# SDR FDEA202610231666

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2026
- Submitted: October 23, 2026
- Operation: Air carrier
- Aircraft: [N879FD](https://openairdocs.org/aircraft/N879FD), registered now
- Make and model: Boeing 777F
- Registry model: [Boeing 777F](https://openairdocs.org/model/boeing-777f) (OpenAirDocs)
- Aircraft serial: 40685
- Aircraft time: 29,687 hours, 5,130 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71701100
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202610231666

## Discrepancy

FOUND EMERGENCY LIGHT INOP. CARRIED OUT WIRING CHECK PER B777 FIM 33-51-00-2 REV 108.0 & WDM 33-51-13 REV 72.0 FOUND   SATISFACTORY. REMOVED AND REPLACED LH & RH BATTERY PACK AND CARRIED OUT   INSTALLATION TEST PER B777 FIM 33-51-00-2 REV 108.0 & B777 AMM 33-51-06-2 REV 108.0 FOUND   SATISFACTORY. THIS IS A MINOR REPAIR PER GMM 6-2-100.

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