A Republic Airways Embraer ERJ-175, on flight AA4439 suffered massive controllability issues soon after take-off from Atlanta (KATL), GA.
According Avherald , “Aircraft on flight #AA4439 from Atlanta,GA to New York La Guardia,NY (USA) with 6 people on board, was climbing out of Atlanta’s runway 09L when the crew declared emergency reporting they had a trim runaway.
The crew stopped the climb at about 14,000 feet and positioned for a return to Atlanta’s runway 10. The crew subsequently reported, while cleared for a right downwind to runway 10, they were in a stalling situation and subsequently added they couldn’t get their pitch down, they were trying to descend nonetheless.
ATC offered runway 08L, 10 or 09R, ATC could clear anyone out of the way. The crew advised they were able to take a turn and received vectors to runway 10.
Instead of descending the aircraft began to climb again, then descended, the crew advised they got a system warning to cut out, got the problem under control and were now okay, they had been fighting with the aircraft for a while. The aircraft joined the final for runway 10, ATC again offered runway 10 or 09R, “your call”, and cleared the aircraft to land either runway. The aircraft landed safely on runway 10 about 19 minutes after departure and about 15 minutes after the emergency call.”
The aircraft is still on the ground about 18 hours after landing in Atlanta.