NOTE : Make a first estimate of the electrical damage, and de-energize
____ the applicable electrical power network (commercial/servicing/ galley).
「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 : 051-099, 106-149, 211-299, 301-399, ∞∞24-00-00∞∞∞∞∞∞∞∞∞∞Page 257
401-499, Aug 01/05 CES NOTE : It is not always easy to identify an electrical burning smell or
____ an air conditioning contamination from the engine or the APU. Refer to the applicable paragraph of this procedure.
(1) If a circuit breaker tripped:
- do this trouble shooting procedure (Ref. TASK 24-00-00-810-803).
(2) If no circuit breaker tripped:
(a) If there is an ECAM warning, message or local observation:
- refer to the applicable trouble shooting procedure.
(b) If there is no ECAM warning, message or local observation:
- do an inspection of the electrical circuits and related mechanical components for arcing, chafing or short circuit (Ref. ESPM 205200).
1 If there is damage:
_ - repair or replace the damaged components (Ref. ESPM 205300).
2 If there is no damage:
_ a If you smell oil (because of air conditioning
_
contamination):
- do this trouble shooting procedure (Ref. TASK 21-00-00-810-801).
b If you smell oil from the engine:
_
- do this trouble shooting procedure (Ref. TASK 71-00-00-810-802).
c If you smell fumes during the pre-conditioning with the
_
APU:
- do these trouble shooting procedures (Ref. TASK 26-17-00-810-804) and (Ref. TASK 49-00-00-810-921).
d If there is a smell and fumes in the cabin:
_
- do this trouble shooting procedure (Ref. TASK 26-15-00-810-804).
AC GENERATION - FAULT ISOLATION PROCEDURES
__________________________________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
TASK 24-20-00-810-801
Failure of the Generator Control Unit 1
1. Possible Causes
_______________
- GCU-1 (1XU1)
- sockets of the 400VC1
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific dynamometer
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R ESPM 204823 AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2) AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2) AMM 24-41-00-740-002 Operational Test of the Ground power Control Unit (GPCU) AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from Engine 1(2) AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power AMM 31-60-00-860-001 EIS Start Procedure AMM 31-60-00-860-002 EIS Stop Procedure AMM 71-00-00-710-003 Engine Automatic Start AMM 71-00-00-710-028 Engine Shutdown
R AWM 24-22-01
3. Fault Confirmation
__________________
A. Test
Not applicable.
NOTE : As the GEN 1 was set to OFF because of a true failure, the fault
____
confirmation is not necessary.
4. Fault Isolation
_______________
A. If the fault symptom is identified by the CFDS message GCU 1 and the upper ECAM DU warning GEN 1 FAULT:
- replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and (Ref. AMM TASK 24-22-34-400-001).
(1) If the fault continues:
R - do a pin retention check (Ref. ESPM 204823) of the sockets of the 400VC1 (Ref. AWM 24-22-01). Use a dynamometer, the CANNON value is
1.2 daN (2.7 lbf) minimum and the SOURIAU value is 2.8 daN (6.3 lbf) minimum, in relation to pin/socket type used.
B. Do this operational test to make sure that the system operates correctly.
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
(2) On the ELEC panel 35VU:
- push, release and push again the GEN 1 pushbutton switch (3XU1).
(3) Do the operational test of the GPCU (Ref. AMM TASK 24-41-00-740-002). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 1(96)
