What was found
PER PILOT'S SAFETY REPORT: "SCENE FLIGHT FROM WABASH COUNTY TO PRMC- SAM 1 RESPONDED. UPON ARRIVING THE PATIENT WAS HOT LOADED. INTITALLY MEDIC HAD TROUBLE CLOSING AND LOCKING THE DOOR BEHIND COPILOT SEAT. EVENTUALLY CLOSED THE DOOR AND WE DEPARTED FOR PRMC. UPON ACCELERATING ABOVE 100 KNOTS THE DOOR LIGHT CAME ON AND THE DOOR CAME ADJAR IN FLIGHT. MEDIC, WHILE SEAT BELTED, ATTEMPTED TO CLOSE AND LOCK THE DOOR. AIRCRAFT SLOWED TO ABOUT 60 KNOTS AND WE WERE ABLE TO CLOSE AND LOCK THE DOOR AGAIN WITH THE DOOR LIGHT GOING OUT. UPON ACCELERATING ABOVE ABOUT 100 KNOTS DOOR CAME AJAR AGAIN. WE WERE CLOSE TO KHHG SO WE LANDED ON THE RAMP AND MEDIC GOT OUT AND CLOSED THE DOOR FROM THE OUTSIDE. MEDIC TUGGED ON THE DOOR AND IT APPEARED TO BE CLOSED AND LOCKED. WE THEN DEPARTED FROM KHHG FOR PRMC BUT AGAIN AT AROUND 100-110 KNOTS THE DOOR CAME OPEN. MEDIC HELD THE DOOR CLOSED WHILE BELTED AND WE PROCEEDED NORTH FROM KHHG TO KFWA. WE THEN LANDED ON THE RAMP AND AN AMBULANCE RETRIEVED THE PATIENT AND OUR MED CREW AND CONTINUED TO PRMC. UPON INSPECTION ON THE GROUND AT KFWA THE LOCKING MECHANISM PART OF THE DOOR APPEARED TO BE INOPERATIVE. THE LOCKING BARS PORTION AND FUNCTION OF THE DOOR DID NOT WORK. UPON LANDING AT KFWA TIER 1 AND ON CALL MX WERE IMMEDIATELY NOTIFIED. " MAINTENANCE FOUND THAT A PIN IN THE LOCKING MECHANISM HAD SHEARED, CAUSING THE DOOR LOCK TO BE INOPERABLE.