ATA 45 Onboard Maintenance System Issue 6 January 2023 PDF

BOMBARDIER DHC 8-400 (PWC PW150) ATA 45 - ONBOARD MAINTENANCE SYSTEM TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY B1/B2 MAINTENANCE TRAINING MANUAL Issue 6 - January 2023 Page 1 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION The central maintenance sy...

BOMBARDIER DHC 8-400 (PWC PW150) ATA 45 - ONBOARD MAINTENANCE SYSTEM TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY B1/B2 MAINTENANCE TRAINING MANUAL Issue 6 - January 2023 Page 1 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION The central maintenance system has different sub-systems to do these functions: • • Monitor, record, test, and show the condition of the avionics and some of the other aircraft systems Sense and store the level of propeller unbalance during flight The central maintenance system has these sub-systems: • • Central Diagnostic System Propeller Balance Monitoring System CENTRALIZED DIAGNOSTIC SYSTEM The CDS lets aircraft maintenance personnel do these procedures: • • • • Read the avionics status report Read malfunction reports from last or previous flight legs Do fault isolation and return to service tests after maintenance is completed Read the part number of the monitored Line Replaceable Units (LRU) PROPELLER BALANCE MONITORING SYSTEM The propeller assembly is initially statically balanced using bolts and washers installed in holes in the spinner back-plate. The propeller balance monitoring system automatically determines and stores the level of propeller unbalance during flight. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 2 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CENTRAL MAINTENANCE SYSTEM BLOCK DIAGRAM TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 3 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM The systems that interface with the CDS operate with different levels of Initiated-BuiltIn-Test (IBIT) capabilities that follow: GENERAL DESCRIPTION The Central Diagnostic System (CDS) is used to monitor, record, test, and show the condition of the avionics and some of the other aircraft systems. • • • Type 1 Type 2 Type 3 The CDS is not an independent system. It shares the processor in the Input/Output Processor module No.1 (IOP1) with the Flight Data Processing System (FDPS). External wiring prevents CDS functions from IOP2. The CDS lets aircraft maintenance personnel to do the procedures that follow: • • • • Read the avionics status report Read fault reports from last or previous flight legs Fault isolation Read the part number of Line Replaceable Units (LRU) it monitors NOTES: The CDS does not access the Built-In-Test-Equipment (BITE) of the avionics systems it interfaces with. During shop maintenance, special test equipment is used to make this troubleshooting data available. The pre-flight system checks are done by related switches in the flight compartment and not by the CDS. The CDS does not do the pre-flight operational tests. These tests are done manually with related switches in the flight compartment. The CDS is used for troubleshooting. It is not approved as the only return-to-service functional test after maintenance is completed. Use the procedures described in the Aircraft Maintenance Manual (AMM). A maintenance switch located on the maintenance panel above the wardrobe and the Audio Radio Control and Display Units (ARCDUs) are used to control the operation of the CDS and to show the condition of the LRUs as messages in plain English. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 4 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM Avionic fault reports are saved in a Non-Volatile Memory (NVM) in real-time in the CDS. The fault reports in the CDS NVM are automatically cleared when a system fault is corrected because of real-time monitoring. GENERAL DESCRIPTION CONTINUED TYPE 1 The type 1 systems interface with the CDS through one input and one output ARINC 429 data bus. The type 1 systems supply their fault reports to the CDS in real-time and the CDS supplies date, time, aircraft serial number, and flight/ground data to the type 1 systems. A transmit data request signal from the CDS is needed to do an Initiated-Built-In-Test (IBIT). TYPE 2 The type 2 systems also supply their fault reports in real-time and a transmit data request signal from the CDS is needed to do an IBIT. TYPE 3 The type 3 systems show their system status but do not have an initiated IBIT function. Avionics system faults are grouped into the two classes that follow: • • Class 1 Class 2 CLASS 1 A class 1 fault condition prevents continued operation of a specific LRU or system channel. Its condition is shown to the pilots as an advisory message, or a warning, caution, or advisory light in the flight compartment. CLASS 2 A class 2 fault condition lets the system continue to operate. These conditions are not shown to the pilots. