It's my understanding that if the engine has ever been changed in a
non-certified manner, ie, different oil pan for Lancair, AD not complied with,
or whatever, it cannot be used in a certified airplane without a complete
overhaul.  I understand that to mean you could not, for example, put the
"certified" oil pan back on the airplane and use it in a certified airplane.

That is NOT true. We have beaten this horse into the ground and this urban legend keeps coming back. The product must conform to the Type Certificate Data Sheet and be in a condition for safe operation. It DOES NOT require an overhaul. If you have a regulation or advisory circular you can cite --then show me the data.

 

Regards,

 

Jeff Edwards

LIVP