PA-31 Navajo/Chieftan/Mojave/T1040
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Commercial
Flight Crew Last 90 Days 100; Flight Crew Total 23000; Flight Crew Type 500
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Inflight Shutdown; Flight Crew Landed in Emergency Condition
Aircraft
The engine started to gain power so I progressively pulled the throttle back and engine started to decrease in power but then it started climbing again. With power back to idle engine was still climbing. I turned engine off once it got to redline. I [requested priority handling] then landed at ZZZ.
PA-31 pilot reported an engine overspeed in flight. Performed engine shutdown and landed.