The non-flying pilot of a PA28 reported a throttle control that malfunctioned in a high power settin...

Attributes
ACN	1344565
Time
Date	201604
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Flight Plan	None
Component
Aircraft Component	Throttle/Power Lever
Person 1
Function	Pilot Not Flying
Qualification	Flight Crew Commercial Flight Crew Instrument
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 315 Flight Crew Type 3
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

While in the downwind for runway 24; the throttle for the PA28 became stuck in a high power setting (2500 RPM). The throttle could not be retarded and airspeed continued to increase. This caused us (the 2 commercial pilots on board) to reject the landing and divert to [a nearby airport] because it had a 7;500 foot runway. We needed a long runway so we could properly stop. We [advised ATC] and had the fire trucks waiting for our arrival. The throttle was stuck in the high power setting the entire time. On landing; over the 1;000 feet markers; we decided to shut off the fuel mixture to allow the plane to safely glide and land. The landing was uneventful. There were no injuries; fatalities; or damage to the aircraft.

Original NASA ASRS Text

Title: The non-flying pilot of a PA28 reported a throttle control that malfunctioned in a high power setting. A diversion to a nearby airport with a longer runway resulted in successful landing.

Narrative: While in the downwind for Runway 24; the throttle for the PA28 became stuck in a high power setting (2500 RPM). The throttle could not be retarded and airspeed continued to increase. This caused us (the 2 commercial pilots on board) to reject the landing and divert to [a nearby airport] because it had a 7;500 foot runway. We needed a long runway so we could properly stop. We [advised ATC] and had the fire trucks waiting for our arrival. The throttle was stuck in the high power setting the entire time. On landing; over the 1;000 feet markers; we decided to shut off the fuel mixture to allow the plane to safely glide and land. The landing was uneventful. There were no injuries; fatalities; or damage to the aircraft.

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.