# SDR AALA202203283602

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2022
- Submitted: March 28, 2022
- Operation: Air carrier
- Aircraft: [N718AN](https://openairdocs.org/aircraft/N718AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 41665
- Aircraft time: 32,771 hours, 3,835 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Zone 200 - Fuse
- 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/AALA202203283602

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: OVERHEAD FLIGHT CREW REST BACKUP LIGHTING BATTERY PACK M33118 FAILS TO HOLD CHARGE. REMOVED, REPLACED AND  PERFORMED OPERATIONAL TEST OF LIGHTING BATTERY PACK M33118 PER AMM 33-51-06-960-803.

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