Service difficulty report · Start Valve · Boeing 7472D7B

Difficulty date
January 27, 2007
Submitted
January 30, 2007
Operation
Air carrier
Aircraft
N527MC
Make and model
Boeing 7472D7B
Aircraft serial
22471
Aircraft time
95,146 hours, 19,093 cycles
Engine
Ge CF650E2
Engine time
53,744 hours, 11,408 cycles
Part
Start Valve
Part number
3978921
Part serial
AEX12393
Condition
Faulty
Location
Nr 3 Engine
Part time
5,204 hours, 1,232 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
E

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

What was found

NR 3 ENGINE START VALVE OPEN LIGHT CAME ON DURING CRUISE, FOLLOWED FHB PROCEDURES AND SHUT DOWN THE ENGINE. TRANSFERRED TO DEFERRED ITEM M07-010, MEL 80-1-1. AS PER MCC REQUEST REMOVED AND REPLACED START VALVE. REMOVED AND REPLACED START VALVE AS REQUIRED.

More about the Boeing 747-2D7B