Service difficulty report · Fire Loop · Boeing 737236

Difficulty date
October 8, 2006
Submitted
October 13, 2006
Operation
Air carrier
Aircraft
N828AL
Make and model
Boeing 737236
Aircraft serial
23168
Aircraft time
40,359 hours, 34,341 cycles
Engine
Pwa JT8D9A
Engine time
51,096 hours, 91,574 cycles
Part
Fire Loop
Part number
899929
Part serial
0183
Condition
Failed
Location
Nr 2 Engine
Stage of operation
CR
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

DURING CRUISE FROM KOA TO OGG, THE NR 2 ENGINE OVERHEAT LIGHT ILLUMINATED. THE CREW RETARDED THE NR 2 ENGINE THRUST LEVER AS PER QRH AND THE LIGHT EXTINGUISHED. THE AIRCRAFT LANDED IN OGG WITHOUT FURTHER INCIDENT. MAINTENANCE RAN THE NR 2 ENGINE WITH ALL INDICATIONS NORMAL. MAINTENANCE CLEANED THE NR 2 ENGINE FIRE LOOP CONNECTORS AS PRECAUTIONARY. AIRCRAFT WAS RETURNED TO SERVICE. ON THE SECOND LEG OF THE FLIGHT, THE NR 2 ENGINE OVERHEAT LIGHT ILLUMINATED AGAIN WHILE EN ROUTE TO LIH. THE CREW RETARDED THE NR 2 ENGINE THRUST LEVER AS PER QRH AND THE LIGHT EXTINGUISHED. THE AIRCRAFT DIVERTED TO HNL AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE PLACED THE NR 2 ENGINE OVERHEA