What was found
AIR TURNBACK---- LOUD NOISE APPEARS TO COME FROM F/O'S WINDOW ABOVE 9000 FEET. FOUND FWD AND AFT LAV SMOKE DETECTORS ALARMING. REMOVED AND REPLACED SMOKE DETECTORS PER MM, NOISE WENT AWAY.
- Difficulty date
- July 3, 1999
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N727SW
- Make and model
- Boeing 7377H4
- Aircraft serial
- 27859
- System (JASC)
- 2611 · Smoke Detection
- Part
- Smoke Detector
- Part number
- PU90499R3
- Condition
- Malfunctioned
- Location
- Lavatory
- Stage of operation
- CL
- Nature of condition
- N
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.