Narrative:

Upon takeoff; experienced unusually strong flight control resistance and difficulty maintaining pitch. Unable to maintain altitude. Suspected flight control malfunction or trim malfunction. Upon engaging auto pilot; saw ap trim warning cas message and disabled ap. [Advised ATC] because I was unable to maintain altitude and returned to the airport. Landed safely.

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Original NASA ASRS Text

Title: EMB-505 Single Pilot reported flight control malfunction on takeoff resulting loss of pitch control; resulting in a return to departure airport.

Narrative: Upon takeoff; experienced unusually strong flight control resistance and difficulty maintaining pitch. Unable to maintain altitude. Suspected flight control malfunction or trim malfunction. Upon engaging Auto Pilot; saw AP TRIM warning CAS message and disabled AP. [Advised ATC] because I was unable to maintain altitude and returned to the airport. Landed safely.

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.