# SDR CALA2026030314263

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2026
- Submitted: March 3, 2026
- Operation: Air carrier
- Aircraft: [N66057](https://openairdocs.org/aircraft/N66057), registered now
- Make and model: Boeing 767424ER
- Aircraft serial: 29452
- Aircraft time: 93,701 hours, 13,136 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 766300G
- Part serial: 0069
- Condition: Faulted
- Location: Lt Generator
- Part time: 86,677 hours, 13,259 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026030314263

## Discrepancy

AFTER ENGINE START THE L GEN EICAS ILLUMINATED RAN CHECKLIST AND RESET L GEN SUCESSFULLY REMOVED AND REPLACED BOTH L GCU & BPCU REF AMM 24-22-02 & FIM 24-20-04. NO FAULTS FOUND AND OPS CHECK GOOD AFTER ENGINE RUN.

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