# SDR AALA202510072788

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2025
- Submitted: October 7, 2025
- Operation: Air carrier
- Aircraft: [N724AN](https://openairdocs.org/aircraft/N724AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31548
- Aircraft time: 48,173 hours, 5,609 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71701001
- Condition: No Test
- Location: Zone 800
- 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/AALA202510072788

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DOOR 5R AFT BATTERY PACK FAILED 15 MIN TEST. MAINTENANCE REPLACED EMERGENCY LIGHTING BATTERY PACK AT DOOR 5R AFT IAW AMM 33-51-06.

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