(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
(c) On the panel 21VU, push the OXYGEN/CREW SUPPLY pushbutton switch (the OFF legend goes off).
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CES B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
C. Test
(1) On the ECAM control panel:
- push the DOOR key to get the DOOR/OXY page.
(2) Make sure that the OXY pressure indication is minimum on the DOOR/OXY page.
(3) Do an OXY high-pressure indication direct reading (Ref. AMM TASK 35-10-00-040-001).
(4) Make sure that the overboard discharge indicator is yellow.
4. Fault Isolation
_______________
A. If the oxygen pressure indication is the same on the SD and on the pressure gage with the overboard discharge indicator yellow:
- replace the CYLINDER-OXYGEN STORAGE (5750HM) (Ref. AMM TASK 35-11-41-000-001) and (Ref. AMM TASK 35-11-41-400-001) and replace the overboard discharge indicator (5756HM) (Ref. AMM TASK 35-13-22-920-001).
(1) If the oxygen pressure indication is different on the SD and on the pressure gage with the overboard discharge indicator yellow:
- replace the XMTR/PRESS REG-OXY (4HT) (Ref. AMM TASK 35-13-15-000-001) and (Ref. AMM TASK 35-13-15-400-001) and replace the overboard discharge indicator (5756HM) (Ref. AMM TASK 35-13-22-920-001).
B. Test
(1) Make sure that the OXY pressure indication is normal (more than 1500PSI) on the DOOR/OXY page.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) On the panel 21VU, release the OXYGEN/CREW SUPPLY pushbutton switch (the OFF legend comes on).
(2) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF. (Ref. AMM TASK 31-60-00-860-002)
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
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TASK 35-10-00-810-815
Failure of the Oxygen Flow Indicator
1. Possible Causes
_______________
- STOWAGE BOX-OXY MASK, CAPT (10RN1)
- STOWAGE BOX-OXY MASK, F/O (10RN2)
- STOWAGE BOX-OXY MASK, 3RD OCCPNT (10RN3)
- BOX ASSY-STOWAGE, 4TH OCCPNT (5774HM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 35-12-41-000-001 Removal of the Oxygen-Mask Stowage-Box
AMM 35-12-41-400-001 Installation of the Oxygen-Mask Stowage-Box
AMM 35-12-41-710-001 Operational Test of the Full Face/Quick Donning
R Oxygen Masks (5757HM,5758HM,5759HM,5760HM)
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the full-face/quick-donning oxygen masks (Ref. AMM TASK 35-12-41-710-001).
4. Fault Isolation
_______________
A. If during the operational test:
(1) The Captain oxygen flow-indicator is inoperative
- replace the STOWAGE BOX-OXY MASK, CAPT (10RN1) (Ref. AMM TASK 35-12-41-000-001) and (Ref. AMM TASK 35-12-41-400-001). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 氧气 OXYGEN(17)
