What was found
AIRCRAFT WAS NOT GROUNDED: DURING DESCENT RECEIVED EICAS MESSAGE FOR LAVATORY SMOKE. DETERMINED TO BE LAVATORY 4R. LAVATORY SMOKE DETECTION AS REQUIRED 4R CHANGE OUT IAW AMM 26-13-00.
- Difficulty date
- March 15, 2021
- Submitted
- March 16, 2021
- Operation
- Air carrier
- Aircraft
- N774AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29581
- Aircraft time
- 86,282 hours, 10,685 cycles
- System (JASC)
- 2611 · Smoke Detection
- Part
- Smoke Detector
- Condition
- False Indication
- Location
- Lavatory
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.