Endorsement
C-House]
In this case the guy had a 172 on his commercial,but the Rocket had an IO-360 injected engine with a VP prop.
He must have come off jets at BA so his licence never contained a type with a VP prop.
The fact that he had captained a machine with 4 contra rotating cs and fully feathering props did not impress the CAA that he had the required experience to use a simple VP prop on a Cessna.