Service difficulty report · Valve · Boeing 747475

Difficulty date
April 28, 1997
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Boeing 747475
Part
Valve
Part number
60703137
Condition
Worn
Location
Inlet Check
Component
Boeing · 60703137
Stage of operation
IN
Nature of condition
J
Precautionary procedure
K

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

What was found

(CAN) DURING TORUBLE SHOOTING FOR FUEL IMBALANCE DISCREPANCIES FOUND INLET CHECK VALVE WEARING INTO PUMP INLET IMPELLER, DEBRIS CAUSING DAMAGE TO MAIN PUMP ROTOR. REPLACED.