But we know that ADF is not required for this approach.

No, we do not know that. We know that the FAA, in its infinite wisdom,
has stated a requirement for an ADF receiver to be on board. It has
done so by NOTAM (according to a previous poster).

It all boils down to whether or not a pilot is to rely on the
publications of (or sanctioned by) the FAA for regulatory information.

For all I know (no comments from the peanut gallery!) it may be typical
for ATC to issue alternate missed approach instructions "proceed direct
to the ABC More Music station and hold until you hear Jethro Tull", and
the ADF prepares you for that.

Jose
--
The monkey turns the crank and thinks he's making the music.
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