What was found
ON TAKEOFF, CABIN DOOR POPPED OPEN ON TOP SIDE, RETURNED TO AIRPORT. REPLACED UPPER TOP DOOR HOOK AND CHANNEL ASSEMBLY REPLACED WORN DOOR HANDLE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON TAKEOFF, CABIN DOOR POPPED OPEN ON TOP SIDE, RETURNED TO AIRPORT. REPLACED UPPER TOP DOOR HOOK AND CHANNEL ASSEMBLY REPLACED WORN DOOR HANDLE.