What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) After take-off from kgjt the aircraft turned to its crosswind and at approximately 2000 feet above ground level (AGL) the pilots heard a loud bang. The captain looked and saw that the main cabin door was missing. They turned the aircraft around and landed without further incident. The engine did ingest some of the door, and was limited to some of the blades that were according to the west star aviation were able to be blended. The main entry door was destroyed, lower VHF communication antenna destroyed, lower water drain mast destroyed, right wing/root fairing damaged but repairable, right wing/root fairing support structure twisted but repairable and the skin section under the door hinge dented and gouged but also repairable (all the damage was indicated by privacy data omitted at west star aviation). The NTSB classified this as an incident. As of this point there is no evidence that indicates that the pilots latched the door properly.
As the FAA filed it
(-23) AFTER TAKE-OFF FROM KGJT THE AIRCRAFT TURNED TO ITS CROSSWIND AND AT APPROXIMATELY 2000 FEET ABOVE GROUND LEVEL (AGL) THE PILOTS HEARD A LOUD BANG. THE CAPTAIN LOOKED AND SAW THAT THE MAIN CABIN DOOR WAS MISSING. THEY TURNED THE AIRCRAFT AROUND AND LANDED WITHOUT FURTHER INCIDENT. THE ENGINE DID INGEST SOME OF THE DOOR, AND WAS LIMITED TO SOME OF THE BLADES THAT WERE ACCORDING TO THE WEST STAR AVIATION WERE ABLE TO BE BLENDED. THE MAIN ENTRY DOOR WAS DESTROYED, LOWER VHF COMMUNICATION ANTENNA DESTROYED, LOWER WATER DRAIN MAST DESTROYED, RIGHT WING/ROOT FAIRING DAMAGED BUT REPAIRABLE, RIGHT WING/ROOT FAIRING SUPPORT STRUCTURE TWISTED BUT REPAIRABLE AND THE SKIN SECTION UNDER THE DOOR HINGE DENTED AND GOUGED BUT ALSO REPAIRABLE (ALL THE DAMAGE WAS INDICATED BY ^PRIVACY DATA OMITTED^ AT WEST STAR AVIATION). THE NTSB CLASSIFIED THIS AS AN INCIDENT. AS OF THIS POINT THERE IS NO EVIDENCE THAT INDICATES THAT THE PILOTS LATCHED THE DOOR PROPERLY.