Service difficulty report · O-Ring · Boeing 777222

Difficulty date
September 24, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N773UA
Make and model
Boeing 777222
Aircraft serial
26929
Engine
Pwa PW4077
Part
O-Ring
Part number
M259883245
Condition
Failed
Location
Boost Pump
Component
Gec · S34W1013
Stage of operation
IN
Nature of condition
K
Precautionary procedure
K

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

What was found

FUEL LEAKING FROM THE RIGHT AFT MAIN BOOST PUMP ON REAR SPAR. *S/D* LEAK RESULTED FROM DAMAGED O-RING. REMOVED PUMP PER MM 28-22-05, REPLACED O-RING AND REINSTALLED PUMP, CHECKED OK AFTER INSTALLATION.