SDR UALA2012041702318

Service difficulty report · Solenoid · Boeing 777222

Difficulty date: April 16, 2012
Submitted: June 5, 2012
Operation: Air carrier
Aircraft: N228UA
Make and model: Boeing 777222
Aircraft serial: 30556
Aircraft time: 43,519 hours, 5,310 cycles
Engine: Pwa PW40903
System (JASC): 2781 · Leading Edge Slat Position Indicating System
Part: Solenoid
Condition: Faulty
Location: Slat System
Stage of operation: NR
How discovered: 9
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

SLATS PRIMARY FAIL PRIMARY (HYDRAULIC) SLAT DRIVE FAILURE. SLATS OPERATING IN SECONDARY (ELECTRICAL) MODE. CAUTION MSG01-LATCHED DESCENT MODE DEPENDENT; SLATS PRIMARY LOW SPEED SOLENOID CIRCUIT IS OPEN. DB- FSEU 2 MSG02- LATCHED DESCENT MODE DEPENDENT; SLATS PRIMARY LOW SPEED SOLENOID CIRCUIT IS OPEN. MSG-2720962 LATCHD DC MODE MSG-2720962 LATCHD DC MODE. REPLACED SLAT PRIMARY LOW SPD SOLENOID PER MM. PERFORMED CK PER FIM 27-82 TSK 804. PASSED AIMS RESET, FSEU NR 1 PASSED TEST. CHECKS OKAY.