Service difficulty report · Overheat Sys · Boeing 737824

Difficulty date
July 21, 2024
Submitted
July 24, 2024
Operation
Air carrier
Aircraft
N14250
Make and model
Boeing 737824
Aircraft serial
28957
Aircraft time
75,815 hours, 28,586 cycles
Part
Overheat Sys
Part number
35008307
Part serial
2578
Condition
Loose
Location
Zone 100
Part time
44,815 hours, 16,351 cycles
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHEEL WELL FIRE LIGHT ON DURING TAKEOFF ROLLOUT RAN BITE TEST ON THE WHEEL WELL FIRE, WING & BODY OVERHEAT DETECTION CONTROL MODULE IAW AMM 26-18 TASK 801. BITE TEST CAME BACK WITH NUMEROUS CODES FOR FIRE LOOPS ALL AT DIFFERENT POINTS ON THE PLANE. UPON EXAMINATION OF THE BOX FOUND MOUNTING LATCH TO BE LOOSE. TIGHTEN DOWNED LATCH. REINSTALLED BOX IAW AMM TASK 26-18-01-400-801. PERFORMED BITE CHECK AGAIN. NO FAULTS NOTED. OPS CHECK SAT. DUE TO BOX BEING LOOSE RECOMMEND BOX REPLACEMENT FOR PRECAUTIONARY MEASURE. REMOVED AND REPLACED THE WHEEL WELL FIRE, WING & BODY OVERHEAT DETECTION CONTROL MODULE IAW AMM TASK 26-18-01-400-801. PERFORMED BITE CHECK IAW AMM 26-18 TASK 801. OPS CHECK SAT. NO FAULTS NOTED AT THIS TIME.