Service difficulty report · Valve · Boeing 747249F

Difficulty date
November 1, 2004
Submitted
November 4, 2004
Operation
Air carrier
Aircraft
N920FT
Make and model
Boeing 747249F
Aircraft serial
22237
Aircraft time
77,050 hours, 18,754 cycles
Engine
Pwa JT9D7Q
Engine time
59,170 hours, 14,357 cycles
Part
Valve
Condition
Failed
Location
Nr 4 Engine
Stage of operation
TX
How discovered
O
Nature of condition
G
Precautionary procedure
E

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

What was found

NR 4 ENGINE START VALVE FAILED TO OPEN IN GROUND START, DUCT PRESSURE IS 40 PSI. NR 4 ENGINE START VALVE MANUAL OPS OK DEFERRED PER DDPG 80-2.