A330-200/300 Fuel System Training Manual PDF

A330-200/300 DIFFERENCES FROM A318/A319/A320/A321 (CFM56/V2500) TRAINING MANUAL FUEL (US UNITS) THIS MANUAL IS FOR TRAINING PURPOSES ONLY AND SHOULD NOT BE USED FOR ANY OTHER PURPOSE THE...

A330-200/300 DIFFERENCES FROM A318/A319/A320/A321 (CFM56/V2500) TRAINING MANUAL FUEL (US UNITS) THIS MANUAL IS FOR TRAINING PURPOSES ONLY AND SHOULD NOT BE USED FOR ANY OTHER PURPOSE THESE NOTES ARE NOT UPDATED B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL (US UNITS) Fuel Line Maintenance Briefing (2)........................... 2 TANK, VENTING, SCAVENGE AND INDICATING Fuel Tank D/O (3)........................................ 24 Fuel Tank Venting D/O (3)................................. 32 Fuel Tank Indicating D/O (3)............................... 36 FUEL FEED Engine Feed D/O (3)..................................... 56 APU Feed D/O (3)....................................... 78 FUEL TRANSFERS Main Transfer D/O (A330-200)............................. 92 Main Transfer D/O (A330-300)............................ 112 Trim Transfer D/O (A330-200)............................ 124 Trim Transfer D/O (A330-300)............................ 158 REFUEL/DEFUEL Refuel/Defuel D/O (A330-200)............................ 184 Refuel/Defuel D/O (A330-300)............................ 222 JETTISON Jettison D/O (A330-200)................................. 258 MAINTENANCE PRACTICE Fuel Tank Safety Procedures (2)........................... 266 G7508471 - G7UT0TU CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) TABLE OF CONTENTS Nov 21, 2008 28 - FUEL (US Units) Page 1 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 1 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) Fuel is supplied to the APU from the LH inner tank collector cell with SYSTEM OVERVIEW the forward APU pump through the trim transfer line. If a low pressure is detected in the trim transfer line, the aft APU pump stars. The APU The fuel system has different functions, which are: fuel isolation valve controls the fuel flow from the FWD inner tank - storage, venting and scavenge, to the trim transfer line. If an APU fire is detected, the APU LP valve - engine feed, closes. The fuel/air separator, installed in the trim tank fuel transfer - APU feed, line, keeps sufficient fuel for APU operation if air enters the transfer - main and trim transfers, line. - refuel/defuel, Main Transfer: - jettison as an option, The main transfer system controls the fuel flow from the center tank - and the maintenance/test facilities. and the outer tanks to the two inner tanks for engine feeding. The two A330-200 OVERVIEW transfers are usually controlled automatically by the Fuel Control & The fuel is stored in six tanks. In each wing, there is an outer tank, Monitoring Computers (FCMCs), but they can be manually controlled and an inner tank divided into two parts: the forward inner tank, and if necessary. The trim transfer system controls the A/C center of the aft inner tank. There is also a center tank, and a trim tank. Each gravity by forward and aft transfers. Trim transfers are controlled inner tank section has one closed area called the collector cell, which automatically by the FCMCs, but a manual forward transfer can be is a reservoir for the booster pumps. A dedicated jet pump is only initiated from the fuel panel if a failure occurs. used to fill the collector cell of the main booster pumps. A vent surge tank is installed outboard of each outer tank in the wing and on the RH side of the trim tank. They vent the fuel tanks and collect fuel split from the tanks. Each tank has one or more water drain valves located at low points. Engine Feed: G7508471 - G7UT0TU - FM28B1000000003 An independent fuel feed system supplies each engine. For each engine, there are two main fuel pumps, and one stand-by pump. In the normal configuration the main pumps are running and the stand-by pump is there as a back up when a main pump has a too low output pressure. A LP valve isolates its related engine from the fuel supply. The crossfeed system enables any engine to be fed from any tank. It is used to correct fuel imbalance between tanks or during gravity feeding of the engines. APU Feed: CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 2 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 2 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 SYSTEM OVERVIEW - A330-200 OVERVIEW CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 3 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 3 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) automatically the transfers, but they can be manually controlled if SYSTEM OVERVIEW (continued) necessary. The trim transfer system controls the A/C center of gravity by forward and aft transfers. The FCMCs automatically control trim A330-300 OVERVIEW transfers, but a manual forward transfer can be initiated from the fuel The