Narrative:

Pilot flying was not able to control aircraft while attempting to level at 5;000 MSL. Pilot manually disconnected the autothrottles and placed them in idle. He overrode what appeared to be a stuck elevator and began a descent back to the assigned altitude; I saw 5;800 on the altimeter when he regained control of the aircraft. I did advise the ATC specialist that we had a flight control malfunction and were returning to the assigned altitude.

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Original NASA ASRS Text

Title: G550 Captain reports a stuck elevator during attempted level off at 5;000 FT during departure. Aircraft reaches 5;800 FT before returning to assigned altitude.

Narrative: Pilot flying was not able to control aircraft while attempting to level at 5;000 MSL. Pilot manually disconnected the autothrottles and placed them in idle. He overrode what appeared to be a stuck elevator and began a descent back to the assigned altitude; I saw 5;800 on the altimeter when he regained control of the aircraft. I did advise the ATC Specialist that we had a flight control malfunction and were returning to the assigned altitude.

Data retrieved from NASA's ASRS site as of April 2012 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.