Service difficulty report · Fire Loop · Boeing 737522

Difficulty date
March 15, 2005
Submitted
March 22, 2005
Operation
Air carrier
Aircraft
N912UA
Make and model
Boeing 737522
Aircraft serial
25290
Aircraft time
37,763 hours, 28,038 cycles
Engine
Ge CFM56*
Part
Fire Loop
Condition
Malfunctioned
Location
Nr 2 Engine
Stage of operation
CR
How discovered
9
Nature of condition
J
Precautionary procedure
E, A

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

What was found

DIVERTED TO LNK DUE TO NR 2 ENGINE OVERHEAT INDICATION. SHUTDOWN NR 2 ENGINE AND BLEW BOTH FIRE BOTTLES. THERE WERE NO EVIDENCE OF FIRE OR OVERHEAT ON POST FLT INSP. REPLACED UPPER FAN OVERHEAT DETECTOR LOOP M1120. ENGINE OVERHEAT DETECTION SYSTEM TESTED NORMAL AND AIRCRAFT WAS RETURNED TO SERVICE.