What was found
WHILE RIGGING PROPELLERS IT WAS DISCOVERED THE #1 PROPELLER PRESSURE CUTOFF SWITCH IN THE PUMP HOUSING WILL NOT RELEASE THE FEATHER BUTTON.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE RIGGING PROPELLERS IT WAS DISCOVERED THE #1 PROPELLER PRESSURE CUTOFF SWITCH IN THE PUMP HOUSING WILL NOT RELEASE THE FEATHER BUTTON.