Service difficulty report · Bearing · Boeing 747238B

Difficulty date
June 15, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N164UA
Make and model
Boeing 747238B
Aircraft serial
21657
Engine
Pwa JT9D7J
Part
Bearing
Part number
7202811
Condition
Flat Spot
Location
Fuel Control
Component
Hamilton Sta · 7590002
Stage of operation
CR
Nature of condition
M
Precautionary procedure
E, A

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

What was found

NR 4 ENGINE SHUT DOWN DUE TO HIGH EGT. *S/D* REPLACED ENGINE. FOUND FUEL CONTROL UNIT HAD EXCESSIVE WEAR ON ONE SIDE OF THE TT2 PILOT VALVE BEARING. FUEL CONTROL UNIT WAS OVERHAULED.