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 5 of 198 BOMBARDIER DHC 8-400 (PWC PW150) • CENTRAL DIAGNOSTIC SYSTEM It also interfaces with the other components that follow: GENERAL DESCRIPTION CONTINUED The other systems store their fault reports in real-time in their own Non-Volatile Random Access Memory (NVRAM). A transmit data request discrete from the CDS is used to automatically send data from the other systems NVRAM to the CDS. The Central Diagnostic System (CDS) interfaces with the avionics components that follow: • • • • • • • • • • • • • • • • • • • • • • • • • Flight Guidance Modules (FGM1, FGM2) ARINC Communication Addressing and Reporting System management unit (ACARS) Selective Calling Decoder (SELCAL) Passenger Address Amplifier (PAA) Remote Control Audio Unit (RCAU, pilot, copilot, observer) Solid State Cockpit Voice Recorder (SSCVR) Audio and Radio Control Display Unit (ARCDU1, ARCDU2) Stall Protection Module (SPM1, SPM2) Electronic Clock (CLOCK1, CLOCK2) Solid State Flight Data Recorder (SSFDR) Input/Output Processor (IOP1, IOP2) Primary Flight Display (PFD1, PFD2) Engine Display (ED) Multi-Functional Display (MFD1, MFD2) Air Data Unit (ADU1, ADU2) Attitude and Heading Reference System (AHRS1, AHRS2) Microwave Landing System receiver (MLS1, MLS2) Head Up Display computer (HUD) Weather Radar Control Panel (WR CP) Ground Proximity Warning System computer (GPWS) Terminal Collision Avoidance System processor (TCAS) Radio Altimeter transmitter/receiver (RA1, RA2) VHF Navigation receiver (VHF NAV1, VHF NAV2) Automatic Direction Finding receiver (ADF1, ADF2) Air Traffic Control Transponder receiver (ATC1, ATC2) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY Flight Management System unit (FMS1, FMS2) • • • • • • • • • Flap Control Unit (FCU) Engine Monitoring Unit (EMU) Ice Protection Environmental Control System (ECS) Antiskid Auxiliary Power Unit (APU) Flight Control System Electronic Control Unit (FCS ECU) Cabin Pressure Timer Monitor and Control Unit (TMCU1, TMCU2) ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 6 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS BLOCK DIAGRAM TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 7 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The Central Diagnostic System (CDS) interfaces with the type 1 systems that follow: • • • • • Flight Guidance Modules (FGM1, FGM2) Stall Protection Modules (SPM1, SPM2) Input/Output Modules (IOM1, IOM2) Input/Output Processors (IOP1, IOP2) Prime Power Supply Modules (PPSM1, PPSM2) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 8 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, TYPE 1 INTERFACE (IFC) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 9 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The Central Diagnostic System (CDS) interfaces with the type 1 systems that follow: • • • Remote Control Audio Unit (RCAU) Selective Calling Decoder (SELCAL) Audio and Radio Control Display Unit (ARCDU1, ARCDU2) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 10 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, TYPE 1 INTERFACE (RCAU) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 11 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The Central Diagnostic System (CDS) interfaces with the type 1 system that follows: • Electronic Instrument System (EIS) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 12 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, TYPE 1 INTERFACE (EIS) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 13 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The CDS interfaces with the type 2 systems that follow: • • Air Data Unit (ADU1, ADU2) Attitude and Heading Reference Unit (AHRU1, AHRU2) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 14 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, TYPE 2 INTERFACE (ADS, AHRS) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 15 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The CDS interfaces with the type 3 systems that follow: • • • • • • • • • • • • • ARINC Communication Addressing and Reporting System management unit (ACARS) Passenger Address Amplifier (PAA) Solid State Cockpit Voice Recorder (SSCVR) Solid State Flight Data Recorder (SSFDR) Microwave Landing System receiver (MLS1, MLS2) Weather Radar Control Panel (WR CP) Ground Proximity Warning System computer (GPWS) Terminal Collision Avoidance System processor (TCAS) Radio Altimeter transmitter/receiver (RA1, RA2) VHF Navigation receiver (VHF NAV1, VHF NAV2) Automatic Direction Finding receiver (ADF1, ADF2) Air Traffic Control Transponder receiver (ATC1, ATC2) Flight Management System unit (FMS1, FMS2) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 16 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, TYPE 3 INTERFACE (AVIONICS) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 17 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The CDS interfaces with the Engine Monitoring Unit (EMU) non-avionics type 1 system and with the other non-avionics type 2 systems that follow: • • • • • • • • Flap Control Unit (FCU) Ice Protection Environmental Control System (ECS) Antiskid Auxiliary Power Unit (APU) Flight Control System Electronic Control Unit (FCS ECU) Cabin Pressure Timer Monitor and Control Unit (TMCU1, TMCU2) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 18 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, TYPE 1 AND TYPE 2 INTERFACE (OTHER NON-AVIONIC SYSTEMS) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 19 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM GENERAL DESCRIPTION CONTINUED The Electronic Clocks - CLOCK1, CLOCK2 - supply date and time data to the CDS through an ARINC 429 data bus. If a clock - CLOCK1, CLOCK2 - malfunctions, the condition is recorded as a class 2 fault. