TASK 24-20-00-810-859
Loss of the ECAM and EFIS Displays during Engine Start at IDG 2 Connection
1. Possible Causes
_______________
- IDG 2 (4000XU)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-21-51-000-040 Removal of the Integrated Drive Generator -IDG 1(2),(4000XU) AMM 24-21-51-400-040 Installation of the Integrated Drive Generator -IDG 1(2),(4000XU) AMM 71-00-00-710-003 Engine Automatic Start
3. Fault Confirmation
__________________
A. Test
(1) Start the engine 2 (Ref. AMM TASK 71-00-00-710-003).
(2) The fault is confirmed if during the engine start:
- the ECAM and EFIS display units go blank with a diagonal line for more than one second,
- and the IDG 2 is connected below 55% N2.
4. Fault Isolation
_______________
A. If the test confirms the fault:
- do a check of the resistance of the IDG 2 MPU coil between pin B/1 and pin B/2 (17.5 ohms plus or minus 3.5 ohms at 25 deg.C (77 deg.F)).
(1) If the resistance value is out of the specified limits:
- replace the IDG 2 (4000XU) (Ref. AMM TASK 24-21-51-000-040) and (Ref. AMM TASK 24-21-51-400-040).
B. Do the test given in Para. 3.A.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page A243
201-299, 301-399, Aug 01/05 CES
R **ON A/C 401-499,
R TASK 24-20-00-810-860
R Overcurrent of the GEN 1 Because of a Failure of the BTC 1 Control Circuit
R 1. Possible Causes_______________
R - GCU-1 (1XU1)
R - BTC-1 (11XU1)
R - wiring
R 2. Job Set-up Information______________________
R A. Referenced Information
R -------------------------------------------------------------------------------
R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R 24-20-00-810-888
R
R AMM 24-22-34-000-001
R AMM 24-22-34-400-001
R AMM 24-22-55-000-001
R AMM 24-22-55-400-002
R
R AMM 24-41-00-740-002
R ASM 24-22/02
R 3. Fault Confirmation
__________________ R A. Test
Failure of an Opposite Channel of the Generator 1
Channel
Removal of the GCU-1(2) (1XU1, 1XU2)
Installation of the GCU-1(2) (1XU1, 1XU2)
Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)
Installation of the Contactors (9XU1, 9XU2, 11XU1,
11XU2)
Operational Check of GAPCU via CFDS
R (1) Do the BITE test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).
R (a) If the BITE test gives the message TEST FAILED:
R - do the trouble shooting given in Para 4.A.
R (b) If the BITE test gives the message TEST PASSED:
R - do the trouble shooting given in Para 4.B. R 4. Fault Isolation
_______________
R A. If the BITE test gives the message TEST FAILED:
R - push the line key adjacent to the TEST FAILED message.
R (1) If the maintenance message GCU1 (1XU1) comes into view:
R - replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and (Ref.
R AMM TASK 24-22-34-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 401-499, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page A244
Aug 01/05 CES
