# SDR FDEA202509011585

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2025
- Submitted: September 2, 2025
- Operation: Air carrier
- Aircraft: [N840FD](https://openairdocs.org/aircraft/N840FD), registered now
- Make and model: Boeing 777F
- Registry model: [Boeing 777F](https://openairdocs.org/model/boeing-777f) (OpenAirDocs)
- Aircraft serial: 39682
- Aircraft time: 54,486 hours, 9,722 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Bulb
- Part number: P78749001
- Condition: Failed
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202509011585

## Discrepancy

DOOR 1 L/H EXTERIOR EMERGENCY LIGHT INOP.   FILAMENT REPLACED AND OPS CHECKED IAW AMM   33-51-04-02-0.

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