# SDR CALA2025041803984

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2025
- Submitted: April 21, 2025
- Operation: Air carrier
- Aircraft: [N216UA](https://openairdocs.org/aircraft/N216UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30549
- Aircraft time: 94,223 hours, 11,313 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Condition: Faulted
- Location: Zone 400
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025041803984

## Discrepancy

EXPERIENCING A DIVERSION OR AIR TURN BACK DUE TO A MECHANICAL REASON. REPLACED IDG, GCU AND WIRING CHECKS AND HIGH POWER RUNS  WITH OPS CHECKS OK.    CONFIRMATION FLIGHT TO BE ACCOMPLISHED

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