F  『
 E  C F M  E
 E  E
 E  56  E
 E  E 

R  B. Do the test given in Para. 3.A. 
R  (1) No additional maintenance action is required if the fault is not 
R  confirmed. 
R  (2) Repeat the fault isolation procedure if the fault continues. 
R

 E E May 01/99 E E ECES
E

 F 『
 E C F M E
 E E
 E 56 E
 E E

 TASK 77-20-00-810-809
 Loss of the T3 Thermocouple Signal - Engine 1 - Channel A
 1. Possible Causes
_______________

 - T3 thermocouple

 - CJ13 harness

 - HJ13 harness

 - ECU (4000KS)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 73-21-50-000-029 Removal of the CJ13 Harness
 AMM 73-21-50-000-046 Removal of the HJ13 Harness
 AMM 73-21-50-210-001 Visual Inspection of the Wiring Harness

R AMM 73-21-50-210-002 Visual Inspection of the Wiring Harnesses AMM 73-21-50-400-029 Installation of the CJ13 Harness AMM 73-21-50-400-046 Installation of the HJ13 Harness AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU) AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU) AMM 73-29-00-710-040 Operational Test of the FADEC on the Ground (with Engine non Motoring) AMM 77-23-10-000-001 Removal of the Compressor Discharge Temperature (T3) Sensor AMM 77-23-10-000-002 Removal of the Compressor Discharge Temperature (T3) Sensor AMM 77-23-10-400-001 Installation of the Compressor Discharge Temperature (T3) Sensor AMM 77-23-10-400-002 Installation of the Compressor Discharge Temperature (T3) Sensor
 3. Fault Confirmation
__________________
 A. Test

 (1) Do the operational test of the FADEC 1A on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
 F 『 EEFF : ALL E ∞∞77-20-00∞∞∞∞∞∞∞∞∞∞Page 215
 E E Nov 01/03 E E ECES
E

 F 『
 E C F M E
 E E
 E 56 E
 E E

 4. Fault Isolation
_______________

 A. The failure message is generated if channel A sensor signal is invalid or out of range.
 NOTE : If T3 sensor Part Number is 1348M21P01, P04 or P05, replace T3
____ sensor (Ref. AMM TASK 77-23-10-000-001) and (Ref. AMM TASK 77-23-10-400-001).
 (1) If the failure message T3 SNSR, J13, ECU is not confirmed:

 - no maintenance action is required.

 (2) If the failure message T3 SNSR, J13, ECU is not confirmed, but is repetitive:

 - visually examine the T3 thermocouple receptacle and the CJ13 R harness connector for damaged pins and contamination (Ref. AMM TASK R 73-21-50-210-002).
 (a) If harness connector or T3 thermocouple receptacle is damaged:

 - repair or replace as required.

 (b) If no damage is found:

 - visually examine the ECU (4000KS) receptacle and the HJ13 harness connector for damaged pins and contamination (Ref. AMM TASK 73-21-50-210-001).
 1 If harness connector or ECU receptacle is damaged:
_ - repair or replace as required.

 2 If no damage is found:
_

 - replace the T3 thermocouple (Ref. AMM TASK 77-23-10-000-002) and (Ref. AMM TASK 77-23-10-400-002).
 (c) If the fault continues during the subsequent flights:

 - replace the CJ13 harness (Ref. AMM TASK 73-21-50-000-029) and (Ref. AMM TASK 73-21-50-400-029).

 (d) If the fault continues during the subsequent flights:

 - replace the HJ13 harness (Ref. AMM TASK 73-21-50-000-046) and (Ref. AMM TASK 73-21-50-400-046).

 (e) If the fault continues during the subsequent flights:

 - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 (3) If the failure message T3 SNSR, J13, ECU is confirmed:
 - disconnect the two CJ13 connectors from the T3 thermocouple

 - visually examine the T3 thermocouple receptacle and the CJ13 harness connectors for damaged pins and contamination (Ref. AMM TASK 73-21-50-210-001).

 F 『 EEFF : ALL E ∞∞77-20-00∞∞∞∞∞∞∞∞∞∞Page 216
 E E Nov 01/03 E E ECES
E

 F 『
 E C F M E
 E E
 E 56 E
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 發動機指示(170)