# SDR CALA2025071406526

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2025
- Submitted: July 14, 2025
- Operation: Air carrier
- Aircraft: [N38454](https://openairdocs.org/aircraft/N38454), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 31640
- Aircraft time: 40,618 hours, 14,843 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/CALA2025071406526

## Discrepancy

AFT LAV SMOKE DETECTOR ACTIVATED. NO INDICATION OF SMOKE OR FUMES INSPECTED LAVATORY, FOUND STATUS INDICATOR LIGHT ON SMOKE DETECTOR SOLID GREEN, NO SIGNS OF SMOKE, NO ALARM. NO HISTORY OF ISSUE. REF.AMM 26-14-00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.