(2) Different from the value on the SD, on the DOOR/OXY page.

 - replace the XMTR/PRESS REG-OXY (4HT) (Ref. AMM TASK 35-13-15-000-001) and (Ref. AMM TASK 35-13-15-400-001).
 (a) If the fault continues:
 - replace the CYLINDER-OXYGEN STORAGE (5750HM) (Ref. AMM TASK 35-11-41-000-001) and (Ref. AMM TASK 35-11-41-400-001).
 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 ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF. (Ref. AMM TASK 31-60-00-860-002).

 (2) De-energize the aircraft electrical circuits
 (Ref. AMM TASK 24-41-00-862-002).

 TASK 35-10-00-810-812

 Flap Door of the Mask Stowage-Box Inoperative
 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
R AMM 35-12-41-200-001 Detailed Inspection of Oxygen Masks (out of box) with
R Harness Inflated AMM 35-12-41-400-001 Installation of the Oxygen-Mask Stowage-Box
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the visual inspection of the flight crew oxygen mask (out of box) (Ref. AMM TASK 35-12-41-200-001).
 4. Fault Isolation
_______________
 A. If during the inspection:
 (1) The flap door of the Captain mask stowage-box is deteriorated or 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).

 (2) The flap door of the First Officer mask stowage-box is deteriorated or inoperative:

 - replace the STOWAGE BOX-OXY MASK, F/O (10RN2) (Ref. AMM TASK 35-12-41-000-001) and (Ref. AMM TASK 35-12-41-400-001).

 (3) The flap door of the Third Occupant mask stowage-box is deteriorated or inoperative:

 - replace the STOWAGE BOX-OXY MASK, 3RD OCCPNT (10RN3) (Ref. AMM TASK 35-12-41-000-001) and (Ref. AMM TASK 35-12-41-400-001).

 (4) The flap door of the Fourth Occupant mask stowage-box is deteriorated or inoperative:

 - replace the BOX ASSY-STOWAGE, 4TH OCCPNT (5774HM) (Ref. AMM TASK 35-12-41-000-001) and (Ref. AMM TASK 35-12-41-400-001).
 B. Do the test given in Para. 3.A.

 TASK 35-10-00-810-813
 Fast Loss of Crew Oxygen

R  WARNING : KEEP ALL HYDROCARBONS (FUELS, LUBRICANTS, ETC.) AWAY FROM ALL SOURCE
_______ R OF OXYGEN. OXYGEN BECOMES EXPLOSIVE WHEN IT TOUCHES HYDROCARBONS.
R  WARNING : CLEAN THE TOOLS AND MAKE SURE YOUR HANDS ARE CLEAN TO PREVENT
_______ R CONTAMINATION OF THE OXYGEN SYSTEM.
R  CAUTION : PUT DRY, CLEAN, METAL OR PLASTIC PLUGS ON ALL PIPES OR UNITS REMOVED
_______ R TEMPORARILY. PUT EACH PIPE OR UNIT IN A SEALED VINYL BAG.
 1. Possible Causes
_______________
 - CYLINDER-OXYGEN STORAGE (5750HM)
 - XMTR/PRESS REG-OXY (4HT) R - low pressure circuit R - high pressure circuit
 2. Job Set-up Information
______________________
R A. Consumable Materials

R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R Material No. 05-004 USA MIL-L-25567 TYPE I
R OXYGEN LEAK DETECTOR (Ref. 20-31-00)

R B. Referenced Information

 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
AMM 24-41-00-861-002
AMM 24-41-00-862-002
R  AMM 31-60-00-860-001 AMM 31-60-00-860-002
R AMM 35-11-41-000-001 AMM 35-11-41-400-001
R AMM 35-12-41-000-001 R AMM 35-12-41-400-001 AMM 35-13-15-000-001
Energize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External Power EIS Start ProcedureEIS Stop Procedure
Removal of the Crew Oxygen-Storage Cylinder (5750HM)Installation of the Crew Oxygen-Storage Cylinder (5750HM) Removal of the Oxygen-Mask Stowage-Box Installation of the Oxygen-Mask Stowage-BoxRemoval of the Oxygen Pressure Regulator/Transmitter (4HT) -------------------------------------------------------------------------------
　
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