What was found
LAV 111 SMOKE DETECTOR SOUNDED WITH NO SMOKE. NO GREEN LT ILLUM STOPPED SOUND BUT AGAIN. RPLD SMOKE DETECTOR PER MM 26-13-01 P401 AND TEST OK. TEST PER MM 26-13-00. CHKD AND FOUND NO FIRE, NO SMOKE IN LAV 111.
- Difficulty date
- January 19, 2012
- Submitted
- January 24, 2012
- Operation
- Air carrier
- Aircraft
- N122UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29168
- Aircraft time
- 52,104 hours, 6,181 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2611 · Smoke Detection
- Part
- Smoke Detector
- Part number
- PU90461R3
- Condition
- Faulty
- Location
- Lavatory
- Stage of operation
- IN
- 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.