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The flight deck crewmembers may make announcements using either a separate
PA hand microphone or by using any standard microphone and the respective
audio selector panel. Flight attendants make announcements using PA hand
microphones located at their stations. The attendants use the PA system to play
recorded music for passenger entertainment.
PA system use is prioritized. Flight deck announcements have first priority and
override all other uses. Flight attendant announcement override the music
system.
AUDIOSELECTOR
PANEL
Set Transmitter
Selector and Receiver
Switch for PA
PA SYSTEM
AMPLIFIER
SPEAKERS IN
PASSENGER
CABIN AND
LAVATORIES
HAND MIC
BOOM MIC
MASK MIC
CONTROL
STAND
ATTENDANT
STATIONS
(bypasses Audio Selector Panel)
37371678
COMMUNICATIONS
737 Sec. 6.5 Page 13
Flight Manual Continental Rev. 11/15/02 #41
Flight Interphone System
· Pilot to Pilot
· Pilot to Ground Personnel through FLIGHT jack on the External Power
Receptacle.
Service Interphone System
· Pilot to Attendant
· Attendant to Attendant
· Pilot and/or Attendant to Ground SERVICE jacks via Service Interphone
Switch located on the aft overhead panel.
Passenger Address System
· Hand mic, Boom mic or Mask mic through the flight deck Audio Selector
Panel
· Hand mic located on the Control Panel
· Hand mic – any Attendant station.
COMMUNICATIONS
Sec. 6.5 Page 14 737
Rev. 11/15/02 #41 Continental Flight Manual
Interphone And Passenger Address Controls
< SERVICE INTERPHONE Switch
OFF –
· External jacks are deactivated
· Communication between flight deck and flight attendants is still
possible.
ON – Adds external jacks to service interphone system.
= Service INTERPHONE Handset Jack
With microphone installed, used to communicate with flight attendant
stations:
· With SERVICE INTERPHONE switch ON, also used to communicate with
any external jack location
· Bypasses ACP.
COMMUNICATIONS
737 Sec. 6.5 Page 15
Flight Manual Continental Rev. 11/15/02 #41
> Passenger Address (PASS ADDRESS) Hand Microphone Jack
With microphone installed:
· Used to make PA announcements
· Bypasses ACPs.
? INTERPHONE FLIGHT Jack
Connects ground crew to flight interphone system.
@ Flight Deck / Attendant PA Hand Microphone
Used to make PA announcements.
A SERVICE INTERPHONE Jack
· Connects the ground crew to the Service Interphone System if the
SERVICE INTERPHONE Switch is ON.
· External jack around the aircraft.
COMMUNICATIONS
Sec. 6.5 Page 16 737
Rev. 11/15/02 #41 Continental Flight Manual
CALL SYSTEM
The call system is used as a means for various crewmembers to gain the
attention of other crewmembers and to indicate that interphone communication
is desired. Attention is gained through the use of lights and aural signals
(chimes or horn). The system can be activated from the flight deck, either flight
attendant station, or from the external power receptacle. Passengers may also
use the system to summon an attendant, through the use of individual call
switches at each seat.
The flight deck may be called by either flight attendant station or by the ground
crew. The ground crew may only be called by the flight deck. Flight attendants
may be called by the flight deck, the other attendant station, or by any passenger
seat or lavatory. Master call lights in the passenger cabin identify the source of
incoming calls to the attendants.
Call system chime signals are audible in the passenger cabin through the PA
system speakers. The PA speakers also provide an alerting chime signal
whenever the NO SMOKING or FASTEN SEAT BELT signs illuminate or extinguish.
LOCATION OF CALL
ORIGINATOR CALLED POSITION
VISUAL SIGNAL AT
CALLED POSITION
AURAL SIGNAL AT
CALLED POSITION
Flight Deck Attendants Pink Master Call
Lights
Two-Tone Chime
Flight Deck Ground Crew Horn In Nose Wheel
Well
Attendant Flight Deck Blue Flight Deck Call
Light
Single High-Tone
Chime
Attendant Attendants Pink Master Call
Lights
Two-Tone Chime
External Power
Receptacle
Flight Deck Blue Flight Deck Call
Light
Single High-Tone
Chime
Passenger Attendants Blue Master Call Light Single High-Tone
Chime
Lavatory Attendants Amber Master Call
Light
Single High-Tone
Chime
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737 FLIGHT MANUAL 737飞行手册3(90)
