# SDR Q2SA20201129442

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2020
- Submitted: December 1, 2020
- Operation: Air carrier
- Aircraft: N774SA
- Make and model: Boeing 777FZB
- Registry model: [Boeing 777FZB](https://openairdocs.org/model/boeing-777fzb) (OpenAirDocs)
- Aircraft serial: 37986
- Aircraft time: 51,414 hours, 5,582 cycles
- Engine: Ge GE90110B1
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Warning
- Condition: False Activation
- Location: Lavatory
- Stage of operation: DE
- 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/Q2SA20201129442

## Discrepancy

AIRCRAFT GROUNDED.  DURING APPROACH, LAV SMOKE ALARM SOUNDED.  NEGATIVE FIRE FOUND, RESET ALARM.  ICN MX RESET THE SELF TEST SWITCH AND THEN OPERATIONS CHECKED NORMAL, AS PER AMM 26-13-00/501.

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