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Questions and Answers
What is the primary purpose of a Master Call Light Panel?
What is the primary purpose of a Master Call Light Panel?
Where are Master Call Light panels typically located?
Where are Master Call Light panels typically located?
What is the color of the Master Call Light for an All Call (55) event?
What is the color of the Master Call Light for an All Call (55) event?
What happens to the cabin interphone call light when the receiving station handset is removed from the cradle?
What happens to the cabin interphone call light when the receiving station handset is removed from the cradle?
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What type of call causes the Master Call Light to flash?
What type of call causes the Master Call Light to flash?
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What is the purpose of the attendant station chime annunciation?
What is the purpose of the attendant station chime annunciation?
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What is the color of the Master Call Light for a Lavatory service call?
What is the color of the Master Call Light for a Lavatory service call?
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What happens to the row call light indication for a center seat group with an odd number of seats?
What happens to the row call light indication for a center seat group with an odd number of seats?
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What is the Master Call Light color for an Attendant All Call event?
What is the Master Call Light color for an Attendant All Call event?
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What type of chime is used for an Attendant to Attendant call?
What type of chime is used for an Attendant to Attendant call?
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What is the purpose of the Lavatory service call light on the outside lavatory door?
What is the purpose of the Lavatory service call light on the outside lavatory door?
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What happens to the Master Call Light for a Crew Rest Smoke event?
What happens to the Master Call Light for a Crew Rest Smoke event?
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What type of call is indicated by a steady blue Master Call Light?
What type of call is indicated by a steady blue Master Call Light?
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What is the purpose of the Master Call Light panel?
What is the purpose of the Master Call Light panel?
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What is the purpose of the attendant station chime annunciation?
What is the purpose of the attendant station chime annunciation?
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What is the Master Call Light color for a Lavatory smoke event?
What is the Master Call Light color for a Lavatory smoke event?
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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)
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Description
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.
