# SDR AALA202102159041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2021
- Submitted: February 15, 2021
- Operation: Air carrier
- Aircraft: [N736AT](https://openairdocs.org/aircraft/N736AT), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 33538
- Aircraft time: 20,718 hours, 2,258 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Lavatory
- Stage of operation: CR
- 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/AALA202102159041

## Discrepancy

AIRCRAFT WAS GROUNDED: AMBER LAVATORY SMOKE ADVISORY MESSAGE ON EICAS DISPLAYED ALONG WITH CHIMES IN CABIN AND SMOKE DETECTED FOR LAV 4RC INDICATED AT DOOR 2L PANEL, NO SMOKE EVIDENCE FOUND. ACCOMPLISHED SMOKE DETECTOR SELF TEST IAW AMM 26-13-00 AND SOF INSPECTION IAW MCM 72L00021001, OPS CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.