Service difficulty report · Rotary Actuator · Boeing 777222

Difficulty date
April 19, 2011
Submitted
April 20, 2011
Operation
Air carrier
Aircraft
N796UA
Make and model
Boeing 777222
Aircraft serial
26931
Aircraft time
59,212 hours, 8,449 cycles
Engine
Pwa PW40903
Part
Rotary Actuator
Part number
256W23101
Part serial
0278
Condition
Faulty
Location
Krueger Flap
Stage of operation
IN
How discovered
V
Nature of condition
F
Precautionary procedure
K

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

What was found

RT LEADING EDGE KRUEGER FLAP JUST INBOARD OF NR 2 ENGINE STUCK PARTIALLY EXTENDED. SUSPECT ROTARY ACTUATOR FAILED PCN 120-9025 (IF REPLACEMENT REQUIRED). RUN SLATS, FOUND RT KRUEGER ROTARY ACT AT FAULT. REMOVED LOWER PNL 611PB FOR ACCESS. REPLACED RT WING LEADING EDGE KRUEGER ROTARY ACTUATOR PER MM. ADJUSTED AND OP CHECK GOOD. RE-INSTALLED PANELS.