# SDR CALA2026042215599

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2026
- Submitted: April 22, 2026
- Operation: Air carrier
- Aircraft: [N37297](https://openairdocs.org/aircraft/N37297), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67612
- Aircraft time: 6,120 hours, 2,075 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 4755712
- Condition: Faulty
- Location: Zone 900
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026042215599

## Discrepancy

FWD LAV SMOKE ALARM SOUNDED FOR 10 SECONDS AND WENT OUT NO SIGN OF SMOKE/FIRE REMOVED AND REPLACED FWD LAV SMOKE DETECTOR IAW AMM 26-14-01-000/400-801, OPS CK GOOD. PARTS USED:  475571-2,QTY :1

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