# SDR CALA2025012301988

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2025
- Submitted: January 23, 2025
- Operation: Air carrier
- Aircraft: [N27519](https://openairdocs.org/aircraft/N27519), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43459
- Aircraft time: 13,388 hours, 4,481 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Fuse
- Part number: ABSB21506
- Condition: Failed
- 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/CALA2025012301988

## Discrepancy

EMERGENCY LIGHTS OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - NONE OF SEATS IN FIRST CLASS WORK DURING EMERGENCY LIGHT TEST. SEE PHOTO. REPLACED FUSE IN SLOT F2 REF AMM 33-51-06-960-801. OPS CHECK OK.

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