# SDR SWAA2021121451967

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2021
- Submitted: December 14, 2021
- Operation: Air carrier
- Aircraft: [N8602F](https://openairdocs.org/aircraft/N8602F), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38110
- Aircraft time: 33,056 hours, 14,646 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Faulty
- Location: Overwing Exit
- Stage of operation: UK
- 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/SWAA2021121451967

## Discrepancy

INTERIOR OVERWING EXIT SIGNS ABOVE DOORS WILL NOT ILLUMINATE ; / [01] R&R?D BATTERY CHARGER AT STATION 565 RBL 68; NO FIX. REFERENCE AMM 33-51-06. TROUBLE SHOT DOWN TO BATTERY PACKS AT STA 565 RBL 68 AND STA 565 LBL 68. BOTH BATTERY PACKS ON EACH SIDE OF OVERWING EXITS ARE DEAD; CONFIRMED WITH A SLAVED IN BATTERY PACK FROM ANOTHER STATION. RESECURED SLAVED IN BATTERY PACK TO ORIGINAL POSITION.; [02] REPLACED BATTERY PACKS AT STA 565 RBL 68 AND LBL 68. OPS CHECK GOOD. REFERENCE AMM 33-51-06

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