Currently dates between June 1, 2021 to February 7, 2023 and with less than 200hrs on the engine. Also applies to OH engines with a new Crankshaft between said dates. The issue is centered around Crankshaft counterweight pins and the circlips that hold them.
looks like a two day mx input to pull a few cylinders and inspect.
Brought on by three in service engine failures (not Cirrus airframes). Cirrus were the first manufacturer to break cover and start to ground (or pause, as they called it) their own fleet that fell between the initial dates. The AD will probably give five hours grace to ferry with “essential crew” crew only to a mx shop for checks and rectification.
probably those caught up in this already know everything mentioned above. Took a while to tease the actual issue out of Continental.