fuel is stored in five tanks. In each wing, there is an outer tank, panel if a failure occurs. and an inner tank divided into two parts: the forward inner tank, and the aft inner tank. There is also a trim tank. Each inner tank section has one closed area called the collector cell, which is a reservoir for the booster pumps. A dedicated jet pump is only used to fill the collector cell of the main booster pumps. A vent surge tank is installed outboard of each outer tank in the wing and on the RH side of the trim tank. They vent the fuel tanks and collect fuel split from the tanks. Each tank has one or more water drain valves located at low points. Engine Feed: An independent fuel feed system supplies each engine. For each engine, there are two main fuel pumps, and one stand-by pump. In the normal configuration the main pumps are running and the stand-by pump is there as a back up when a main pump has a too low output pressure. A LP valve isolates its related engine from the fuel supply. The crossfeed system lets any engine be fed from any tank. It is used to correct fuel imbalance between tanks or during gravity feeding of the engines. APU Feed: G7508471 - G7UT0TU - FM28B1000000003 Fuel is supplied to the APU from the LH inner tank collector cell with the forward APU pump through the trim transfer line. If a low pressure is detected in the trim transfer line, the aft APU pump starts. The APU fuel isolation valve controls the fuel flow from the FWD inner tank to the trim transfer line. If an APU fire is detected, the APU LP valve closes. The fuel/air separator, installed in the trim tank fuel transfer line, keeps sufficient fuel for APU operation if air enters the transfer line. Main Transfer: The main transfer system controls the fuel flow from the outer tanks to the two inner tanks for engine feeding. The FCMCs usually control CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 4 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 4 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 SYSTEM OVERVIEW - A330-300 OVERVIEW CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 5 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 5 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) SERVICING Automatic refueling may be accomplished with normal electrical power established or with battery power only. NOTE: On battery power only, the ADIRS does not send attitude information to the FCMS, so there could be a difference up to 750kg. between the PRESELECTED and ACTUAL fuel quantity after refueling. Procedure: - set parking brake, - put chocks in position. Make sure that the chocks do not touch the tires. The additional fuel weight can cause the tires to contact the chocks, - connect 2 or 4 hoses to the fuel couplings, - put ADIRU 1, 2, 3 in NAV position on the overhead panel, - open the Refuel panel access door on the lower fuselage, - if necessary, set the PoWeR SUPPLY to BATtery, - do the hi level test - hi-level & overflow lights change condition, CocKPiT & END lights come on, fuel quantity, preselected & actual displays show all 8's, - operate the load switch to INC to set the preselected value to the total fuel quantity required, G7508471 - G7UT0TU - FM28B1000000003 - check refuel valve switches are in norm and guarded position, - set the mode select switch to REFUEL - make sure that the fuel quantity and ACTUAL values increase, - the end light comes on steady when refueling is complete - The actual and preselected values agree within ± 200 kg. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 6 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 6 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 SERVICING CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 7 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 7 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) This is the water drain valve operation video. DAILY CHECKS Years of operational experience have shown that regular draining of the fuel tank water content will prevent many fuel system problems. The Maintenance Planning Document (MPD) recommends that operators do this procedure every 7 days or less. DRAIN WATER CONTENT The water drain valves are installed in the center tank, in the wing, and in trim tanks. All drains should be operated to carry out proper water removal from the fuel. There are 2 drains in the center tank, 7 in each wing, and 3 in the trim tank. If possible, the best time to drain the water from the tanks is prior to the refueling. If that is not possible, wait one hour after refueling for the fuel to stabilize. The center tank drain valves are found in an access panel on either side of the fuselage. The wing drain valves are accessible from the underside of the wing. For gravity purging, the center and wing tanks need > 10% tank content and the trim tank needs at least 1,000 kg (2200 lb). The THS should also be moved to 0° trim. To