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 20 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, CLOCK INPUT TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 21 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM SYSTEM OPERATION MODES OF OPERATION The Central Diagnostic System (CDS) operate in the modes that follow: • • • • Monitoring Maintenance Teleloading Idle TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 22 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM The NVM saves the flight leg number, aircraft serial number, date of the start of the leg. It also has a fault message storage capacity that follows: SYSTEM OPERATION • • • MODES OF OPERATION CONTINUED For each class 1 malfunction, the NVM saves the fault data that follows: MONITORING MODE During the monitoring mode, the avionics and other aircraft systems continuously supply data that relates to their condition to the CDS. The CDS operates in the monitoring mode for avionics and other aircraft systems when one of the conditions that follow is sensed: • • • • • • • • Transmits date, time, and airborne or on ground flight condition data to the type 1 systems. The data is saved in the Non-Volatile Memory (NVM) of the avionics equipment Transmit aircraft type and serial number to a Remote Control Audio Unit (RCAU) Receives system status data through an ARINC 429 bus or discrete output from different avionics systems in real-time Receives avionics configuration data from the Aircraft Configuration Module (ACM) Saves fault reports in a Non-Volatile Memory (NVM) in the CDS Sorts status data from different systems Supplies fuel flow, fuel temperature and main oil pressure parameters to the Engine Monitoring Unit (EMU) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY • • • • Flight leg number Date and time when condition was first sensed Equipment ATA reference Each equipment that sensed the malfunction For each class 2 malfunction, the NVM saves the fault data that follows: Calibrated Air Speed (CAS) is more than 50 knots Aircraft is airborne The avionics systems are also monitored for internal faults by the CDS while the CAS is less than 50 kts. During taxiing or takeoff roll, excessive vibration or electrical power transients can cause the CDS to sense nuisance fault conditions. When the CAS goes more than 50 knots but less than 80 kts, the monitoring mode starts but only internal malfunctions are sensed by the CDS. When the airspeed goes more than 80 kts, internal and external malfunction conditions are then sensed. During the monitoring mode, the CDS does the functions that follow: • 50 in the last leg report 300 in the 63 previous legs report class 1 fault messages 50 maintenance report class 2 fault messages • • • Date and time when condition was first sensed Equipment ATA reference Each equipment that sensed the malfunction To decrease the number of no - fault found removals, fault messages show the cause of the fault. Consolidation logic is used to prevent a series of cascaded fault indications from a single malfunction. The ATA code related to each fault message is used for consolidation. The malfunctions are consolidated if they are class 1 faults with the same first four digits of the ATA number and they have the same malfunction cause. The malfunctions that relate to electrical power interruptions are also consolidated. If the bus voltage is less than 18V DC for more than 10 seconds, the last leg report and previous legs report will show a related message that follows: • • • • NO DATA FROM L MAIN BUS NO DATA FROM R MAIN BUS NO DATA FROM L ESS BUS NO DATA FROM R ESS BUS The Flight Data Processing Systems (FDPS1, FDPS2) supplies electrical bus data to the CDS. ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 23 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM SYSTEM OPERATION MODES OF OPERATION CONTINUED MAINTENANCE MODE During the maintenance mode, one or the other ARCDU is used to do Initiated - BuiltIn-Tests (IBIT) and show the indications that follow: • • • Fault messages Type I and 2 LRU part numbers Avionics configuration Before the CDS sends a test command signal to a system, it makes sure that it receives valid data from the system. If not, the ARCDU shows a fault message and will not to continue with the test. If the system is in its Power-On Self Test (POST) mode, the ARCDU shows a SYSTEM BUSY message. The IBITs do not operate while the aircraft is airborne. The type 1 and 2 systems that can be requested by the CDS to do an IBIT have an interlock to prevent an IBIT when it is unsafe to do the test. These interlocks are needed because the CDS is certified as non-essential. The CDS operates in the maintenance mode when the conditions are sensed as follows: • • • • The aircraft is on the ground The Calibrated Air Speed (CAS) is less than 50 kts for more than 10 seconds The CDS GND MAINT toggle switch on maintenance panel is set The MAINT key on the ARCDU is pushed TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 24 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM SYSTEM OPERATION MODES OF OPERATION CONTINUED TELELOADING New operational software serial data is supplied to the units. The unit does a software configuration check before the teleloading mode starts. It makes sure that the software version to be teleloaded is the same as the equipment part number. The unit restarts after a complete and successful teleload. It starts a complete PowerOn Self Test (POST) within 10 seconds. NOTE: The unit must be removed from the aircraft to receive a teleload. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 25 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM SYSTEM OPERATION MODES OF OPERATION CONTINUED IDLE MODE During the idle mode, the CDS functions are stopped until a new mode selection is made to prevent erroneous IBITs during unusual power conditions. