# SDR AALA202102159019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2021
- Submitted: February 15, 2021
- Operation: Air carrier
- Aircraft: [N731AN](https://openairdocs.org/aircraft/N731AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 33523
- Aircraft time: 25,377 hours, 2,802 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Battery
- Part number: 285W0955102
- Condition: No Test
- Location: Pax Door
- 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/AALA202102159019

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: BATTERY PACK AT PASSENGER ENTRY DOOR-3 (OVERHEAD PANEL) FAILS OPERATIONAL CHECK LEFT HAND. REMOVED, REPLACED AND PERFORMED SATISFACTORY TEST OF LEFT PASSENGER ENTRY DOOR 3 (OVERHEAD PANEL) OFF WING SYSTEM BACKUP BATTERY PER TC 72C80052020 AND AMM 52-12-24.

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