SDR UALA2012071803899

Service difficulty report · Solenoid · Boeing 777222

Difficulty date: July 16, 2012
Submitted: August 24, 2012
Operation: Air carrier
Aircraft: N219UA
Make and model: Boeing 777222
Aircraft serial: 30551
Aircraft time: 48,502 hours, 5,910 cycles
Engine: Pwa PW40903
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Solenoid
Condition: Failed
Location: Te Flaps
Stage of operation: NR
How discovered: 9
Nature of condition: O
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 MSG01- LATCHED DESCENT MODE DEPENDENT; FLAPS PRIMARY LOW SPEED SOLENOID CIRCUIT IS OPEN. DB- FSEU 1 MSG02, LATCHED DESCENT MODE DEPENDENT; FLAPS PRIMARY LOW SPEED SOLENOID CIRCUIT IS OPEN. MSG-2720371 LATCHED DC MODE MSG-2720371 LATCHED DC MODE. MSG NR 27-25511. REPLACED LOW SPEED SOLENOID PER AMM. VERIFIED LEAK CHECK. NO LEAK. OPS CHECKED OK. MAT GRD TEST PASSED.