As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOTS REPORTED THAT THE DOOR POPPED OPEN ON TAKEOFF, 800 FEET. THE PILOT GRABED THE DOOR BY THE HANDLE TO PULL IT CLOSED AND THE HANDLE CAME OFF IN HIS HAND. PLASTIC SCREWS BROKE OOF A THE HEAD. RECOMMEND REPLACING HARDWARE WITH STEEL. (K)