Narrative:

After takeoff the landing gear would not come up. We flew the appropriate departure instructions and coordinated with ATC to level off and enter holding. In holding; the captain ran the QRH procedure whilst I flew the plane and covered the primary radio frequency. The captain then swapped aircraft control to his seat while I tried the QRH procedure. Confirming the gear would not come up; we made plans to return to [departure airport] while coordinating with ramp; maintenance and the dispatcher. The landing was uneventful. Maintenance was outstanding and we were airborne in less than six hours.[cause was a] failure of the landing gear trim system.I'd rather have the landing gear refuse to come up; than have the landing gear come up without the gear trim system functioning properly. Standard procedures and good coordination made this a non-issue.

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Original NASA ASRS Text

Title: MD-11 First Officer reported returning to departure airport after the landing gear failed to retract.

Narrative: After takeoff the landing gear would not come up. We flew the appropriate departure instructions and coordinated with ATC to level off and enter holding. In holding; the Captain ran the QRH procedure whilst I flew the plane and covered the primary radio frequency. The Captain then swapped aircraft control to his seat while I tried the QRH procedure. Confirming the gear would not come up; we made plans to return to [departure airport] while coordinating with ramp; Maintenance and the Dispatcher. The landing was uneventful. Maintenance was outstanding and we were airborne in less than six hours.[Cause was a] failure of the landing gear trim system.I'd rather have the landing gear refuse to come up; than have the landing gear come up without the gear trim system functioning properly. Standard procedures and good coordination made this a non-issue.

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.