Okay, we made a last minute tweak to service letter 427, but that means I can release it.
It is now posted on the ACA website.
The AD will prohibit acrobatic flight until the nicopress sleeves are checked. It will allow several hours of Normal Catagory operation, as in, fly to get it checked.
Basically, only LOW TIME airplanes are affected. You heard me; low time. Sounds weird, but high time airplanes would already have encountered an issue. I think the AD will match the Service Letter of 250 hours or less.
All the of the sleeves are fairly easy to get to, except the aileron bell crank ones. Plan on getting 2 inspection hole covers for that hole. I told someone here at ACA, to write up some shop notes and I would post those too. They would be 'unofficial' but they would still be good tips. Hopefully they can get to it.