Narrative:

While climbing out of 10;000 ft; we experience a primary stab trim fail. We advised ATC that we would continue the climb as we troubleshoot an issue; but FL280 would be the max for now. We complied with the checklist for primary stab trim fail and turned on secondary trim. We entered a present position hold while we contacted maintenance and we all agreed that we would return and attempt a power cycle on the airplane; rather than continue to our destination in the event it did not reset on the ground. We advised ATC that we were returning. The checklist does not have further action items in the event that the secondary trim is functional. However; the checklist for complete trim failure talks about max flaps 2. We briefed that if we encountered any adverse trim while selecting flaps full; that we would immediately reselect flaps 2 and go around. We also advised that we wanted a runway into the wind with minimal crosswind. No adverse effects were noted and we landed without incident. Upon a power cycle of the aircraft; the message and primary stab trim system reset and functioned normally for the remainder of the flight. Occasionally the primary stab trim can inadvertently be deactivated by touching a single trim controller. However; in this instance; no one was touching the flight controls and the autopilot was engaged in smooth air.

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Original NASA ASRS Text

Title: CE750 flight crew reported an autopilot disconnect and alert message for primary stabilizer trim failure during the climb. Secondary trim functioned normally; but the crew elected to return to the departure airport.

Narrative: While climbing out of 10;000 ft; we experience a primary stab trim fail. We advised ATC that we would continue the climb as we troubleshoot an issue; but FL280 would be the max for now. We complied with the checklist for Primary Stab Trim Fail and turned on Secondary trim. We entered a Present Position hold while we contacted maintenance and we all agreed that we would return and attempt a power cycle on the airplane; rather than continue to our destination in the event it did not reset on the ground. We advised ATC that we were returning. The checklist does not have further action items in the event that the secondary trim is functional. However; the checklist for complete trim failure talks about max flaps 2. We briefed that if we encountered any adverse trim while selecting flaps full; that we would immediately reselect flaps 2 and go around. We also advised that we wanted a runway into the wind with minimal crosswind. No adverse effects were noted and we landed without incident. Upon a power cycle of the aircraft; the message and primary stab trim system reset and functioned normally for the remainder of the flight. Occasionally the primary stab trim can inadvertently be deactivated by touching a single trim controller. However; in this instance; no one was touching the flight controls and the autopilot was engaged in smooth air.

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.