A319
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 53; Flight Crew Total 22800; Flight Crew Type 8560
Aircraft Equipment Problem Critical
Flight Crew Diverted; Flight Crew Landed in Emergency Condition
Aircraft
I was the Pilot Flying on this leg. After departing ZZZ1 while climbing through Flight Level 280 on our way up to FL340 Autopilot #1 disconnected and would not reengage. A/P (Autopilot) #2 would engage but after about 30 seconds it also disengaged along with the auto thrust going into THRUST LOCK mode. Then several ECAMs (Electronic Centralized Aircraft Monitor) appeared including RUD TRIM1 FAULT; YAW DAMPER 1; RUD TRV LIM 1. The First Officer ran the Quick Reference Handbook procedures for each of those problems which included resetting the FACs (Flight Augmentation Computer).We leveled at FL340 and the aircraft was exhibiting a slight Dutch Roll tendency so we descended to FL280 and no more Dutch Roll was observed. Autopilots could be intermittently engaged; flight directors would come and go; autothrust would disengage in THRUST LOCK mode. We consulted with Dispatch and [Maintenance Control] via phone patch. Without further attempting to engage autopilots or autothrust events seemed to stabilize and with consult with Dispatch we planned to continue to destination. We began evaluating along route alternates and asked Dispatch to do the same. Shortly thereafter the flight directors started to come and go repeatedly along with the previously described ECAMS. When each rudder ECAM came and went there was a discernible yaw felt. Other messages would appear momentarily then clear such as 2FD2; and BOTH PFDs (Primary Flight Display) on SINGLE SOURCE (not sure of the wording as it would momentarily flash then disappear).At this time we made the decision to divert and after evaluating the weather decided with dispatch concurrence to divert to ZZZ2. An [urgent situation] was declared with ATC and a clearance to ZZZ2 was obtained and a safe landing was made. ECAMS intermittently continued while enroute.The aircraft was always fully under control. After gate arrival I debriefed with the [Flight Manager] and maintenance log entries were submitted. Briefed local ZZZ2 maintenance personnel.
Air Carrier Captain flying A319 aircraft diverted due to aircraft mechanical malfunction.