SDR 97UAL900420

Service difficulty report · Fire Loop · Boeing 737322

Difficulty date: June 5, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N345UA
Make and model: Boeing 737322
Aircraft serial: 24249
Engine: Ge CFM56*
System (JASC): 2612 · Fire Detection
Part: Fire Loop
Condition: Out Of Position
Location: Rt Wing/Body
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.

What was found

EXPERIENCED RT WING BODY OVERHEAT WARNING. OVERHEAT LIGHT ON INTERMITTENT DURING CLIMB. *S/D* THE CAUSE WAS ATTRIBUTED TO THE POSITIONING OF THE FIRE DETECTION LOOP ELEMENTS 35564-4-310 (RT LEADING EDGE OVERHEAT) AND 35560-4-310 (RT ENGINE STRUT CAVITY OVERHEAT) WITH RESPECT TO BLEED DUCTS AND ENGINE, RESPECTIVELY. REPLACED LOOPS AS A PRECAUTION. PERFORMED SYSTEM TEST SUCCESSFULLY.