Service difficulty report · Solenoid Valve · Boeing 777222

Difficulty date
May 31, 2008
Submitted
July 1, 2008
Operation
Air carrier
Aircraft
N799UA
Make and model
Boeing 777222
Aircraft serial
26926
Aircraft time
44,478 hours, 6,675 cycles
Engine
Pwa PW4090
Part
Solenoid Valve
Part number
3910015103600U
Condition
Faulty
Location
T/E Flap
Stage of operation
NR
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

FLAPS PRIMARY FAIL PRIMARY (HYDRAULIC) FLAPS DRIVE FAILURE. FLAPS OPERATING IN SECONDARY (ELECTRIC) MODE. CAUTION MSG-2720372 LATCHD DC MODE. FAILED HIGH LIFT CONTROLS TEST. FOUND FLAPS PRIMARY LOW SPEED SOLENOID VALVE AT FAULT AND REPLACED REF MM 27-51-05, ALL OPS CHECKS SATISFIED. AC OK FOR SERVICE.