[stre176]

Just found this service bulletin relating to Superior Crankshafts requiring replacement of the crankshaft....

Service Bulletin 2020-25-12

The AD is effective January 15th, 2021. See pages 11 and 12. Estimated cost of compliance: $14,821.

 

[goatflieg]

See previous thread on this subject. It's been proposed for a long time and just hit the fan, as it were. Yes, I'm affected. https://vansairforce.net/community/showthread.php?t=189895

 

[stre176]

Thanks for the link, I missed the other thread.

 

[9erDriver]

Yup I have one too

Hopefully Superior will help with the cost of the replacement crank at least. I realize that ADs are not mandatory for experimental engines; however, I value my butt too much to ignore this one.