operate the drain valves, use the PURGER tool and push up on the valve. Make sure to drain at least one liter of fuel for proper water removal. When draining is complete, remove the PURGER tool and make sure that there is no leakage at the drain valve. If the drain G7508471 - G7UT0TU - FM28B1000000003 valve leaks, set correctly the valve by pushing up and releasing the drain valve again. ENVIRONMENTAL PRECAUTIONS Do not discharge products such as oil, fuel, solvent, lubricant either in trash bins, soil or into the water network (drains, gutters, rain water, waste water, etc...). Sort waste fluids and use specific waste disposal containers. Each product must be stored in an appropriate and specific cabinet or room such as a fire-resistant and sealed cupboard. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 8 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 8 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 DAILY CHECKS - DRAIN WATER CONTENT & ENVIRONMENTAL PRECAUTIONS CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 9 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 9 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) MEL/DEACTIVATION CROSSFEED VALVE FAILURE In case of a crossfeed valve failure, and if we are not in Extended Range operations the aircraft may be dispatched referring to the MEL with valve inoperative in the CLOSED position. In addition, the inner and outer tank inlet valves, all fuel quantity indications and both center tank transfer pumps (A330-200) must be operational. The cross feed valve is deactivated by removing the actuator and installing a locking tool. WARNING: Obey all safety procedures related to flight controls, landing gear and the fuel system when following this procedure Procedure: - on the ECAM FUEL page, check that the crossfeed valve is in the green/crossline position (closed), - open XFEED VaLVe MOTor C/B's, - do an operational test of the outer and inner tank inlet valves from the MCDU/FCMC Fuel Valves Test menu, - (A330-200 only) do an operational test of the center tank transfer pumps. Transfer fuel from the center tank using each pump G7508471 - G7UT0TU - FM28B1000000003 independently, - at the applicable valve, check the OPEN/CLOSED indicator and remove the actuator, - if the valve was open, use an applicable tool to fully close the valve, - install DUMMY plug and receptacle on the connectors removed from the actuator, - align dowel and install the valve locking tool. Secure with the v-band clamp. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 10 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 10 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MEL/DEACTIVATION - CROSSFEED VALVE FAILURE CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 11 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 11 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) MEL/DEACTIVATION (continued) REFUEL ISOLATION VALVE FAILURE During refueling, the refuel isolation valve solenoid is energized and fuel pressure from the tanker/pump unit opens the valve. If the solenoid fails or if the electrical control of the solenoid fails, the valve may be operated by a manual plunger. To refuel the aircraft, PUSH and HOLD the plunger on the valve. The fuel pressure from the tanker/pump unit will open the valve. Be sure to monitor the fuel quantity carefully using the normal indication system. When the desired quantity is reached, release the plunger to close the valve. G7508471 - G7UT0TU - FM28B1000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 12 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 12 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MEL/DEACTIVATION - REFUEL ISOLATION VALVE FAILURE CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 13 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 13 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) MEL/DEACTIVATION (continued) FUEL QUANTITY INDICATION FAILURE The aircraft may be dispatched with unserviceable fuel quantity indications. One OUTER, one INNER, or the CENTER tank quantity indication may be inop as per the MEL. The TRIM tank indication may be inop as long as there is no fuel in the TRIM tank. NOTE: An indication with dashes on the two last digits is considered operative. The loss of accuracy must be taken into account for fuel planning. The conditions for dispatch with an OUTER quantity inop are: - after refueling, check fuel quantity in the related tank using the manual MLIs, - the FUEL used indication must be operational, - adjacent INNER tank fuel quantity is operational, - low Level sensing system test OK (check on MCDU/FCMC menu). The conditions for dispatch with an INNER quantity inop are: - after refueling, check fuel quantity in the related tank using the manual MLIs, - the FUEL used indication must be operational, - left and right INTERTANK valves are closed (check on G7508471 - G7UT0TU - FM28B1000000003 MCDU/FCMC menu), - low Level sensing system test OK (check on MCDU/FCMC menu). The conditions for dispatch with a CENTER quantity inop are: - after refueling, check fuel quantity in the related tank using the manual MLIs, - the FUEL used indication must be operational, - all INNER and OUTER tank fuel quantities are operational. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 14 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 14 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MEL/DEACTIVATION - FUEL QUANTITY INDICATION FAILURE CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 15 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 15 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) MEL/DEACTIVATION (continued) NOTE: The fuel specific gravity reading may be from a fuel sample or from the FCMS INPUT PARAMETERS (MCDU/FCMC USE OF MAGNETIC LEVEL INDICATORS (MLIs) menu) Each fuel tank has one or more MLIs. In case of an indication For example: malfunction, the MLIs may be used to check fuel quantity. There is RIGHT wing MLI number - 6 one MLI in the CenTeR tank (A330-200 only), 4 in each INNER tank Attitude: P= -1,0, R= 0,5 and 2 in each OUTER tank. UNITS reading - 10 The aircraft attitude will determine which fuel table to use. The Air Volume in liters - 720 Data Inertial Reference Unit (ADIRU) will be used to find the aircraft Sp. Gravity - 0.81 attitude. The air data inputs to the ADIRU can be read by using the Fuel weight = 583 Kg. alpha call-up function in the Aircraft Condition Monitoring System (ACMS). With the ADIRU's in the NAV position, select the ACMS NOTE: Only even-numbered MLI units are listed in the tables. To menu in the Central Maintenance System (CMS). From this menu, calculate the volume of fuel for odd numbers, interpolate select CALL UP PARAM ALPHA. Type ROLL to access roll data (divide the difference) between the nearest even numbers and type PTCH to access pitch data. in the table. To use the MLI, extend the indicator rod and read the UNITS mark nearest the bottom surface of the wing. Each tank is separately checked. To determine wing volume, use the most outboard MLI, which indicates fuel in the tank. To check the total fuel quantity on the aircraft determine the total in each tank (CTR, INNER, OUTER) and add them together. G7508471 - G7UT0TU - FM28B1000000003 NOTE: A small correction for the COLLECTOR cells may be applied to the INNER tank volume based on the time since the boost pumps were shut off. Using the attitude reference + MLI number + MLI reading, find the correct fuel table in the AMM and read the fuel volume. The MLI No identifies the tables. Make sure to identify LEFT or RIGHT MLI on the table to avoid miscalculations. The final step is to convert the volume to weight. Multiply the volume by the fuel specific gravity. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 16 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 16 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MEL/DEACTIVATION - USE OF MAGNETIC LEVEL INDICATORS (MLIS) CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 17 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 17 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MEL/DEACTIVATION - USE OF MAGNETIC LEVEL INDICATORS (MLIS) CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 18 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 18 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MEL/DEACTIVATION - USE OF MAGNETIC LEVEL INDICATORS (MLIS) CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 19 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 19 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL LINE MAINTENANCE BRIEFING (2) MAINTENANCE TIPS During a walk-around inspection, it is important to check the surge tank burst disc on the wing lower surface. A white cross should be visible on a black background. If it is not visible, it may indicate a problem with the tank venting system. During refueling operations, connect a bonding cable between the fuel tanker and a grounding point on the aircraft, typically on the nose or main gear. Connect a grounding cable from a grounding point on the aircraft to the ground. In case of refueling process abort, information regarding system status can be retrieved via the MCDU in the FCMC REFUEL PARAMETERS menu. G7508471 - G7UT0TU - FM28B1000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 20 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 20 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MAINTENANCE TIPS CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 21 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 21 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MAINTENANCE TIPS CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 22 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 22 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28B1000000003 