# SDR SCNA20260225101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2026
- Submitted: February 25, 2026
- Operation: Air carrier
- Aircraft: [N7901A](https://openairdocs.org/aircraft/N7901A), registered now
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 32605
- Aircraft time: 54,647 hours, 26,642 cycles
- System (JASC): [2610 · Detection System](https://openairdocs.org/jasc/2610)
- Part: Smoke Detector
- Condition: False Activation
- Location: Zone 900
- Stage of operation: CL
- 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/SCNA20260225101

## Discrepancy

FWD LAV SMOKE DETECTOR ALARM TRIGGERED AT 5000 FT AND CONTINUED TILL  WIGGLED, AFTER SHUTDOWN.  REMOVED AND REPLACED  LAV SMOKE DETECTOR IAW AMM 26-14-01. OPS CHECK GOOD. THIS CLEARES MEL 26-16-1, MDDR# 137175 PLACARDS REMOVED

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