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 26 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS MODES OF OPERATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 27 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS The CDS is accessed when the conditions that follow are correct: • • • • The Calibrated Air Speed (CAS) is less than 50 kts for more than 10 seconds The aircraft is on the ground The CDS GND MAINT toggle switch on maintenance panel is set The MAINT key on the ARCDU is pushed TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 28 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS GROUND MAINTENANCE TOGGLE SWITCH SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 29 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs One of the ARCDUs is used to show the CDS maintenance pages. A CDS maintenance mode selection on one ARCDU causes the other ARCDU to be inactive. To let the maintenance personnel control the CDS, the ARCDU has the controls that follow: • • • DIM/RTN Key PREV Key NEXT Key DIM/RTN KEY When the ARCDU is operating in the maintenance mode, the DIM/RTN key is used to return to the main page. PREV KEY The PREV (Previous) key is used to make a previous CDS page selection. NEXT KEY The NEXT key is used to make a next CDS page selection. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 30 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS ARCDU CONTROLS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 31 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MENU SELECTIONS The CDS menu selections and pages are shown in the following chart: TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 32 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS OPERATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 33 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE When the CDS is operating, it has a CDS main menu page that shows the pages that follow: • • • AVIONICS OTHER SYSTEMS AVIONIC DATA If the ARCDU does not receive a response from the CDS in 3 seconds, a CDS NOT AVAILABLE message is shown. The DIM/RTN key is used to return to the main page. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 34 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS SERVICEABLE INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 35 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED AVIONICS PAGE The side key adjacent to the AVIONICS label is pushed to access the AVIONICS report pages. The AVIONICS page shows the reports that follow: • • • • • • AVIONICS STATUS LAST LEG REPORT PREVIOUS LEG REPORT SYSTEM REPORT/TEST MAINT LRU IDENT TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 36 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS AVIONICS PAGE SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 37 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM NOTE: CONTROLS AND INDICATIONS The AVIONICS STATUS report pages are not automatically refreshed. The AVIONICS STATUS report page must be entered again through the AVIONICS report page. CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED AVIONICS STATUS REPORT PAGE The side key adjacent to the AVIONICS STATUS label is pushed to access the AVIONICS STATUS report pages. The AVIONICS STATUS report page shows a list of current internal class 1 and class 2 malfunctions of type 1 and type 2 avionics systems. A RAM malfunction or PROM checksum are examples of internal malfunctions. Internal malfunctions are separated from sensor and external interface malfunctions. Sensors are LRUs in the avionics systems that cannot directly report to the CDS. A malfunctioned system selection from the AVIONICS STATUS report page causes the CDS to show that system main menu. Then, after a selection of an item, the CDS will transmit a data request discrete signal to the system to make it transmit its fault data. If no response is received by the CDS within 5 seconds, a SYSTEM NOT AVAILABLE message is shown. If no malfunctions are sensed, a NO FAULT REPORTED message is shown on the AVIONICS STATUS report. If a response is received by the CDS but it is not correct, a SYSTEM ERROR-ABORTED message is shown at the bottom of the indication. If a malfunction that was sensed during the last leg or on ground condition is no longer present, and if its related system does not sense other internal malfunctions, the system status report is removed from the AVIONICS STATUS page. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 38 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS AVIONICS STATUS PAGE INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 39 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LAST LEG REPORT PAGE The LAST LEG REPORT page is used to show class 1 malfunctions that occurred during the last flight leg. The side key adjacent to the LAST LEG REPORT label is pushed to access the LAST LEG REPORT pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 40 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS LAST LEG REPORT SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 41 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LAST LEG REPORT PAGE CONTINUED If class 1 malfunctions are reported, the LAST LEG REPORT page shows a list of messages with the parameters that follow: • • • Date of the message Time when malfunction condition sensed The ATA code of the first suspected LRU The most recent fault message is shown first. The CDS has a NVM capacity that can save a maximum of 50 malfunctions that have occurred during the last leg an average of one message for each subsystem. The side key adjacent to the message prompt symbol is pushed to show a related test to confirm the malfunction condition. