-
the emergency announcements are heard.
In the cabin at the first seatrow:
-
the door of the emergency oxygen container stays closed.
On the maintenance panel 50VU:
-
the On indicator light in the TMRRESET pushbutton switch comes on during the time the pushbutton is pushed.
On the overhead panel 21VU:
-
the SYS ON indicator light goes off.In the cabin:
-
the emergency announcements stop.
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ACTION RESULT -------------------------------------------------------------------------------
-remove the SWITCH OFF relay 8WR.
-install a wire between pin A2 and A3 of the relay socket.
19. At the vacuum source:
-slowly decrease and hold the pressure to 14800 ft. (4500 m) for more than 30 sec.
20. In the cabin at the first seatrow:
R R - after approx. 30 sec. close the door of the related emergency oxygen container.
21. At the vacuum source:
- slowly increase the pressure to 0 ft. (0 m).
22. On the maintenance panel 50VU:
- push the TMR RESET pushbutton switch.
In the cabin at the first seatrow:
-
the door of the related oxygencontainer opens at 14000 +0 -500 ft.(4260 +0 -150m).
On the overhead panel 21VU:
-
the SYS ON indicator light comes on. In the cabin:
-
the emergency announcements are heard.
In the cabin at the first seatrow:
-
the door of the emergency oxygen container stays closed.
On the maintenance panel 50VU:
-
the On indicator light in the TMRRESET pushbutton switch comes on during the time the pushbutton is pushed.
On the overhead panel 21VU:
-
the SYS ON indicator light goes off.
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
23. On the FWD Attendant Panel (FAP) 120RH:
-push the PRE REC ANN. STOP membrane switch.
24. At the electronic rack 103VU:
-remove the wire from pin A2 and A3 of the relay socket.
-install the SWITCH OFF relay 8WR.
25. At the vacuum source:
-slowly decrease and hold the pressure to 14800 ft. (4500 m) for more than 30 sec.
26. At the vacuum source:
-slowly increase the pressure to 0 ft. (0 m).
27. On the maintenance panel 50VU:
-push the TMR RESET pushbutton switch.
In the cabin:
-the emergency announcements stop.
In the cabin at the first seatrow:
-
the door of the related oxygencontainer opens at 14000 +0 -500 ft.(4260 +0 -150m).
On the overhead panel 21VU:
-
the SYS ON indicator light comes on. In the cabin:
-
the emergency announcements are heard.
On the maintenance panel 50VU:
-
the On indicator light in the TMRRESET pushbutton switch comes on during the time the pushbutton is pushed.
On the overhead panel 21VU:
-
the SYS ON indicator light goes off.
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
28. On the FWD Attendant Panel (FAP) 120RH:
-push the PRE REC ANN. STOP membrane switch.
29. On the circuit breaker panel 49VU:
-close circuit breaker 2WR.
- open circuit breaker 5WR and 6WR.
30. In the cabin at the first and second seatrow:
-close the doors of all related emergency oxygen containers.
31. On the overhead panel 21VU:
-push and hold the MASK MAN ON pushbutton switch for more than 6 sec.
-release the MASK MAN ON pushbutton switch.
In the cabin:
-the emergency announcements stop.
On the overhead panel 21VU:
-
the SYS ON indicator light comes on.
In the cabin:
-
the emergency announcements are heard.
In the cabin at the first and second seatrow:
-some of the doors of the emergency oxygen containers open immediately.
-after approx. 6 sec. the doors of the remaining emergency oxygen containers open.
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本文链接地址：A320飞机维护手册 AMM OXYGEN 氧气(124)
