What was found
LAVATORY D SMOKE DETECTOR TRIGGERED IN FLT . NO EVIDENCE OF SMOKE OR SMELLS. WENT ON/OFF TWICE. GROUNDED - YES. DET TESTS GOOD - NO DEFECTS FOUND.
- Difficulty date
- June 18, 2026
- Submitted
- June 23, 2026
- Operation
- Air carrier
- Aircraft
- N431AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43255
- Aircraft time
- 46,307 hours, 14,553 cycles
- System (JASC)
- 2611 · Smoke Detection
- Part
- Smoke Detector
- Condition
- False Activation
- Location
- Zone 900
- Stage of operation
- NR
- 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.