Service difficulty report · Heat Exchanger · Boeing 747123

Difficulty date
April 21, 2002
Submitted
April 26, 2002
Operation
Air carrier
Aircraft
N675UP
Make and model
Boeing 747123
Aircraft serial
20390
Engine
Pwa JT9D7A
Part
Heat Exchanger
Part number
811945
Part serial
BJ166
Condition
Defective
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
M
Precautionary procedure
E

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

What was found

INSPECTION TYPE:N/A ENG NR 2 OIL TEMP CLIMBED INTO YELLOW RANGE THEN HIT RED RADIAL 8 MIN LATER. EXECUTED PRECAUTIONARY INFLIGHT SHUTDOWN AT 08H53Z. REMOVED AND REPLACED FUEL HEATER VALVE AND FUEL /OIL COOLER. ENG RUN AT EPR 1.18 FOR 32 MIN OIL TEMP 70 DEGREES C. ALL CHECKS OK.