B737 Undifferentiated or Other Model
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 49; Flight Crew Total 217; Flight Crew Type 217
Aircraft Equipment Problem Critical; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Provided Assistance; Flight Crew Returned To Departure Airport; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Landed in Emergency Condition; Flight Crew Diverted; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
On climb out of ZZZ; FO (First Officer) was PF (Pilot Flying) and experienced a runaway trim and speed trim failure annunciation light. Ran the QRH for both checklists. Contacted dispatch and was told to continue to ZZZ1. Asked for Dispatch to include [Maintenance] in discussion. While waiting for them to get back to us; the FO and I determined the best course of action was to return to ZZZ due to weather and terrain . We advised ATC and started back towards ZZZ. I briefed the flight attendants without preparing the cabin for evacuation. On approach FO continued to fly while I assisted with manual trim. Normal landing and taxied to gate to debrief with Maintenance. After talking with ZZZ [Chief Pilot] elected to discontinue the rest of our flying for the day.
B737 Captain reported an air return due to a runaway trim and speed trim failure.