Service difficulty report · Smoke Detector · Boeing 737824

Difficulty date
September 20, 2025
Submitted
September 23, 2025
Operation
Air carrier
Aircraft
N79521
Make and model
Boeing 737824
Aircraft serial
31662
Aircraft time
47,254 hours, 16,812 cycles
Part
Smoke Detector
Condition
Malfunctioned
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.

What was found

AFT LAVATORY SMOKE DETECTOR AND LIGHT CAME ON THEN OFF. NEITHER AFT LAVATORY FIRE EXTINGUISHER IS DISCHARGED. NEITHER AFT LAVATORY OVERTEMP LABEL INDICATES OVERTEMP. NEITHER LAV SMELLS OF SMOKE. BOTH AFT LAV SMOKE DETECTORS OPS CHECK GOOD IAW AMM 26-14-00-730-802.