REFERENCE DESIGNATION
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AMM 35-13-15-400-001 Installation of the Oxygen Pressure
Regulator/Transmitter (4HT)
3. Fault Confirmation
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A. Job Set Up
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) R (Ref. AMM TASK 31-60-00-860-001) R
R (c) Remove the oxygen-mask stowage box (Ref. AMM TASK 35-12-41-000-R 001).
B. Make sure that this(these) circuit breaker(s) is(are) closed:
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PANEL DESIGNATION IDENT. LOCATION
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49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
C. Test R
R (1) Make sure that all the masks are not supplied with oxygen.
R (2) On the OXYGEN section of the overhead panel 21VU, push the CREW
R SUPPLY pushbutton switch (the OFF legend comes on).
R (3) Close the valve of the oxygen-cylinder valve assembly.
R (4) On the ECAM control panel:
R - push the DOOR key to get the DOOR/OXY page.
R (5) Do a check of the oxygen pressure indication.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞35-10-00∞∞∞∞∞∞∞∞∞∞Page 223
Nov 01/02 CES
4. Fault Isolation
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R A. If the low pressure indication comes into view on the ECAM System Display
R in less than 20 minutes:
R (1) Do a leak test of the low pressure circuit with the SPECIAL MATERIALS
R (Material No. 05-004).
R (a) If leaks are found:
R - replace the damaged components of the low pressure circuit.
R (b) If leaks are not found:
R - refer to Para. C.
R
R B. If the low pressure indication does not come into view on the ECAM SD,
R but the pressure value decreases:
R (1) Do a leak test of the high pressure circuit with the SPECIAL
R MATERIALS (Material No. 05-004).
R (a) If leaks are found:
R - replace the damaged components of the high pressure circuit.
R (b) If leaks are not found:
R - refer to Para. C.
R C. If the fault continues:
R (1) If the oxygen pressure indication is the same on the SD and on the
R pressure gage:
R - make sure that the oxygen cylinder and the connection are in the
R correct condition.
R If not:
R (a) Replace the CYLINDER-OXYGEN STORAGE (5750HM) (Ref. AMM TASK 35-R 11-41-000-001) and (Ref. AMM TASK 35-11-41-400-001).
R (2) If the oxygen pressure indication is different on the SD and on the
R pressure gage:
R - make sure that the pressure regulator/transmitter and the
R connection are in the correct condition.
R If not:
R (a) Replace the XMTR/PRESS REG-OXY (4HT) (Ref. AMM TASK 35-13-15-000-R 001) and (Ref. AMM TASK 35-13-15-400-001).
R D. Test
R (1) Make sure that the OXY pressure indication is sufficient for the
R scheduled flight.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞35-10-00∞∞∞∞∞∞∞∞∞∞Page 224
Nov 01/02 CES
5. Close-up________
A. Put the aircraft back to its initial configuration.
R (1) Install the oxygen-mask stowage box (Ref. AMM TASK 35-12-41-400-001).
R R (2) On the OXYGEN section of the overhead panel 21VU, release the CREW SUPPLY pushbutton switch (the OFF legend goes off).
R (3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF. (Ref. AMM TASK 31-60-00-860-002).
R (4) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
TASK 35-10-00-810-814
Fast Loss of Crew Oxygen with Overboard Discharge Indicator Yellow
1. Possible Causes
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- CYLINDER-OXYGEN STORAGE (5750HM)
- XMTR/PRESS REG-OXY (4HT)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
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