Air worthiness directives

I have a date for my airworthiness inspection and going back over condition inspection for engine I checked federal register for any ADs that would apply to YIO 390 EXP 243. I have Googled the info with no joy. Is there another way to get this information for an experimental engine or is it because there are no current squwaks for these new engines. Thanks
Dave

Strictly speaking ADs do not apply to experimental parts. Look at any ADs for IO390’s, or SB’s (service bulletins) for YIO390’s, decide what to do from there.

Airworthiness Directives

Thanks, I will givve that a try