On the overhead panel 21VU:
-
the SYS ON indicator light goes off.
In the cabin:
-
the emergency announcements stop.
**ON A/C 052-055, 057-057,
Subtask 35-23-00-720-054-B
C. Functional test of automatic mask release NOTE : The prerecorded announcements are normally established by the
____ operator in accordance with the PRAM-Vendor. You can hear the emergency announcement only if it is recorded.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1.
On the circuit breaker panel 49VU:
- open circuit breaker 2WR and 3WR:
2.
On the overhead panel 21VU:
-lift the switch guard and push and hold the MASK MAN ON pushbutton switch for more than 30 sec.
-release the MASK MAN ON
pushbutton switch.
3.
On the maintenance panel 50VU:
On the overhead panel 21VU:
-the SYS ON indicator light comes on.
In the cabin:
-all doors of the emergency oxygen containers open.
-the emergency announcements are heard.
On the maintenance panel 50VU:
-after approx. 30 sec. the FAULT indicator light in the TMR RESET pushbutton switch comes on.
-the FAULT indicator light in the TMRRESET pushbutton switch goes off.
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
-push the TMR RESET pushbutton switch.
4. On the FWD Attendant Panel (FAP) 120RH:
-push the PRE REC ANN. STOP membrane switch.
5. In the cabin at the first two seatrows:
-close the doors of all related emergency oxygen containers.
6. On the overhead panel 21VU:
-push the AHS ON pushbutton switch.
7. At the vacuum source:
-
slowly decrease the pressure to 16800 ft. (5120 m)
-
slowly increase the pressure to 0 ft. (0 m).
-
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.
On the overhead panel 21VU:
-
the ON legend in the AHS ONpushbutton switch comes on.
In the cabin at the first two seatrows:
-
the doors of the respective oxygencontainers open at 16000 +0 -500 ft. (4870 +0 -150m).
On the overhead panel 21VU:
-
the SYS ON indicator light comes on. In the cabin:
-
the emergency announcements are heard.
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
8. On the maintenance panel 50VU: On the maintenance panel 50VU:
-push the TMR RESET pushbutton switch.
9. On the FWD Attendant Panel (FAP) 120RH:
-push the PRE REC ANN. STOP membrane switch.
10. On the overhead panel 21VU:
-push to reset the AHS ON pushbutton switch.
11. At the electronic rack 103VU:
-remove the SWITCH OFF relay 9WR.
-install a wire between pin A2 and A3 of the relay socket.
12. In the cabin at the first seatrow:
-close the door of one emergency oxygen container.
13. At the vacuum source:
-slowly decrease and hold the pressure to 14800 ft. (4500 m) for more than 30 sec.
-
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.
On the overhead panel 21VU:
-
the ON legend in the AHS ONpushbutton switch goes off.
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:
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
14. In the cabin at the first
seatrow:
R - after approx. 30 sec. close R the door of the related emergency oxygen container.
15. At the vacuum source:
-slowly increase the pressure to 0 ft. (0 m).
16. On the maintenance panel 50VU:
-push the TMR RESET pushbutton switch.
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本文链接地址：A320飞机维护手册 AMM OXYGEN 氧气(123)
