Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Training / Qualification
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Provided Assistance; Flight Crew Landed As Precaution; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Executed Go Around / Missed Approach; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
On short final; first officer was flying. An uncommanded Annunciation 'priority right' for the First Officer side stick occurred; immediately followed by another annunciation of the same and an uncommanded increase in thrust. I took control of the aircraft at this time; assigned side stick priority to my side; disconnected auto thrust; and executed a go-around as the approach was no longer stable per company policy. The aircraft then functioned normally and a normal approach and landing was accomplished and maintenance informed of the anomaly.
A321 Captain reported a priority right side stick anomaly during approach and elected to perform a go-around. The Captain disconnected autothrust and autopilot and re-tried the approach and landing after assigning side stick priority to the Captain's side.