HEMS Flights are flown under a HEMS Approval/Permission/Exemption and can be conducted with suitably qualified HEMScrewmembers (such as paramedics and doctors). Stick a cameraperson onboard for filming such series as Helicopter Heroes and the HEMS exemption cannot be used and it becomes a CAT flight.
CAT flights include Air Ambulance (non emergency medical assistance), Training and Positioning Flights.
Interesting how the article reads that PDG lost the contract as a result of the incident...
Can the door pins be simply extended or does that need a modification approval?