Service difficulty report · Start Valve · Boeing 747249F

Difficulty date
September 13, 2003
Submitted
September 17, 2003
Operation
Air carrier
Aircraft
N920FT
Make and model
Boeing 747249F
Aircraft serial
22237
Aircraft time
73,860 hours, 18,018 cycles
Engine
Pwa JT9D7Q
Engine time
69,305 hours, 12,594 cycles
Part
Start Valve
Part number
7263746
Part serial
CF22443
Condition
Failed
Location
Nr 4 Engine
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

AFTER PUSH BACK NR 4 ENG FAILED TO START WITH IGNITION SWITCH IN NR 1 OR NR 2 POS. REMOVED AND REPLACED NR 4 ENG START VALVE PER MM 80-11-01. NO LEAKS NOTED, ENG START NORMAL.