SDR UALA2012060503087

Service difficulty report · Fseu · Boeing 777222

Difficulty date: June 3, 2012
Submitted: July 26, 2012
Operation: Air carrier
Aircraft: N782UA
Make and model: Boeing 777222
Aircraft serial: 26948
Aircraft time: 66,989 hours, 9,613 cycles
Engine: Pwa PW40903
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Fseu
Condition: Faulty
Location: Nr 2
Stage of operation: DE
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

FLIGHT EXPERIENCED A PRIMARY FLAPS FAIL. FLIGHT CONTINUED AND MADE A FLAPS 20 LANDING. FLAPS OPERATING IN SECONDARY (ELECTRIC) MODE. CAUTION MSG01-LATCHED DESCENT MODE DEPENDENT; FLAPS MOVE WITHOUT COMMAND. DB- FSEU 2 MSG02- LATCHED DESCENT MODE DEPENDENT; FLAPS MOVE WITHOUT COMMAND. MSG-2720432 LATCHD DC MODE MSG-2720432 LATCHD DC MODE. REPLACED NR 2 FLAP SLAT ELECTRONICS UNIT PER AMM27-51-01 PAGE 401. ERASED STATUS MSG. NOT ACTIVE FAULT AFTER REPLACING AND TEST OF FSEU.