What was found
FIRE ALARM ACTIVATED IN LAV NEAR DOOR 3 WHILE IN FLIGHT. NO EVIDENCE OF SMOKE ON ARR. FIRE EXTINGUISHER CKED OK. SMOKE DETECTOR TEST PASSED AT ALL LAVS DOOR 3 PER AMM 26-13-00.
- Difficulty date
- May 3, 2017
- Submitted
- May 5, 2017
- Operation
- Air carrier
- Aircraft
- N122UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29168
- Aircraft time
- 72,085 hours, 8,121 cycles
- System (JASC)
- 2611 · Smoke Detection
- Part
- Fire Warning
- Condition
- False Activation
- Location
- Lavatory
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.