# SDR SWAA2021121351405

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2021
- Submitted: December 13, 2021
- Operation: Air carrier
- Aircraft: [N8641B](https://openairdocs.org/aircraft/N8641B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 60085
- Aircraft time: 25,417 hours, 11,540 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Cabin
- 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/SWAA2021121351405

## Discrepancy

2 INTERNAL AND 2 EXTERNAL EMERGENCY LIGHTS ON THE RIGHT SIDE OF THE AIRCRAFT AFT OF THE WING DO NOT COME ON DURING THE TEST. ; / [01] REMOVED AND REPLACED EMERGENCY LIGHTING BATTERY AT STATION 727C IAW AMM 33-51-06.

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