(1) If the ECAM message WING A.-ICE OPEN ON GND is shown:
(a) Do the operational test of the wing anti-ice system. (Ref. AMM TASK 30-11-00-710-001):
- if the test is OK, no more maintenance work is necessary
- if the test is not OK, do the fault isolation procedure in Para. 4.A.
4. Fault Isolation
_______________
A. Procedure
(1) Replace the RELAY-GROUND TEST (4DL).
(a) Do the test in Para. 3.A.:
- if the fault continues do the next step.
NOTE : When the Anti-Ice Ground Test is done two or more times,
____ keep sufficient time between each test, to let the slats become cool.
(2) Remove the RELAY-GROUND TEST 4DL and RELAY-FAULT MONITOR C/O 6DL from their holders.
NOTE : When the RELAY-GROUND TEST 4DL is removed from its holder,
____ this will remove the ground from pin Z of the RELAY-FAULT MONITOR C/O 6DL.
(3) At pin Z of the Relay 6DL holder, do a check for continuity to ground:
- if there is no ground, do step (10)
- if there is a ground, do the next step.
(4) Remove each LGCIU from its ARINC tray (Ref. AMM TASK 32-31-71-000-001) in sequence until the ground goes from pin Z of relay 6DL:
- if the ground on pin Z stays when both the LGCIUs have been removed, do step (9)
- if the ground on pin Z goes when an LGCIU is removed, do the next step.
(5) Interchange and install the two LGCIUs (Ref. AMM TASK 32-31-71-400-001), and do steps (3) thru (4) again:
- if the ground on pin Z goes when the LGCIU is removed from the same system as in step (4), install the LGCIUs and relays 4DL and 6DL, and do step (7)
- if the ground on pin Z goes when the LGCIU is removed from the opposite system to that in step (4), install the LGCIUs and relays 4DL and 6DL, and do the next step.
「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 ∞∞30-11-00∞∞∞∞∞∞∞∞∞∞Page 213
Aug 01/05R
CES
(6) Replace the LGCIU-1 (5GA1) or LGCIU-2 (5GA2) in the system which had the ground in step (5), (Ref. AMM TASK 32-31-71-000-001) and (Ref. AMM TASK 32-31-71-400-001).
(a) Do the test in Para 3.A.:
- if the fault continues, do the next step.
(7) Adjust the applicable prox sensor PROX SNSR-L L/G EXT, SYS 1 (21GA) or PROX SNSR-R L/G EXT, SYS 2 (22GA) (Ref. AMM TASK 32-31-73-820-002), related to the LGCIU which gave the ground:
- for LGCIU1 adjust proximity sensor 21GA
- for LGCIU2 adjust proximity sensor 22GA.
(a) Do the test in Para. 3.A.:
- if the fault continues, do the next step.
(8) Replace the unserviceable proximity sensor (Ref. AMM TASK 32-31-73-000-001) and (Ref. AMM TASK 32-31-73-400-001).
(a) Do the test in Para. 3.A.:
- if the fault continues, do the next step.
(9) Do a check and repair as necessary the aircraft wiring (Ref. ASM 30-11/01) between pin Z of relay 6DL and:
- the RELAY-GROUND TEST 4DL
- the RELAY-ANTI ICE VALVE CONTROL 5DL
- the LGCIU1 5GA1
- the LGCIU2 5GA2
(a) Do the test in Para. 3.A.:
- if the fault continues, do the next step.
(10) Replace the RELAY-FAULT MONITOR C/O (6DL).
(a) Do the test in Para. 3.A.
「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 ∞∞30-11-00∞∞∞∞∞∞∞∞∞∞Page 214
Aug 01/05R
CES Wing Anti-Ice (Wing) Circuit Breaker 2DL Tripped
WARNING : DO NOT TOUCH THE ANTI-ICE DUCTS UNTIL THEY ARE COOL. THE TEMPERATURE
_______
OF THE DUCTS STAYS HIGH FOR SOME TIME AFTER THE ENGINE STOPS.
1. Possible Causes
_______________
- ANTI ICE/WING/CTL (2DL)
- aircraft wiring
- Diode 1160VD
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24410086100200
ASM 30-11/01
TSM 30-11-00 P.Block 301 WING ICE PROTECTION
3. Fault Confirmation
__________________
A. Test
(1) Energize the aircraft electrical circuits (Ref. AMM 24410086100200), if the FAULT indicator light on the P/BSW (3DL) comes on, or the C/B ANTI ICE/WING/CTL (2DL) trips, do the fault isolation.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 除冰和排雨(20)
