Lufthansa A346 near Seoul on Feb 14th 2014, flight control problems

A Lufthansa Airbus A340-600, registration D-AIHE performing flight LH-713 from Seoul (South Korea) to Frankfurt/Main (Germany), was climbing through FL230 when the crew stopped the climb and decided to return to Seoul, where the aircraft entered a hold at 7000 feet and landed safely about 60 minutes after stopping the climb.

The flight was cancelled.

A listener on frequency said the crew reported flight control problems to ATC.