FSDO is not in the loop anymore as all field approvals go right to OKC
now.

Really ???? What FSDO do you work under?

I still send my field approvals to my PMI and he stamps them and sends them
back to me.

When I return the plane to service I send the signed 337 to OKC per the
change to appendix B part 43.

Cheers:

Paul
N1431A
A&P IA