Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 12; Flight Crew Total 1110; Flight Crew Type 970
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Overcame Equipment Problem; Flight Crew Returned To Departure Airport; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
Loss of power on take off; prop control released to low RPM. Planning off field landing. Requested priority handling with ZZZ Approach was able to regain some power by holding prop control in for high RPM and return to field. On the ground; inspection of the Vernier control for the prop pitch would not lock in place and slid out on its own to low RPM. Plunger button would not stay out to lock setting.
Bonanza 33 pilot reported engine power loss after take off and performed an air turn back to a precautionary landing.