SDR UALA2009041301060

Service difficulty report · Solenoid · Boeing 777222

Difficulty date: April 11, 2009
Submitted: April 16, 2009
Operation: Air carrier
Aircraft: N787UA
Make and model: Boeing 777222
Aircraft serial: 26939
Aircraft time: 52,372 hours, 7,932 cycles
Engine: Pwa PW40903
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Solenoid
Condition: Malfunctioned
Location: Te Flap
Stage of operation: NR
How discovered: O
Nature of condition: F
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 MAINT TEXT: FOUND FLAP PRIMARY FAIL OF FSEU 2. FLAP-SLAT CONTROL 2 FAULT. REF MT 27-011 R1, SWAPPED FSEU'S WITH NO HELP. NEEDS LOW SPEED SOLENOID RPL. REF MM 27-51-05-401. MAINT MESSAGE 27-20432. FSEU 2: MSG-2720432 LATCHED DC MODE. RPL FLAP CONTROL VLV LOW SPEED SOLENOID. TEST AND LEAK CHECK GOOD.