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 42 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS LAST LEG REPORT INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 43 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LAST LEG REPORT PAGE CONTINUED If no class 1 malfunctions are reported, the LAST LEG REPORT page shows a NO FAULT REPORTED message. At the start of a new leg, the messages shown by the LAST LEG REPORT page are moved to the PREVIOUS LEGS page of the CDS NVM. NOTE: The SYSTEM REPORT/TEST menu should be used to troubleshoot the system before the component is removed. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 44 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS LAST LEG REPORT, NO FAULT INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 45 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED PREVIOUS LEGS REPORT PAGE The PREVIOUS LEGS REPORT page is used to show class 1 malfunctions that occurred during the previous flight leg. It shows a list of class 1 messages that occurred during the last flight leg. The side key adjacent to the PREVIOUS LEGS REPORT label is pushed to access the PREVIOUS LEGS REPORT pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 46 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS PREVIOUS LEG REPORT SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 47 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM If no class 1 malfunctions are reported, the PREVIOUS LEGS REPORT page shows a NO FAULT REPORTED message. CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED PREVIOUS LEGS REPORT PAGE CONTINUED If class 1 malfunctions are reported, the PREVIOUS LEGS REPORT page shows a list of messages with the parameters that follow: • • • • Flight leg Date of the message Time when malfunction condition sensed The ATA code of the first suspected LRU The most recent fault message is shown first. The CDS has a NVM capacity that can save a maximum of 300 class 1 messages for a maximum of 63 previous legs. LEG 00 is the present leg. Thus, LEG 01 is the previous leg with the next 62 other legs shown in reverse chronological order. The first shown fault message, is the most recent malfunction of the most recent leg. The last shown malfunction is the oldest malfunction of the oldest flight leg. If more than 300 fault messages are saved, the oldest malfunctions are replaced by the newest ones. The leg numbers are incremented at the start of a new leg. The fault messages for the flight leg 64 if they exist are deleted. The NEXT or PREV keys are pushed to scroll through the different pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 48 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS PREVIOUS LEGS REPORT INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 49 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST The SYSTEM REPORT/TEST page is used to show a list of the avionics systems that are connected to the CDS for test. The side key adjacent to the SYSTEM REPORT/TEST label is pushed to access the SYSTEM REPORT/TEST page. The SYSTEM REPORT/TEST page shows a NOT FITTED message below the LRU label and its prompt symbol is out of view if the equipment is not installed. If the adjacent side key is pushed, the indication does not change. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 50 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS SYSTEM/REPORT TEST PAGE SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 51 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST CONTINUED The list of the avionics systems is shown on 3 different SYSTEM REPORT/TEST pages. The NEXT or PREV keys are pushed to scroll through the different pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 52 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS SYSTEM/REPORT TEST PAGE 1/3, 2/3 INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 53 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST CONTINUED The list of the avionics systems is shown on 3 different SYSTEM REPORT/TEST pages. The NEXT or PREV keys are pushed to scroll through the different pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 54 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS SYSTEM/REPORT TEST PAGE 3/3 INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 55 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST CONTINUED The side key adjacent to the IFC label is pushed to access the IFC page to show a list of IFC equipment. The IFC page shows a list for the equipment that follows: • • • Flight Guidance Module (FGM) Stall Protection Module (SPM) Input/Output Processor (IOP), Input/Output Module (IOM), Prime Power Supply Module (PPSM) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 56 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS IFC PAGE SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 57 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST CONTINUED The side key adjacent to the Electronic Instrument System (EIS) label is pushed to access the EIS page to show a list of EIS equipment. The EIS page shows a list for the equipment that follows: • • • Primary Flight Displays (PFD1, PFD2) Multi-Functional Displays (MFD1, MFD2) Engine Display (ED) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 58 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS EIS PAGE SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 59 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST CONTINUED The side key adjacent to the Audio and Radio Management System (ARMS) label is pushed to access the ARMS page to show a list of EIS equipment. The ARMS page shows a list for the equipment that follows: • • Audio and Radio Control Display Units (ARCDU1, ARCDU2) Remote Control Audio Unit (RCAU) There is a different system report or test for each type of avionics system. