# SDR AALA202111228130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2021
- Submitted: November 22, 2021
- Operation: Air carrier
- Aircraft: [N960NN](https://openairdocs.org/aircraft/N960NN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 33330
- Aircraft time: 21,389 hours, 8,391 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Indication
- Location: Zone 900 - Lav/G
- Stage of operation: CR
- How discovered: V
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202111228130

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: MASTER CAUTION LIGHT ILLUMINATED FOLLOWED BY LAVATORY SMOKE ANNUNCIATION ON COCKPIT OVERHEAD, BUT NO SMOKE DETECTED IN RH AFT LAVATORY. ACCOMPLISHED SMOKE DETECTOR FUNCTIONAL TEST IAW AMM 26-14-00, OPS CHECK GOOD.

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