What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot stated that an in-flight fire aft of the right engine, on approach to landing, was first noticed by the flight medic. Emergency procedures followed, and the fire was extinguished within 30 seconds. Aircraft landed without further incident. Landing gear door and flap were damaged. The source of fire was identified by maintenance as an oil fitting for the waste-gate of the turbocharger which had come loose from the aft lower portion of the engine case.
As the FAA filed it
(-23) PILOT STATED THAT AN IN-FLIGHT FIRE AFT OF THE RIGHT ENGINE, ON APPROACH TO LANDING, WAS FIRST NOTICED BY THE FLIGHT MEDIC. EMERGENCY PROCEDURES FOLLOWED, AND THE FIRE WAS EXTINGUISHED WITHIN 30 SECONDS. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. LANDING GEAR DOOR AND FLAP WERE DAMAGED. THE SOURCE OF FIRE WAS IDENTIFIED BY MAINTENANCE AS AN OIL FITTING FOR THE WASTE-GATE OF THE TURBOCHARGER WHICH HAD COME LOOSE FROM THE AFT LOWER PORTION OF THE ENGINE CASE.