Service difficulty report · O-Ring · Boeing 777222

Difficulty date
November 14, 2012
Submitted
March 29, 2013
Operation
Air carrier
Aircraft
N778UA
Make and model
Boeing 777222
Aircraft serial
26940
Aircraft time
67,380 hours, 11,848 cycles
Engine
Pwa PW4077
Part
O-Ring
Condition
Leaking
Location
Thrust Reverser
Stage of operation
IN
How discovered
V
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

FOUND NR 1 ENGINE THRUST REVERSER ISOLATION VALVE LEAKING. REPLACED O-RING AND GASKET PLATE ON OUTBOARD SOLENOID. LEAKS CHECKED OK.