4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 301-399, 401-499,
A. If the test gives the maintenance message DUCT TEMP SENSOR 26HQ:
- make sure that the avionics ventilation filter is not clogged. If necessary, replace it (Ref. AMM TASK 21-26-43-600-007).
(1) If the fault continues:
- 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).
(a) If the fault continues:
- do a check and repair the wiring between the AEVC (10HQ) and the duct temperature sensor (26HQ), pins AB/5D and pins A/C (Ref. ASM 21-26/03).
1 If the fault continues:
_
- replace the AEVC (10HQ) (Ref. AMM TASK 21-26-34-000-001) (Ref. AMM TASK 21-26-34-400-001).
**ON A/C 001-049, 101-149, 151-199, 201-299,
Post SB 21-1087 For A/C 001-049,101-105,
A. If the test gives the maintenance message DUCT TEMP SENSOR 26HQ:
- make sure that the avionics ventilation filter is not clogged. If necessary, replace the CARTRIDGE-AVNCS VENT FILTER (2082HM) (Ref. AMM TASK 21-26-43-920-001).
(1) If the fault continues:
- 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).
(a) If the fault continues:
- do a check and repair the wiring between the AEVC (10HQ) and the duct temperature sensor (26HQ), pin AB/5D and pin A/C (Ref. ASM 21-26/03).
1 If the fault continues:
_
- replace the AEVC (10HQ) (Ref. AMM TASK 21-26-34-000-001) (Ref. AMM TASK 21-26-34-400-001).
**ON A/C ALL
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 256
Aug 01/05 CES
TASK 21-26-00-810-818
Warning of the Duct Temperature Sensor Inoperative
1. Possible Causes
_______________
- AEVC (10HQ)
- SENSOR-DUCT TEMP, AVNCS VENT (26HQ)
- wiring between the AEVC (10HQ) and the duct temperature sensor (26HQ)
2. Job Set-up Information
______________________
A. Referenced Information
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REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 21-26-00-710-001 Operational Check of System via MCDU AMM 21-26-12-000-001 Removal of the Avionics Ventilation Duct Temperature Sensor (26HQ) AMM 21-26-12-400-001 Installation of the Avionics Ventilation Duct Temperature Sensor (26HQ) AMM 21-26-34-000-001 Removal of the Avionics Equipment Ventilation Computer (AEVC) (10HQ) AMM 21-26-34-400-001 Installation of the Avionics Equipment Ventilation Computer (AEVC) (10HQ) ASM 21-26/03
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).
4. Fault Isolation
_______________
A. If the test gives the maintenance message DUCT TEMP SENSOR 26HQ:
- 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).
(1) If the fault continues:
- do a check and repair the wiring between the AEVC (10HQ) and the duct temperature sensor (26HQ), pins AB/5D and pins A/C (Ref. ASM 21-26/03).
(a) If the fault continues:
- replace the AEVC (10HQ) (Ref. AMM TASK 21-26-34-000-001) and (Ref. AMM TASK 21-26-34-400-001).
「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 257
May 01/05R CES
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 258
May 01/05R
CES
TASK 21-26-00-810-819
Failure of the Skin Temperature Sensor
1. Possible Causes
_______________
- AEVC (10HQ)
- SENSOR-SKIN TEMP, AVNCS VENT (28HQ)
- wiring between the AEVC (10HQ) and the skin temperature sensor (28HQ)
2. Job Set-up Information
______________________
A. Referenced Information
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本文链接地址：A320 Trouble Shooting Manual 排故手册 AIR CONDITIONING 空调1(79)