MAINTENANCE TIPS CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL LINE MAINTENANCE BRIEFING (2) Nov 20, 2008 28 - FUEL (US Units) Page 23 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 23 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK D/O (3) GENERAL Each fuel tank is a part of the A/C structure. The inside of each tank is coated with a paint that contains leachable chromate. This chromate helps to prevent microbiological contamination of the fuel tanks. All the materials used to seal the tanks are fully resistant to all fuels and fuel additives. G7508471 - G7UT0TU - FM28D1000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 24 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 24 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D1000000003 GENERAL CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 25 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 25 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK D/O (3) - drain the water which could possibly come out of the fuel in the TANKS tank, - drain all the remaining fuel out of a tank (for maintenance). The fuel is stored in six tanks: - a center tank (only on the A330-200), - in each wing: an inner tank divided into two parts, (the FWD inner tank, the aft inner tank) and an outer tank, - a trim tank. Vent surge tanks are installed outboard of each outer tank in the wing and on the RH side of the trim tank. TANKS The fuel tanks and surge tanks are located as follows: - the center tank is between the LH rib 1 and the RH rib 1 (only on the A330-200), - the inner tank is between rib 1 and rib 23, - the LH (RH) outer tank is between rib 23 and rib 33, - the LH (RH) surge tank is between rib 33 and rib 39. The trim tank is made from carbon fiber composite material in the THS main box structure between rib 20 (LH) (19 for the A330-200) and rib 18 (RH). The THS surge tank is at the RH side of the THS between rib 18 and rib 20 (RH). Access to the tanks is gained through manhole panels. G7508471 - G7UT0TU - FM28D1000000003 COLLECTOR CELLS Each inner tank contains a fuel collector cell which is built between ribs, the center spar and sealed diaphragms FWD of the rear spar. The bottom of ribs 2 is equipped with three flap-type check valves. They let fuel flow into each collector cell and prevent it from flowing out. The top of the collector cell is equipped with openings which let fuel fall back into the inner tanks. WATER DRAIN VALVES Each tank has one or more water drain valves. The drain valves are used to: CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 26 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 26 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D1000000003 TANKS - TANKS... WATER DRAIN VALVES CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 27 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 27 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK D/O (3) TANKS (continued) EMERGENCY ISOLATION VALVES The valves are installed between the AFT and FWD inner tanks. During normal operation the emergency isolation valves are open. The crew has to close the split valves to isolate a fuel leak. An action on the L or R INR TK SPLIT P/BSWs on the FUEL control panel enables manual control of the emergency isolation valves. The fuel is transferred by gravity. When you press one of the INR TK SPLIT P/BSWs, the valves will close ("ON" legend comes on the P/B) and when they are confirmed closed, the "SHUT" legend comes on the P/B. G7508471 - G7UT0TU - FM28D1000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 28 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 28 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D1000000003 TANKS - EMERGENCY ISOLATION VALVES CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 29 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 29 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK D/O (3) TANKS (continued) TRIM PIPE SHROUD The trim fuel pipe has an outer shroud. If the trim pipe has a fuel leak, the shroud contains the fuel leakage. The shroud has a fluid drain at its lowest point (FR 47). This drain is a small diameter pipe that connects the shroud to a drain mast. The drain mast is installed on the lower fuselage at FR 53.4. G7508471 - G7UT0TU - FM28D1000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 30 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 30 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D1000000003 TANKS - TRIM PIPE SHROUD CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 31 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 31 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK VENTING D/O (3) GENERAL The tank venting system keeps the air pressure in the fuel tanks near the external air pressure. This function prevents a large difference between these pressures, which could cause damage to the fuel tank