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 60 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS ARMS PAGE SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 61 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM REPORT/TEST CONTINUED When a side key adjacent to a type 1 system is pushed, the SYSTEM REPORT/TEST page shows that system main menu page. The type 1 system shows the parameters for each system main menu page as follows: • • • • LAST LEG REPORT PREVIOUS LEG REPORT SYSTEM TEST MAINT TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 62 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM, SYSTEM REPORT/TEST PAGE SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 63 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM LAST LEG REPORT PAGE The system LAST LEG REPORT page is used to show class 1 malfunctions that occurred during the last flight leg. If class 1 malfunctions are reported, the system LAST LEG REPORT page shows a list of messages with the parameters that follow: • • • Date of the message Time when malfunction condition sensed The ATA code of the first suspected LRU At the start of a new leg, the messages shown by the system LAST LEG REPORT page are moved to the PREVIOUS LEGS page of the CDS NVM. If no class 1 malfunctions are reported, the system LAST LEG REPORT page shows a NO FAULT REPORTED message. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 64 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM LAST LEG REPORT INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 65 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM PREVIOUS LEGS REPORT PAGE The system PREVIOUS LEGS REPORT page is used to show class 1 malfunctions that occurred during the previous flight legs. It shows a list of class 1 fault messages that occurred during the last flight leg for the related system. The side key adjacent to the system PREVIOUS LEGS REPORT label is pushed to access the system PREVIOUS LEGS REPORT pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 66 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM PREVIOUS LEGS REPORT SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 67 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM PREVIOUS LEGS REPORT PAGE CONTINUED If class 1 malfunctions are reported, the system PREVIOUS LEGS REPORT page shows a list of its messages with the parameters that follow: • • • • Flight leg Date of the message Time when malfunction condition sensed The ATA code of the first suspected LRU The most recent fault message is shown first. The CDS has a NVM capacity that can save a maximum of 300 class 1 messages for a maximum of 63 previous legs. The NEXT or PREV keys are pushed to scroll through the different pages. If no class 1 malfunctions are reported, the system PREVIOUS LEGS REPORT page shows a NO FAULT REPORTED message. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 68 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM PREVIOUS LEGS REPORT INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 69 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM TEST The SYSTEM TEST page is used to test the related avionics system. The side key adjacent to the SYSTEM TEST label is pushed to access the SYSTEM TEST page. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 70 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM, SYSTEM TEST SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 71 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM TEST CONTINUED When the conditions for the test are set, the side key adjacent to the CONTINUE label is pushed to continue the system test. A TEST IN PROGRESS 60S message is shown while the system is being tested. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 72 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM, SYSTEM TEST SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 73 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM TEST CONTINUED If the test is not satisfactory, the SYSTEM TEST page shows a list of messages with the parameters that follow: • • The ATA code of the first suspected LRU Malfunction class If the test is satisfactory, the SYSTEM TEST page shows a TEST OK message. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 74 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM, SYSTEM TEST INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 75 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE The system MAINT page is used to show related type 1 system class 2 malfunctions. The side key adjacent to the MAINT label is pushed to access the system MAINTENANCE pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 76 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM, MAINTENANCE PAGE SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 77 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED If class 2 malfunctions are reported, the system MAINTENANCE page shows a list of messages with the parameters that follow: • • • Date of the message Time when malfunction condition sensed The ATA code of the first suspected LRU If no class 2 malfunctions are reported, the system MAINTENANCE page shows a NO FAULT REPORTED message. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 78 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 1 SYSTEM, MAINTENANCE PAGE INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 79 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED When a side key adjacent to a type 2 system is pushed, the SYSTEM REPORT/TEST page shows that system main menu page. The side key adjacent to the system label is pushed to start the test. A TEST IN PROGRESS 60S message is shown while the system is being tested. