What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On climb-out from detroit city airport, cargo door opened on aircraft and trailed approx. 4 inches. Crew landed aircraft without incident at ptk, Pontiac, Michigan. Portion of crago liner fodded #1 engine. Investigation determined that door warning/latch system was operating properly. Operator's chief inspector of maintenance reported failure of one door pulley after several more flights. Aircraft door manufacturer caonsulted by operator and found no initial problems with door. Director of operations for operator re-emphasized door operation and operation testing of warning system with flight crewmembers.
As the FAA filed it
(-23) ON CLIMB-OUT FROM DETROIT CITY AIRPORT, CARGO DOOR OPENED ON AIRCRAFT AND TRAILED APPROX. 4 INCHES. CREW LANDED AIRCRAFT WITHOUT INCIDENT AT PTK, PONTIAC, MICHIGAN. PORTION OF CRAGO LINER FODDED #1 ENGINE. INVESTIGATION DETERMINED THAT DOOR WARNING/LATCH SYSTEM WAS OPERATING PROPERLY. OPERATOR'S CHIEF INSPECTOR OF MAINTENANCE REPORTED FAILURE OF ONE DOOR PULLEY AFTER SEVERAL MORE FLIGHTS. AIRCRAFT DOOR MANUFACTURER CAONSULTED BY OPERATOR AND FOUND NO INITIAL PROBLEMS WITH DOOR. DIRECTOR OF OPERATIONS FOR OPERATOR RE-EMPHASIZED DOOR OPERATION AND OPERATION TESTING OF WARNING SYSTEM WITH FLIGHT CREWMEMBERS.