Service difficulty report · Trim System · Airbus A320232

Difficulty date
March 28, 2011
Submitted
April 27, 2011
Operation
Air carrier
Aircraft
N451UA
Make and model
Airbus A320232
Aircraft serial
865
Aircraft time
42,089 hours, 16,638 cycles
Engine
Iae V2527A5
Part
Trim System
Condition
Malfunctioned
Location
Horiz Stab
Stage of operation
NR
How discovered
O
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

ACCOMPLISHING AN OPERATIONAL TEST OF TRIMMABLE HORIZONTAL STABILIZER. TEST FAILS STEP 7 OF AMM. THS ACTUATOR NEVER STOPS. ON THE LEFT AND RIGHT THS ACTUATOR CONTROL SHAFT THE LOCKWIRE AND CAPS ARE REMOVED. PARTS IN COCKPIT. STILL COULDN'T GET EITHER LT NOR RT TO PASS TEST. STAB KEEPS HUNTING. SWAPPED ELAC'S, NO HELP. CONFERRED WITH FLAMINI AND KOENIG, SUGGEST THS REPLACEMENT. RESET THS, PERFORMED TEST PER MM, OPS CHECK NORMAL.

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