# SDR ABXA202512264355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2025
- Submitted: December 26, 2025
- Operation: Air carrier
- Aircraft: [N390CM](https://openairdocs.org/aircraft/N390CM), registered now
- Make and model: Boeing 767381
- Aircraft serial: 32973
- Aircraft time: 59,013 hours, 25,764 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Generator
- Part number: 6229436101
- Part serial: 3660
- Condition: Defective
- Location: Left
- Part time: 75,315 hours, 44,433 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA202512264355

## Discrepancy

DURING TAXI, LEFT S/G FAILED AFTER ENGINE START. RAN QRH. ALSO OCURRED FROM GROUND POWER TO APU.  AIRCRAFT RETURNED TO BLOCKS. (BTB).  DEFERRED LT S/G IAW MEL 34-22-5.  REMOVED AND REPLACED LT SYMBOL GENERATOR.  OPS CHECK GOOD IAW B767 AMM 34-22-01. DI CLEARED.  A/C REMAINS ETOPS 180.  AIRCRAFT RETURNED TO SERVICE.

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