A321 captain reported experiencing a rudder trim failure in flight requiring a divert to a suitable ...

Attributes
ACN	1566826
Time
Date	201808
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Rudder Trim System
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Rud trim 1 failure inflight. Felt several uncommon yaw inputs followed by a right rudder trim input of 3.5 that held the aircraft in a slip at FL340. [Advised ATC] and we diverted from the intended destination to ZZZ for the longer runway.maintenance kept signing off all the tale tell signs that this was happening. It appears ours was more severe and the only one where the aircraft was held in a yaw.

Original NASA ASRS Text

Title: A321 Captain reported experiencing a rudder trim failure in flight requiring a divert to a suitable airport.

Narrative: RUD TRIM 1 Failure inflight. Felt several uncommon yaw inputs followed by a right rudder trim input of 3.5 that held the aircraft in a slip at FL340. [Advised ATC] and we diverted from the intended destination to ZZZ for the longer runway.Maintenance kept signing off all the tale tell signs that this was happening. It appears ours was more severe and the only one where the aircraft was held in a yaw.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A321 captain reported experiencing a rudder trim failure in flight requiring a divert to a suitable airport.