16 Questions
What is the primary purpose of a Master Call Light Panel?
To provide cabin crew with a visual indication of a call or event requiring attention
Where are Master Call Light panels typically located?
Near cabin crew stations and some galleys
What is the color of the Master Call Light for an All Call (55) event?
Pink
What happens to the cabin interphone call light when the receiving station handset is removed from the cradle?
It extinguishes
What type of call causes the Master Call Light to flash?
Crew Rest Smoke
What is the purpose of the attendant station chime annunciation?
To serve as a call indicator at the receiving location
What is the color of the Master Call Light for a Lavatory service call?
Amber
What happens to the row call light indication for a center seat group with an odd number of seats?
It is shown on the left aisle seat
What is the Master Call Light color for an Attendant All Call event?
Pink
What type of chime is used for an Attendant to Attendant call?
Hi/Lo Chime
What is the purpose of the Lavatory service call light on the outside lavatory door?
To indicate a lavatory service call
What happens to the Master Call Light for a Crew Rest Smoke event?
It flashes amber
What type of call is indicated by a steady blue Master Call Light?
Passenger service call
What is the purpose of the Master Call Light panel?
To provide a visual indication of calls initiated or events requiring attention
What is the purpose of the attendant station chime annunciation?
To provide an audible indication of calls initiated or events requiring attention
What is the Master Call Light color for a Lavatory smoke event?
Amber
Study Notes
Master Call Light Panel
- Provides cabin crew with visual indication of initiated calls or events requiring attention
- Located throughout the cabin near cabin crew stations and some galleys
Call Initiation
- Calls can initiate from flight deck, cabin crew stations, passenger seats, or lavatories
Call Indicators
- Cabin interphone call lights and attendant station chime annunciations used as call indicators at receiving location
- Some call types cause call light to flash
- Cabin interphone crew call light extinguishes when receiving station handset is removed from cradle
Master Call Light and Chime Definitions
- All Call (55): pink light (flash) with Hi/Lo Chime
- Attendant All Call (54): pink light (flash) with Hi/Lo Chime
- Attendant to Attendant: pink light (steady) with Hi/Lo Chime
- Crew Rest Smoke: amber light (flash) with Hi/Lo Chime (continuous)
- Attendant Alert (Waste Tank Full or Inoperative): no light or chime
- Lavatory Service Call: amber light (steady) with Hi Chime
- Lavatory Smoke: amber light (flash) with Hi/Lo Chime (continuous)
- Passenger Service Call: blue light (steady) with Hi Chime
Call Light Illumination
- Amber Master call light (MCL) illuminates:
- Steady: Lavatory service call
- Flash: Lavatory smoke
- Blue attendant call light illuminates:
- At Master Call Light panel (MCL)
- At Passenger service unit (PSU)
Master Call Light Panel
- Provides cabin crew with visual indication of initiated calls or events requiring attention
- Located throughout the cabin near cabin crew stations and some galleys
Call Initiation
- Calls can initiate from flight deck, cabin crew stations, passenger seats, or lavatories
Call Indicators
- Cabin interphone call lights and attendant station chime annunciations used as call indicators at receiving location
- Some call types cause call light to flash
- Cabin interphone crew call light extinguishes when receiving station handset is removed from cradle
Master Call Light and Chime Definitions
- All Call (55): pink light (flash) with Hi/Lo Chime
- Attendant All Call (54): pink light (flash) with Hi/Lo Chime
- Attendant to Attendant: pink light (steady) with Hi/Lo Chime
- Crew Rest Smoke: amber light (flash) with Hi/Lo Chime (continuous)
- Attendant Alert (Waste Tank Full or Inoperative): no light or chime
- Lavatory Service Call: amber light (steady) with Hi Chime
- Lavatory Smoke: amber light (flash) with Hi/Lo Chime (continuous)
- Passenger Service Call: blue light (steady) with Hi Chime
Call Light Illumination
- Amber Master call light (MCL) illuminates:
- Steady: Lavatory service call
- Flash: Lavatory smoke
- Blue attendant call light illuminates:
- At Master Call Light panel (MCL)
- At Passenger service unit (PSU)
Master Call Light panels are used in aircraft cabins to provide visual indications of calls or events requiring attention. They are typically located near cabin crew stations and galleys.
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