structure. This function is particularly necessary during the refuel or defuel operations and when the A/C climbs or descends. Each vent surge tank keeps its related fuel tanks open to the ambient air pressure. The operation of the tank venting system is fully automatic. There are no manual controls. The tank venting system is divided into two systems. These are: - the wing and center tanks venting system, - the trim tank venting system. G7508471 - G7UT0TU - FM28D2000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK VENTING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 32 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 32 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D2000000003 GENERAL CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK VENTING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 33 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 33 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK VENTING D/O (3) enters the surge tank and causes the overpressure protector to operate, VENTING then this fuel will go overboard. A NACA intake is mounted on the access panel of each surge tank. Let's see in details the venting system. The stack pipe connected to the NACA duct is equipped with a flame WING & CENTER TANKS VENTING arrestor. If a ground fire occurs, it prevents the ignition of the fuel For the A330-200 A/C, the center tank vent pipe has an open-end vapor in the surge tank. It also lets air flow freely through it in both fitting at each end. The pipe connects the middle of the center tank to directions. If fuel comes out of the overpressure protector, it could go the LH surge tank at rib 33. inboard along the wing. A wing fence makes sure that such fuel falls The LH (RH) inner tank vent pipe connects the inboard end of the off the wing. tank to the surge tank. The pipe has two open-end fittings at its inboard TRIM TANK VENTING end. A weir duct is installed between rib 22 and rib 23. The weir duct The trim tank is composed of a main vent pipe and a secondary vent makes sure that the fuel does not go to the vent valve during a refuel pipe. At different locations, a breather assembly is attached to the operation. bottom of each vent pipe and lets the fuel drain back into the trim The outer tank vent pipe connects the open-end fitting, inboard of rib tank. 33 to the inner tank vent pipe, between the weir duct and rib 22. The vent valve installed on the inboard-face of RH rib 18 and The surge tank has a drain pipe which connects the bottom of the connected to the main vent pipe makes sure the RH part of the trim surge tank, at rib 33, to the inner tank vent pipe, outboard of rib 29. tank is open to the surge tank in level flight and during refuel/defuel The bottom of each vent pipe includes a breather assembly at different operations. locations. If fuel goes into the vent pipe, the breather assembly lets The two inner vent valves connected to the main vent pipe make sure the fuel drain back into the tank. the trim tank is open to the surge tank when the A/C climbs. The inner and outer tanks each have vent valves which are connected The LH outer tank vent valve connected to the secondary vent pipe to the related vent pipe. The vent valves close when the fuel level near and attached inboard of LH rib 20 closes when the fuel level near to them increases, and open when the fuel level decreases. This function G7508471 - G7UT0TU - FM28D2000000003 the valve increases. helps to make sure that fuel does not get into the vent pipes. In the trim surge tank, the NACA intake, flame arrestor and Overpressure protectors are installed in the center tank and in the overpressure protector are of the same type as for the wing venting bottom of the surge tank. They make sure the pressure in the center system. If fuel gets into the trim surge vent tank, a check valve tank or in the surge tank, and thus the inner and outer tanks, does not installed on the inboard face of RH rib 18 lets this fuel flow back into exceed the design limits. They prevent too high differential pressure. the trim tank. If the pressure in the center tank increases to a specified value the overpressure protectors break open to release the pressure into the inner tank. If the flow of air into or out of the surge tank is blocked, the overpressure protector breaks open to release the pressure. If fuel CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK VENTING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 34 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 34 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D2000000003 VENTING - WING & CENTER TANKS VENTING & TRIM TANK VENTING CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK VENTING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 35 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 35 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK INDICATING D/O (3) GENERAL The indicating systems are: Fuel Quantity Indicating (FQI), tank level sensing and temperature measurement. All this data is sent to the Fuel Control and Monitoring Computers (FCMCs), which transmit it to the ECAM FUEL page and the refuel/defuel control panel. In case of fuel quantity indication failure, the fuel quantity in the outer tanks, the inner tanks and the center tank can be measured using Manual Magnetic Indicators (MMIs). G7508471 - G7UT0TU - FM28D3000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 36 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 36 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D3000000003 GENERAL CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 37 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 37 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK INDICATING D/O (3) Each temperature sensor is installed near the lowest part of the tank. INDICATING This makes sure that the temperature sensor is kept in the fuel most of the time. The electrical resistance of the temperature sensors In this topic we shall describe the indicating functions. changes in proportion to the fuel temperature. These sensors are to FQI PROBES give the fuel temperature of the different tanks on the ECAM Fuel A set of capacitive probes is installed in each fuel tank. Each probe page and also for fuel LO TEMP or HI TEMP warning activation. has a capacitance value which changes in proportion to the depth of fuel in the related tank. The FCMCs continuously measure the capacitance values of all the FQI probes. They then use each set of probes capacitance values to determine the quantity (volume) of fuel in the tank. COMPENSATORS The fuel compensators are installed near to the lowest point in the inner tanks with another in the center tank for A330-200 configuration only. The compensator probes operate only when they are fully immersed in fuel and have a capacitance, which is in proportion to the dielectric constant of the fuel. They are used for fuel permittivity determination. DENSITOMETERS One densitometer is installed near the lowest point of each inner tank. The densitometersare used by the FCMCs to determine the density G7508471 - G7UT0TU - FM28D3000000003 of the fuel. After having calculated the volumes of fuel using the FQI probes, the FCMCs are now able to calculate the weight of fuel in each tank TEMPERATURE SENSORS 6 temperature sensors interface with the FCMCs and are arranged as follows: - 1 fitted in the LH outer tank, - 1 fitted in each collector cell, - 1 fitted in the trim tank. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 38 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 38 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D3000000003 INDICATING - FQI PROBES... TEMPERATURE SENSORS CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 39 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 39 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK INDICATING D/O (3) - When the center tank low level sensor is dry, the FCMC stops the INDICATING (continued) operation of the center tank transfer pumps. - When the trim tank low level sensor is dry, the FCMC closes the FUEL LEVEL SENSING trim tank isolation valve to make sure the trim tank and the trim pipe Each FCMC uses fuel level sensing data coming from the following do not drain. sensors: One overflow sensor is installed in each surge tank. The overflow - High level sensors, sensor may become wet during refueling. In such a case the FCMC - Low level sensors, closes all inlet valves, the refuel isolation valve and triggers an ECAM - Overflow sensors, warning. - ETOPS sensors (optional). A wing overflow sensor becomes wet when there are 450 liters in the For each FCMC applicable level sensing area, one probe is connected surge tank. to FCMC 1 and the other to FCMC 2. FCMC 1 or 2 receives the Optionally, one ETOPS warning sensor can be fitted in each inner opposite FCMC level sensing by cross-wired discretes. tank. These sensors are installed at a height corresponding to a fuel Each level sensor is fitted with a thermistor. The FCMC measures the quantity that is sufficient for 180 minutes flying. When one of the difference in resistance of the thermistor to determine when the sensor ETOPS warning sensors becomes dry, the FCMC sends a FUEL is in the fuel or out of the fuel. ETOPS RESERVE / FOB BELOW 17T warning. All high level sensors and overflow sensors have a fail state "WET" whereas the low level sensors have a fail state "DRY" The high level sensors are installed by pairs in each tank. Each sensor of a pair sends signal to a different FCMC. When both high level sensors of a fuel tank become wet, the FCMC that is in control closes the related tank inlet valve. The high level sensors of the center tank (A330-200 only) are installed G7508471 - G7UT0TU - FM28D3000000003 at a different height. During refueling, when