What was found
(CAN) DURING DEPARTURE, A BANG WAS HEARD ON THE LT SIDE OF THE CABIN, NEAR THE FRONT. THOUGHT IT WAS JUST THE CABIN DOOR SEAL. NO ABNORMAL INDICATION NOTED, ALTHOUGH AIR COULD BE HEARD LEAKING FROM THE CABIN DOOR, AND FLIGHT CONTINUED ON. THE PASSENGER DOOR HANDLE, EXTERIOR, WAS NOT ON THE ACFT, AND THERE WAS DAMAGE TO THE LT PROPELLER, ONE BLADE BEING CRACKED. THE PROPELLER AND DOOR HANDLE WERE REPLACED. INVESTIGATED THE DOOR HANDLE ASSY AND IT IS BELIEVED THAT THE HANDLE CAME OFF ITS RETAINING CLIP.