Service difficulty report · O-Ring · Boeing 777222

Difficulty date
October 23, 2012
Submitted
November 21, 2012
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
69,038 hours, 12,404 cycles
Engine
Pwa PW4077
Part
O-Ring
Condition
Leaking
Location
Rt Brake
Stage of operation
IN
How discovered
O
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

RIGHT BRAKE SHUTTLE VALVE LEAKING. REPLACED O-RING MOST FORWARD LOWER UNION :RIGHT ANTI-SKID SHUTTLE VALVE. OPERATED SYSTEM, NO LEAK.