# SDR AALA202104029004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2021
- Submitted: April 3, 2021
- Operation: Air carrier
- Aircraft: [N783AN](https://openairdocs.org/aircraft/N783AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30004
- Aircraft time: 82,543 hours, 9,970 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 55736
- Condition: Inoperative
- Location: Emergency Lights
- 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/AALA202104029004

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: L4 EMERGENCY BATTERY PACK M33407 WILL NOT CHARGE. REPLACED POWER SUPPLY IAW AMM 33-51-06, OPS CHECK GOOD.

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