# SDR CALA2023021300409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2023
- Submitted: February 13, 2023
- Operation: Air carrier
- Aircraft: [N18243](https://openairdocs.org/aircraft/N18243), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 28806
- Aircraft time: 71,309 hours, 25,715 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Failed
- Location: M1695
- Stage of operation: IN
- How discovered: O
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023021300409

## Discrepancy

RH AFT OVERWING EMERGENCY LIGHT FAILED EMERGENCY LIGHTING SYSTEM -FUNCTIONAL CHECK (REF AAR NR 99957255)

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