What was found
AIRCRAFT WAS NOT GROUNDED: 3F-1L LAVATORY SMOKE DETECTOR ALARM LIGHT AND CHIME ACTIVATED DURING DESCENT, HOWEVER NO SMOKE OR FUMES PRESENT. PERFORMED SMOKE DETECTOR SELF-TEST IAW FIM 26-14-00-810-811 AND AMM 26-13-00, OPS CHECK GOOD.
- Difficulty date
- September 4, 2020
- Submitted
- September 8, 2020
- Operation
- Air carrier
- Aircraft
- N787AL
- Make and model
- Boeing 777223
- Aircraft serial
- 30010
- Aircraft time
- 81,396 hours, 9,790 cycles
- System (JASC)
- 2611 · Smoke Detection
- Part
- Smoke Detector
- Part number
- 4755711
- Condition
- False Activation
- 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.