Jim Macklin wrote:


(iii) Except for a recreational pilot, is acting as pilot in
command of an aircraft on which more than one pilot is
required under the type certification of the aircraft or the
regulations under which the flight is conducted.


Jim, the FAA has repeatedly stated that 14 CFR 91.109(b)
is considered to be one of those caes which more than one pilot
is required under the REGULATIONS UNDER WHICH THE FLIGHT IS
CONDUCTED.