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 80 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 2 SYSTEM, SYSTEM TEST SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 81 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED If the test is not satisfactory, the SYSTEM TEST page shows a list of messages with the parameters that follow: • • The ATA code of the first suspected LRU Malfunction class If the test is satisfactory, the SYSTEM TEST page shows a TEST OK message. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 82 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 2 SYSTEM, SYSTEM TEST INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 83 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED When a side key adjacent to a type 3 system is pushed, the SYSTEM REPORT/TEST starts that system test. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 84 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 3 SYSTEM, SYSTEM TEST SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 85 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED The system page shows different steps of a procedure to do the test. The first page shows the procedure to start the test. If the step is correct, the side key adjacent to the YES label is pushed. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 86 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 3 SYSTEM, SYSTEM TEST SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 87 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED If the step is correct, the side key adjacent to the YES label is pushed. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 88 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 3 SYSTEM, SYSTEM TEST INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 89 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED If the test is satisfactory, the SYSTEM TEST page shows a TEST OK message. If the test is not satisfactory, the SYSTEM TEST page shows a FAILED. The SYSTEM REPORT/TEST page shows a SYSTEM NOT AVAILABLE message if the CDS requests a test and no response is received within 5 seconds. If a response is received by the CDS but it is not correct, a SYSTEM ERRORABORTED message is shown at the bottom of the indication. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 90 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TYPE 3 SYSTEM, SYSTEM TEST INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 91 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED The MAINT page is used to show class 2 malfunctions that occurred during the last flight leg. The side key adjacent to the MAINT label is pushed to access the MAINTENANCE pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 92 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, MAINTENANCE PAGE SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 93 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED SYSTEM MAINT PAGE CONTINUED If class 2 malfunctions are reported, the MAINTENANCE page shows a list of messages with the parameters that follow: • • • Date of the message Time when malfunction condition sensed The ATA code of the first suspected LRU The most recent fault message is shown first. The CDS has a NVM capacity that can save a maximum of 50 class 2 malfunctions that have occurred during the last leg an average of one message for each subsystem. At the start of a new leg, the messages shown by the system MAINTENANCE page are erased. If no class 2 malfunctions are reported, the MAINTENANCE page shows a NO FAULT REPORTED message. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 94 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, MAINTENANCE PAGE INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 95 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LRU IDENT PAGE The LRU IDENT page shows the hardware and software part numbers for the avionics systems that follow: • • • • • • Integrated Flight Cabinet (IFC) Electronic Instrument System (EIS) Remote Control Audio Unit (RCAU) Audio and Radio Control Display Unit (ARCDU) Air Data Unit (ADU) Attitude and Heading Reference System (AHRS) The side key adjacent to the AVIONICS IDENT label is pushed to access the LRU IDENT pages. The IFC, EIS, ADU, and AHRS systems have more than one component. They have a related page to show a list of their components. The NEXT or PREV keys are pushed to scroll through the different pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 96 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, LRU IDENTIFIER PAGE SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 97 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LRU IDENT PAGE CONTINUED The side key adjacent to the IFC label is pushed to access the IFC page to show a list of IFC equipment. The IFC page shows a list for the equipment that follows: • • • • • Flight Guidance Module (FGM) Stall Protection Module (SPM) Input/Output Processor (IOP) Input/Output Module (IOM) Prime Power Supply Module (PPSM) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 98 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, LRU IDENTIFIER PAGE, IFC PAGE SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 99 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LRU IDENT PAGE CONTINUED The side key adjacent to the EIS label is pushed to access the EIS page to show a list of EIS equipment. The EIS page shows a list for the equipment that follows: • • • Primary Flight Displays (PFD1, PFD2) Multi-Functional Displays (MFD1, MFD2) Engine Display (ED) TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 100 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, LRU IDENTIFIER PAGE, EIS PAGE SELECTION AND INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 101 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED LRU IDENT PAGE CONTINUED The LRU IDENT page shows the hardware and software part numbers for the avionics systems. