Newps wrote:

Hogwash

I disagree. If the FSDO don't want to issue the Field Approval, you
have no further recourse, except to try and get it through a different
FSDO.

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

Nonsense. I got a field approval last year on a Boom Beam, and it was
most certainly sent to the FSDO. The submission goes to the FSDO, and
then perhaps to the ACO if it's particular complicated, but it's still
the FSDO that controls the process. Now, the completed 337s go straight
to OK City, but that's something else entirely.

See...

http://www.faa.gov/aircraft/air_cert...d_approv_proc/