Narrative:

After takeoff the sic was hand flying and we received a windshear warning on the pfd and aurally. We knew that it was erroneous because the weather was near perfect. After a brief discussion we elected to continue to our destination because we knew the malfunction was able to be meled. As the flying pilot was attempting to level the aircraft at 5;000 ft. The sic tried using the electric trim to level the aircraft and it appeared the electric trim wasn't working so the sic tried using the manual trim wheel. At first the trim wheel was stiff and then broke free and moved very easily with no effect on the pitch trim. The flying pilot reduced power but still had to use both hands and wedge his knee between the seat and control column to maintain level flight. We briefly transferred controls so that I could feel the required force to maintain level flight. After transferring controls back we discussed the options briefly and then notified ATC of our decision to return to our departure airport. After running the appropriate checklist with little relief in control pressure we changed configuration until we found that full flaps and airspeed around 135 to 140 KIAS alleviated the excessive control pressure required. The remainder of the flight was uneventful and completed as normal. The flying pilot did an outstanding job maintaining aircraft control under difficult circumstances. I can't recommend an option to alleviate this [from] happening again as the trim was checked prior to takeoff and operated normally.

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Original NASA ASRS Text

Title: A CE560XL crew attempted to level after takeoff; but the elevator trim was frozen in a nose high attitude. By applying extreme pressure the aircraft was leveled; the trim broke free and the crew regained aircraft control at approach speed with flaps extended. Damaged trim cables were found.

Narrative: After takeoff the SIC was hand flying and we received a windshear warning on the PFD and aurally. We knew that it was erroneous because the weather was near perfect. After a brief discussion we elected to continue to our destination because we knew the malfunction was able to be MELed. As the flying pilot was attempting to level the aircraft at 5;000 ft. The SIC tried using the electric trim to level the aircraft and it appeared the electric trim wasn't working so the SIC tried using the manual trim wheel. At first the trim wheel was stiff and then broke free and moved very easily with no effect on the pitch trim. The flying pilot reduced power but still had to use both hands and wedge his knee between the seat and control column to maintain level flight. We briefly transferred controls so that I could feel the required force to maintain level flight. After transferring controls back we discussed the options briefly and then notified ATC of our decision to return to our departure airport. After running the appropriate checklist with little relief in control pressure we changed configuration until we found that full flaps and airspeed around 135 to 140 KIAS alleviated the excessive control pressure required. The remainder of the flight was uneventful and completed as normal. The flying pilot did an outstanding job maintaining aircraft control under difficult circumstances. I can't recommend an option to alleviate this [from] happening again as the trim was checked prior to takeoff and operated normally.

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.