# SDR AALA202201195971

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2022
- Submitted: January 19, 2022
- Operation: Air carrier
- Aircraft: [N772AN](https://openairdocs.org/aircraft/N772AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29580
- Aircraft time: 88,119 hours, 11,429 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Zone 900 - Lav/G
- Stage of operation: UK
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202201195971

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY 1L SMOKE DETECTOR CHARPS INTERMITTENTLY ONLY WHEN OCCUPIED WITH DOOR LOCKED. ACCOMPLISHED SATISFACTORY SMOKE DETECTOR SELF TEST PER AMM 26-13-00. UNABLE TO DUPLICATE FAULT ON THE GROUND.

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