M-20 J (201) / Allegro
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 100; Flight Crew Total 4000; Flight Crew Type 50
Aircraft Equipment Problem Critical
Flight Crew Landed As Precaution; Flight Crew Landed in Emergency Condition
Aircraft
Experienced a sudden loss of oil pressure and uncontrollable propeller RPM resulting in propeller overspeed. Partial power was used to maintain safe RPM by reducing throttle to keep RPMs in limit. An [expedited] landing was made at ZZZ.
M20J pilot reported loss of oil pressure and propeller control.