# SDR ASAA2025111162250

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2025
- Submitted: November 13, 2025
- Operation: Air carrier
- Aircraft: [N960AK](https://openairdocs.org/aircraft/N960AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44092
- Aircraft time: 10,513 hours, 3,054 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- Location: Zone 200
- 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/ASAA2025111162250

## Discrepancy

REF TC 33-055-00. DURING EMER LTS BATTERY CAP CHECK THE FOLLOWING LTS EXTINGUISHED BEFORE 15 MINUTES: AFT CEILING PNL AISLE LT, AFT ENTRY EXIT LOCATOR, AFT LEFT OVERDOOR EXIT LT, & AFT LEFT ESCAPE SLIDE LT. GROUNDED - YES. REPLACED BATTERY PACK ON PWR SUPPLY MODULE M1673, OPS CHECK OK. REF WDM 33-51-14-2 & AMM 33-51-06.

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