Service difficulty report · Control Unit · Airbus A321231

Difficulty date
March 1, 2012
Submitted
March 12, 2012
Operation
Air carrier
Aircraft
N508AY
Make and model
Airbus A321231
Aircraft serial
3740
Aircraft time
12,526 hours, 3,988 cycles
Part
Control Unit
Part number
C12850AC02
Part serial
C12850003140
Condition
Inoperative
Location
Cockpit
Part time
35,161 hours, 16,267 cycles
Stage of operation
AP
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

FIRST OFFICER REPORTED JOYSTICK MECHANICALLY FROZE MOMENTARILY DURING APPROACH AND FLARE-OUT WITH AUTO PILOT DISENGAGED. MAINTENANCE REMOVED AND REPLACED THE SIDESTICK CONTROLLER AND FLIGHT CONTROL UNIT. SUP WILL BE SUBMITTED UPON REVIEW OF VENDOR TEARDOWN REPORTS FOR ROOT CAUSE. VENDOR CONFIRMED THE FAILURE OF THE FLIGHT CONTROL UNIT AND REASON FOR REMOVAL.

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