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FAA Raises Concern Over Fuel-Injected Lycoming IO-360 Engines

Wednesday, December 17, 2025 @ 8:00 AM

via AOPA

Uncommanded shutdowns involving Lycoming fuel-injected IO-360 engines when throttled back to idle have prompted the FAA to seek additional information from owners and operators.

An Airworthiness Concern Sheet issued December 16 asks for details about any shutdown events during ground or flight operations, including what actions were taken and the outcomes. The IO-360 is installed on several popular training aircraft, including recent Cessna 172S/172R models, Piper Archer III and Pilot 100i, and the Piper Seminole. The FAA is also asking operators and maintenance personnel to report similar events even if the aircraft does not use the AVStar vertical- or horizontal-mounted fuel servos noted in reports so far.

» Full Story: AOPA

 


iFlightPlanner Comment:

If you operate or maintain an IO-360-equipped aircraft, consider submitting any rollback details through the FAA’s airworthiness concern sheet process so the agency has better data to work from.

The iFlightPlanner Crew
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