# SDR AALA202311208841

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2023
- Submitted: November 20, 2023
- Operation: Air carrier
- Aircraft: [N783AN](https://openairdocs.org/aircraft/N783AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30004
- Aircraft time: 911,720 hours, 11,362 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701001
- Condition: No Test
- Location: Zone 200 - Fuse
- 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/AALA202311208841

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE:  EMERGENCY BATTERY PACK (M33424) FAILED DEEP CYCLE TEST AT L1 ENTRY DOOR.  MAINTENANCE REPLACED EMERGENCY BATTERY PACK ASSY AT L1 (M33424) ENTRY DOOR IAW B777-2 AMM 33-51-06.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.