I'm curious if the pilot was working for a Part 135 company or was he just free lancing, ...who owned the plane ?)
Just looked it up it was owned by a flying service...
DWYER FLYING SERVICE
Street MUNICIPAL AIRPORT
City MASON CITY
State IOWA Zip Code 50401
County CERRO GORDO
Country UNITED STATES
Surely they had some libality in dispatching the airplane/pilot into conditions they knew the pilot was not qualified to fly in.
( He had bustred a inst check ride just shortly before)