Service difficulty report · Valve · Boeing 747475

Difficulty date
July 22, 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) FOUND WHEN INVESTIGATING FUEL IMBALANCE. WEAR CAUSED BY INLET CHECK VALVE TO IMPELLER AND IMPELLER HOUSING, DEBRIS FROM WEAR CAUSING DAMAGE TO MAIN ROTOR. REPLACED.