Here’s a throttle control cable that has separated from the housing. It is very likely that on a stiff throttle, the cable might bend prior to actuating the throttle lever when being pushed.
Check the cable housings carefully during inspections.
One plane, one pilot, 5 tons of garbage: How Jeremy Rowsell plans to crisscross the globe in a Cessna 172 powered by fuel made from recycled plastic. By Dean Sigler.