# SDR CALA2026062517323

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2026
- Submitted: June 25, 2026
- Operation: Air carrier
- Aircraft: [N37408](https://openairdocs.org/aircraft/N37408), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30125
- Aircraft time: 66,699 hours, 28,050 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- 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/CALA2026062517323

## Discrepancy

FLIGHT ATTENDANT CALL LIGHT ILLUMINATED RANDOMLY 3 TIMES THEN FWD LAV SMOKE DETECTOR ALARM SOUNDED FOR APPROXIMATELY 2 SECONDS IMMEDIATELY AFTER. NO EVIDENCE OF SMOKE/FIRE/FUMES PRESENT. PERFORMED LAV SMOKE TEST. SYSTEM OPERATES NORMAL REF AMM 26-14-00

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