3. Fault Confirmation
__________________
A. Not applicable.
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-228, 301-302,
A. If the fault symptom is identified by the maintenance message FAN AIR V 9HA1 OR THRM 7170HM1 OR SENSE LINE:
-do a check of the indication of the bleed temperature on the lower ECAM display unit.
(1) If the indication of the bleed temperature is more than 218 deg.C
(424.40 deg.F):
-make sure that there are no leaks at the sense line between the fan air valve control-thermostat (7170HM1) and the fan air valve (9HA1).
(a) If the fault continues:
-replace the THERMOSTAT-FAN AIR VALVE CTL (7170HM1) (Ref. AMM TASK 36-11-43-000-001) and (Ref. AMM TASK 36-11-43-400-001).
1 -EFF : ALL
-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page A203
--May 01/05 ---CES - (2) If the fault continues:
-do a check and repair the wiring from the fan air valve to the BMC1, pin A/1 to pin AA/12A.
(a)
If the fault continues:
-do a check and repair the wiring between pin A/3 of the fan air valve and the ground terminal.
(b)
If the fault continues:
-replace the VALVE-FAN AIR, ENG1 (9HA1) (Ref. AMM TASK 36-11-54-000-001) and (Ref. AMM TASK 36-11-54-400-001).
R **ON A/C 106-149, 229-299, 303-399, 401-499,
A. If the fault symptom is identified by the maintenance message: THRM 7170HM1 OR FAN AIR VALVE 9HA1 OR SENSE LINE:
-do a check of the indication of the bleed temperature on the lower ECAM display unit.
(1)
If the indication of the bleed temperature is more than 218 deg.C
(424.40 deg.F):
-make sure that there are no leaks at the sense line between the fan air valve control thermostat (7170HM1) and the fan air valve (9HA1).
(a) If the fault continues:
-replace the THERMOSTAT-FAN AIR VALVE CTL (7170HM1) (Ref. AMM TASK 36-11-43-000-001) and (Ref. AMM TASK 36-11-43-400-001).
(2)
If the fault continues:
-do a check of the wiring (Ref. ASM 36-11/01) between: . pin A/1 of the engine 1 fan air valve (9HA1) and pin AA/12A of the BMC1 (1HA1) . pin A/3 of the engine 1 fan air valve and the ground.
(a)
If the wiring is not correct:
-repair the wiring.
(b)
If the wiring is correct:
-replace the VALVE-FAN AIR, ENG1 (9HA1) (Ref. AMM TASK 36-11-54-000-001) and (Ref. AMM TASK 36-11-54-400-001).
**ON A/C ALL
B. After the subsequent flight, make sure that the fault does not continue.
1 -EFF : ALL
-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page A204
--Aug 01/05 ---CES - Fan Air Valve of the Engine 2 Blocked in the Closed Position
1. Possible Causes
_______________
-THERMOSTAT-FAN AIR VALVE CTL (7170HM2)
-VALVE-FAN AIR, ENG2 (9HA2)
-
wiring from the fan air valve to the BMC2
-
wiring between pin A/3 of the fan air valve and the ground terminal
-
wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 36-11-43-000-001 Removal of the Fan Air Valve Control Thermostat (7170HM1, 7170HM2) AMM 36-11-43-400-001 Installation of the Fan Air Valve Control Thermostat
(7170HM1, 7170HM2)
AMM 36-11-54-000-001 Removal of the Fan Air Valve (9HA1,9HA2)
AMM 36-11-54-400-001 Installation of the Fan Air Valve (9HA1,9HA2)
ASM 36-11/02
3. Fault Confirmation
__________________
A. Not applicable.
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-228, 301-302,
A. If the fault symptom is identified by the maintenance message FAN AIR V 9HA2 OR THRM 7170HM2 OR SENSE LINE:
-do a check of the indication of the bleed temperature on the lower ECAM display unit.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 PNEUMATIC(54)
