# SDR AALA202111164033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2021
- Submitted: November 16, 2021
- Operation: Air carrier
- Aircraft: [N775AN](https://openairdocs.org/aircraft/N775AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29584
- Aircraft time: 87,602 hours, 10,758 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 4755711
- Condition: False Activation
- Location: Zone 900 - Lav/G
- Stage of operation: NR
- 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/AALA202111164033

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY 3F-1L SMOKE ALARM ALERTED WITH NO SMOKE PRESENT. RED LIGHT STAYED ILLUMINATED IN LAVATORY. REPLACED LAV 3F-1L SMOKE DETECTOR PER MM 26-13-01.

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