Service difficulty report · Control Valve · Boeing 777222

Difficulty date
September 1, 2013
Submitted
September 5, 2013
Operation
Air carrier
Aircraft
N219UA
Make and model
Boeing 777222
Aircraft serial
30551
Aircraft time
53,559 hours, 6,478 cycles
Engine
Pwa PW40903
Part
Control Valve
Part number
3930007102
Part serial
0356
Condition
Faulty
Location
Le Slat
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

NEEDS SLAT PRIMARY CONTROL VALVE REPLACEMENT. STARTED REMOVAL OF SLAT PRIMARY CONTROL VALVE IAW AMM 27-81-05 PG401, UP TO PG402, STEP D(2). CONTINUE FROM STEP D(3) PG 402 TO END. REPLACED SLATS PRIMARY EXTEND SOLENOID. REPLACED SLAT PRIMARY CONTROL VALVE. LEAK CHECKED OK, NO LEAKS. TESTED TASK 27-81-05-740-801. PASSED FSEU 1 FAILED FSEU 2.