Service difficulty report · Start Valve · Boeing 7472D7B

Difficulty date
June 11, 2006
Submitted
June 22, 2006
Operation
Air carrier
Aircraft
N528MC
Make and model
Boeing 7472D7B
Aircraft serial
22472
Aircraft time
77,050 hours, 15,311 cycles
Engine
Ge CF650E2
Engine time
69,781 hours, 13,960 cycles
Part
Start Valve
Part number
3978921
Part serial
AEX10688
Condition
Damaged
Location
Nr 4 Engine
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

NR4 ENGINE SHUT DOWN AT 1945Z DUE TO NR 4 START VALVE ENGINE LIGHT FLICKERING AND THEN COMING ON. REMOVED AND REPLACED NR 4 START VALVE AS PER AMM 80-11-04. PERFORMED GROUND OPS BY MONITORING SATISFACTORY.

More about the Boeing 747-2D7B