Narrative:

Flying at cruise and reduced the power to descent and set up for landing and the throttle at idle power was still producing 2;200 rpms. I tried everything to get a reduction of power but I could not get the power to reduce. I notified ATC at ZZZ; set up on a 3 mile final; and shut the engine off at 100 feet landing engine out. This was the only option due to not being able to create a reduction in power. I rolled out on runway 36L and was able to make a right turn onto taxiway juliet past the hold short line to be able to keep the runway open. I believe there was just an issue with the throttle control to the engine. There was no injuries or aircraft damage.

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Original NASA ASRS Text

Title: PA28 instructor reported a throttle control anomaly which prevented a reduction of power; and necessitated the engine to be shut down just prior to landing.

Narrative: Flying at cruise and reduced the power to descent and set up for landing and the throttle at idle power was still producing 2;200 RPMs. I tried everything to get a reduction of power but I could not get the power to reduce. I notified ATC at ZZZ; set up on a 3 mile final; and shut the engine off at 100 feet landing engine out. This was the only option due to not being able to create a reduction in power. I rolled out on Runway 36L and was able to make a right turn onto taxiway Juliet past the hold short line to be able to keep the runway open. I believe there was just an issue with the throttle control to the engine. There was no injuries or aircraft damage.

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.