- replace the SENSOR - DUCT TEMP AVNCS VENT (26HQ) (Ref. AMM TASK 21-26-12-000-001) and (Ref. AMM TASK 21-26-12-400-001).
**ON A/C ALL
B. Test
(1) On the panel 22VU, push the VENTILATION/BLOWER pushbutton switch (13HQ) (the OVRD legend goes off).
(2) Do the operational test of the override function (Ref. AMM TASK 21-26-00-710-002) .
「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 ∞∞21-26-00∞∞∞∞∞∞∞∞∞∞Page 272
May 01/05R
CES TASK 21-26-00-810-829
Failure of one or more valves or of the AEVC
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-26-00-810-801 Loss of the Automatic Control and Monitoring of the
Valves and Fans 21-26-00-810-803 Failure of the Skin Air-Inlet Valve 21-26-00-810-804 Failure of the Skin Air-Outlet Valve 21-26-00-810-805 Failure of the Conditioned Air-Inlet Valve 21-26-00-810-806 Failure of the Skin Exchanger-Inlet Bypass Valve 21-26-00-810-807 Failure of the Skin Exchanger Isolation-Valve 21-26-00-810-813 Failure of the AEVC AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 21-26-00-710-009 Operational Test to Read the CFDS for LAST LEG REPORT
of the AEVC
AMM 21-26-41-210-001 Detailed Inspection of Check Valve Flappers for
Condition and Operation
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the avionics equipment ventilation from the Multipurpose Control and Display Unit (MCDU) (Ref. AMM TASK 21-26-00-710-001).
(2) Read the LAST LEG REPORT (Ref. AMM TASK 21-26-00-710-009).
4. Fault Isolation
_______________
A. Possible maintenance messages (one or more of these messages)
SKIN AIR INLET V 15HQ
SKIN AIR OUTLET V 22HQ
COND AIR INLET V 21HQ
INLET BYPASS V 16HQ
ISOL V 24HQ
AEVC
associated with the ECAM warning VENT AVNCS SYS FAULT.
NOTE : The ECAM warnings VENT BLOWER FAULT and VENT EXTRACT FAULT will
____ possibly not come into view before or after engine operation. But it is possible that the mechanic call horn will operate.
May 01/05R CES
(1) Make sure that the avionics ventilation check valve (2140HM) (if installed) operates correctly (Ref. AMM TASK 21-26-41-210-001).
(2) If the test gives the maintenance message SKIN AIR OUTLET V 22HQ, do the procedure (Ref. TASK 21-26-00-810-804).
(3) If the fault continues or if the test gives the maintenance message ISOL V 24HQ, do the procedure (Ref. TASK 21-26-00-810-807).
(4) If the fault continues or if the test gives the maintenance message SKIN AIR INLET V 15HQ, do the procedure (Ref. TASK 21-26-00-810-803).
(5) If the fault continues or if the test gives the maintenance message COND AIR INLET V 21HQ, do the procedure (Ref. TASK 21-26-00-810-805).
(6) If the fault continues or if the test gives the maintenance message INLET BYPASS V 16HQ, do the procedure (Ref. TASK 21-26-00-810-806).
(7) If the fault continues or if the test gives the maintenance message AEVC, do the procedures (Ref. TASK 21-26-00-810-813) and (Ref. TASK 21-26-00-810-801).
B. Do the operational test given in Para. 3.
「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 ∞∞21-26-00∞∞∞∞∞∞∞∞∞∞Page 274
May 01/05R
CES
TASK 21-26-00-810-830
Failure of the Skin Air Valve
1. Possible Causes
_______________
- VALVE-SKIN AIR INLET, AVNCS VENT (15HQ)
- VALVE-SKIN AIR OUTLET, AVNCS VENT (22HQ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 21-26-00-710-009 Operational Test to Read the CFDS for LAST LEG REPORT of the AEVC AMM 21-26-52-000-001 Removal of the Avionics Ventilation Skin Air Inlet Valve (15HQ) AMM 21-26-52-400-001 Installation of the Avionics Ventilation Skin Air
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