# SDR SWAA2022110367381

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 2022
- Submitted: November 7, 2022
- Operation: Air carrier
- Aircraft: [N8509U](https://openairdocs.org/aircraft/N8509U), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36925
- Aircraft time: 20,183 hours, 9,620 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Zn 200 Fus Top
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022110367381

## Discrepancy

SUPPLEMENTAL INFORMATION: FWD 3 RT EMERGENCY LIGHTS ON OVERHEAD BINS INOP / [01] REPLACED M1676 BATTERY/CHARGER ASSEMBLY AND TESTED PER AMM 33-51-06-960-806. AFTER 30 MINUTES CHARGING; NO LIGHTS; SLAVED BATTERY FROM M1675 (SEE DEFECT TTG8Q00FVHN7) TO CONFIRM LIGHTS WORK WITH KNOWN GOOD BATTERY.;[02] REMOVED AND REPLACED M1676 BATTERY PACK AND OPS CHECKED PER AMM 33-51-06-960-805 CHECKED GOOD;[03] INSPECTION COMPLETE

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