- Difficulty date
- January 7, 2022
- Submitted
- January 11, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41189
- Aircraft time
- 34,073 hours, 10,945 cycles
- Part
- Idg
- Part number
- 761574B
- Part serial
- AAAH007586
- Condition
- Faulty
- Location
- #1 Engine
- Part time
- 40,889 hours, 12,076 cycles
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START, #1 ENGINE GENERATOR WOULD NOT ENGAGE. GROUNDED - YES. GCU BITE CHECK C/O REF B737-900 FIM 24-21 TASK 801. PRIOR TO TEST GCU NO. 1 SHOWED IDG FAULT. TEST C/O SATIS - GCU BITE CHECK PASS. NO. 1 IDG RECONNECTED FOR IDG FAULT FOR GCU 1 FIM. REF FIM 24-21 TASK 805. IDG FAULT CONFIRMED. REMOVED AND REPLACED #1 IDG REF B737-900 AMM 24-11-11. OPS AND LEAK CHECK GOOD REF AMM 24-11-00. GROUND VERIFICATION COMPLETE.