MD-11 Flight Crew Operations Manual
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Communications -
Description and Operation
Comm.10.4
• Alert cabin attendant station or ground maintenance of a call from the
flight crew.
• Alert one cabin attendant station of a call from another cabin attendant
station.
Switches (AFT ATTND, FWD ATTND, MID ATTND, OWING ATTND, and
ALL) on the forward overhead panel permit calling a selected cabin attendant
station pair or all cabin attendant stations simultaneously. Switches at each cabin
attendant station permit calling a selected cabin attendant station pair or the
cockpit. A button is installed at the external ground power receptacle to permit the
mechanic to call the cockpit.
A call from the cockpit to the cabin attendant station pair (L&R) station causes the
following:
• Actuation of a chime near the cabin attendant station pair being called.
• Illumination of a reset switch at the station being called.
• Illumination of the pink master call prisms in the cabin ceiling near the
cross aisles of the station being called.
A call from the cabin attendant station to the cockpit causes the following:
• Actuation of a call chime in the cockpit.
• Illumination of CALL on the ACP CAB MIC/CALL switch.
• Illumination of a light on the service interphone/call panel identifying the
calling station pair.
A call from a cabin attendant to another cabin attendant station pair causes the
following:
• Actuation of chime near the cabin attendant station being called.
• Illumination of a reset switch at the cabin attendant station being called.
• Illumination of the pink master call prisms in the cabin ceiling near the
cross aisles of the station being called.
A call from the ground power panel to the cockpit causes the following:
• Actuation of a chime in the cockpit.
• Illumination of MECH on the ACP MIC/MECH switch.
• Illumination of CALL on the service interphone/call panel MECH/CALL
light.
The call system can be reset from any station or the cockpit by pushing the CALL
RESET button. The system resets automatically when the handset is returned to
its hanger or a microphone is keyed on the appropriate interphone.
Passenger Address System
The PA system enables the flight crew and cabin attendants to address passengers
throughout the cabin and lavatories.
October 02, 2006
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