Service difficulty report · Control Valve · Boeing 777222

Difficulty date
October 25, 2012
Submitted
November 21, 2012
Operation
Air carrier
Aircraft
N788UA
Make and model
Boeing 777222
Aircraft serial
26942
Aircraft time
68,544 hours, 9,699 cycles
Engine
Pwa PW40903
Part
Control Valve
Condition
Faulty
Location
Le Slat
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FLAP-SLAT CONTROL 1 HIGH LIFT CONTROL LANE NR 1 HAS A FAULT. STATUS MSG01- LATCHED DESCENT MODE DEPENDENT; SLATS PRIMARY SHUTOFF SOLENOID CIRCUIT IS OPEN. DB- FSEU 1 MSG-2721011 LATCHD DC MODE. FLAP SLAT CONT 1 MESSAGE. REPLACED PRIMARY SHUTOFF SOLENOID ON SLAT PRIMARY CONTROL VALVE, FLAP-SLAT OPS CHECK NORMAL PER MM.