Service difficulty report · Control Unit · Boeing 737823

Difficulty date
December 12, 2012
Submitted
December 13, 2012
Operation
Air carrier
Aircraft
N904NN
Make and model
Boeing 737823
Aircraft serial
33317
Aircraft time
559 hours, 225 cycles
Part
Control Unit
Condition
Inoperative
Location
Overheat Detect
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

JFK - CREW REPORTED MAIN LANDING GEAR WHEEL WELL FIRE WARNING INDICATION. EMERGENCY DECLARED FLIGHT LANDED JFK WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. INITIAL INSPECTION OF MAIN LANDING GEAR WHEEL WELL WITH NO SIGN OF OVERHEAT/ FIRE INDICATION. REPLACED OVERHEAT DETECTION CONTROL UNIT M237. SYSTEM GROUND CHECK NORMAL OPERATION.