# SDR CALA2026030414318

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2026
- Submitted: March 4, 2026
- Operation: Air carrier
- Aircraft: [N37518](https://openairdocs.org/aircraft/N37518), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64495
- Aircraft time: 17,354 hours, 5,746 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Fuse
- Part number: B21506
- Condition: Open
- 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/CALA2026030414318

## Discrepancy

EMERGENCY LIGHTS OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - DOOR 1L SLIDE LIGHT INOP. POWER SUPPLY - FUSE REPLACEMENT. REFERENCE: TASK 33-51-06-960-801. OPS CKD OK.

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