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YIO-390-A3B6 vs YIO-390-EXP60

LR60

Active Member
A YIO-390-A3B6 is what I purchased from Vans according to all their paperwork and invoices..

A YIO-390-EXP60 is what Lycoming sent me.

Is this just a case of Vans forms and invoicing not keeping up with Lycomings model number changes? Or is there other differences.



Thanks
 
Interestingly enough, I ordered the YIO-390-EXP119 Thunderbolt engine and received a YIO-390-EXP241. I called Lycoming to inquire about the difference, and have yet to receive an explanation.

Jeffrey Turner
Engine mounted yesterday!
 
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