# SDR AALA201711079003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2017
- Submitted: November 8, 2017
- Operation: Air carrier
- Aircraft: [N799AN](https://openairdocs.org/aircraft/N799AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30258
- Aircraft time: 66,632 hours, 8,425 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 10388
- Condition: Inoperative
- Location: Cabin
- Part time: 36,984 hours, 4,252 cycles
- 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/AALA201711079003

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE.  EMERGENCY EXIT LIGHTS BATTERY FAILED CAPACITY CHECK.  REMOVED AND REPLACED POWER SUPPLY AND BATTERY PACK (AALA201711079005).   OPERATIONAL CHECK GOOD.

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