the lowest sensor becomes wet, the FCMC closes the center tank inlet restrictor valve. Then when the highest sensor becomes wet, the FCMC closes the center tank inlet valve. This permits to get a smooth end of refueling of the center tank. The low level sensors are fitted in each tank except in the outer tanks. Two sensors are installed in each inner tank, one sensor in the center tank (A330-200 only) and one sensor in the trim tank. They are used to control fuel operations and to trigger low level warnings. - When any inner tank low level sensor becomes dry, the FCMC stops the jettison operation, if selected. The inner tank low level quantity is 1600 kg (3520 lb). CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 40 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 40 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D3000000003 INDICATING - FUEL LEVEL SENSING CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 41 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 41 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK INDICATING D/O (3) INDICATING (continued) FCMC MEASUREMENT Both FCMCs receive: - fuel data from the different probes, - THS position from both Flight Control Data Concentrators (FCDCs), - aircraft attitude, acceleration and pitch and roll angles from the 3 Air Data and Inertial Reference Units (ADIRUs). With this data, each FCMC performs all fuel quantity and temperature measurements and indications. Each FCMC contains the COMmand, MONitor and integrity checker processors. Each processor concurrently computes fuel quantity and temperature measurements using different software and different information sources to provide reliable data. COM and MON processors compute usable fuel quantity in the tank using computed fuel surface attitude derived from FQI probe capacitance values and the fuel permittivity. They use the fuel volume calculation together with the density data to find the fuel mass (fuel quantity), which is more appropriate than volume. The data is then transmitted to the ECAM FUEL page and to the refuel panel indicator. The refuel panel indicator is slave to the FCMCs displaying the ARINC 429 received data. G7508471 - G7UT0TU - FM28D3000000003 The level sensing operates independently inside the FCMC. Each FCMC has an independent level sensing board interfacing with a maximum of 14 level sensing channels. Each FCMC uses all level sensing data for command computation and warning activation. For each FCMC applicable level sensing area, one sensor is connected to FCMC 1 and the other to FCMC 2. FCMC 1 (or 2) receives the opposite FCMC level sensing status by cross-wired discretes. The FUEL QUANTITIES menu enables to access the fuel quantities of any fuel tanks. The INPUT PARAMETERS menu gives access to the fuel permittivity, density and temperature data. CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 42 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 42 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D3000000003 INDICATING - FCMC MEASUREMENT CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 43 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 43 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D3000000003 INDICATING - FCMC MEASUREMENT CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 44 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 44 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL This Page Intentionally Left Blank G7508471 - G7UT0TU - FM28D3000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 45 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 45 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL FUEL TANK INDICATING D/O (3) INDICATING (continued) REFUEL/DEFUEL PANEL INDICATIONS The fuel quantity indicator of the Refuel/Defuel panel displays the quantity of fuel in each tank, the actual total fuel quantity in the aircraft, and the preselected fuel quantity used for automatic refueling. The high level lights come on blue when the related fuel tank high level sensors are wet. An amber overflow light comes on if the associated surge tank sensor becomes wet. Each light has a filament press-to-test facility that permits to check the integrity of the lamp. The HI-LEVEL TEST P/BSW is used to test the high level and overflow sensors and their associated circuits. When this P/BSW is pressed, the status of all high level lights and overflow lights is inverted. In addition, the fuel quantity indicator shows "8s", the CKPT and END lights come on. G7508471 - G7UT0TU - FM28D3000000003 CMQ - SA family to A330-200/300 - T1+T2 (Lvl 2&3) (RR Trent 700) FUEL TANK INDICATING D/O (3) Nov 20, 2008 28 - FUEL (US Units) Page 46 B1/B2_A330_DIFF_FR_A320 DVIATION TRAINING SERVICES 46 REV. 1 FOR TRAINING PURPOSES ONLY DATE: 01.06.2019  A330-200/300 TECHNICAL TRAINING MANUAL G7508471 - G7UT0TU - FM28D3000000003 INDICATING - REFUEL/DEFUEL PANEL INDICATIONS