Is there a FAA Manual for Heli flight examiners? gps required?

GPS: If a piece of equipment is installed in the machine that will
be used in a checkride the PIC must know its functionality and be able
to demonstrate its use. For a private checkride there's no requirement
to know GPS use unless its installed and not marked inop before the
ride. Knowledge of Pilotage and Dead Reckoning is probably a far more
important skill to be able to demonstrate.

Bart

Thanks for the info Bart. The reason for the question on the gps, one
of the two instructors he flies with is telling him that gps is
required equipment for the check ride. The Robinson R22 he flies and
would like to use for the checkride does not have gps. Has something
since 9-11 changed that now requires it?

Eric D