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 102 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS, LRU IDENTIFIER PAGE LRU INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 103 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS The OTHER SYSTEMS pages show parameters for the non-avionics systems that follow: • • • • • • • • • EMU, Engine Monitoring Unit FCS, Flight Control System ECS, Environmental Control System TMCU1, TMCU2, Timer Module Control Unit ANTI-SKID ICE PROTECTION, Ice and Rain Protection System (IRPS) APU, Auxiliary Power Unit FLAPS CABIN PRESS CONTROL The side key adjacent to the OTHER SYSTEMS label is pushed to access the OTHER SYSTEMS pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 104 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS OTHER SYSTEMS PAGES SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 105 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED A list of other systems is shown on 2 different OTHER SYSTEMS pages. The NEXT or PREV keys are pushed to scroll through the different pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 106 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS OTHER SYSTEMS PAGES INDICATIONS TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 107 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES The side key adjacent to the EMU label is pushed to access the Engine Monitoring Unit (EMU) pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 108 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS EMU PAGE SELECTION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 109 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED The EMU has the eight more menu pages that follow: • • • • • • • • POWERPLANT FAULTS TREND MONITOR EVENT HISTORY OPERATIONAL DATA POWER ASSURANCE POWERPLANT INTERFACE EMU STATUS CONFIGURATION The side key adjacent to the label is pushed to access the related Engine Monitoring Unit (EMU) pages. NOTE: The top right part of the EMU pages gives the indications that follow: TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 110 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS POWERPLANT MAIN MENU INDICATION TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 111 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED POWERPLANTS FAULTS PAGE The POWERPLANT FAULTS page gives access to the related pages that follow: • • • • FADEC/PEC HEALTH STATUS DISPATCH: POWERPLANT 1, POWERPLANT 2 Short term, long term, unlimited, no dispatch DISPATCH: ENGINE 1, ENGINE 2 Short term, long term, unlimited, no dispatch DISPATCH: PROPELLER 1, PROPELLER 2 Short term, long term, unlimited, no dispatch TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 112 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS POWERPLANT FAULTS MENU TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 113 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED TREND MONITOR PAGE The TREND MONITOR page gives access to the related pages that follow: • • ENGINE 1, ENGINE 2 CONDITIONS ENGINE 1, ENGINE 2 SPOOL DOWN TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 114 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS TREND MONITOR MENU TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 115 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED EVENT HISTORY PAGE The EVENT HISTORY page gives access to the related pages that follow: • • • • POWERPLANT EXCEEDANCE ENGINE HEALTH HISTORY DIAGNOSTIC EVENTS EVENT RECORDINGS The POWERPLANT EXCEEDANCE page gives access to the related data that follows: • • • Chip detectors Oil system Fuel system TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 116 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS EVENT HISTORY MENU TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 117 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED OPERATION DATA PAGE The OPERATIONAL DATA page gives access to the related pages that follow: • • • FLIGHTS SINCE ENGINE HOURS SINCE: ENGINE 1, ENGINE 2 ENGINE CUMULATIVE: ENGINE 1, ENGINE 2 TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 118 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS OPERATIONAL DATA MENU TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 119 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM CONTROLS AND INDICATIONS CDS ACCESS CONTINUED ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED POWER ASSURANCE PAGE The POWER ASSURANCE page gives access to the ENG 1, ENG 2 pages. TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 120 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL MAINTENANCE SYSTEM - CDS POWER ASSURANCE MENU TO BE USED FOR MAINTENANCE TRAINING PURPOSES ONLY ATA 45 - ONBOARD MAINTENANCE SYSTEM Issue 6 - January 2023 Page 121 of 198 BOMBARDIER DHC 8-400 (PWC PW150) CENTRAL DIAGNOSTIC SYSTEM The ENGINE HEALTH DISCRETE SWITCH page gives access to the related data that follows: CONTROLS AND INDICATIONS • • • CDS ACCESS CONTINUED Chip detectors Oil system Fuel system ARCDUs CONTINUED CDS MAIN PAGE CONTINUED OTHER SYSTEMS CONTINUED EMU PAGES CONTINUED POWERPLAN