"Matthew S. Whiting" wrote:

Well, first, the AIM is advisory, not regulatory. However, I also agree
that it is good practice to adhere to the AIM suggestions.

Oh, here we go again, reinventing the wheel. ;-) When the AIM pontificates
what any reasonable person would consider to be directive material, it is just
that--directive. The AIM cannot state "thou shall do this" because of
countless directives from the Department of Justice and even the federal
courts. To do so, would be issuing federal regulations without following the
Administrative Procedures Act.

Having said all that, if the AIM strongly suggests you do it, and you don't,
you can be charged with violating a relevant FAR. It's been done by the FAA
many times, and quite successfully.