As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, THE RT ENG COWLING OPENED & THE TOP COWLING DEPARTED THE ACFT. THE PILOT WAS NOTIFIED & RETURNED. THE PILOT LANDED WITHOUT INCIDENT. MX INVESTIGATION IS STILL ON GOING, PRELIMINARY FINDINGS REVEALED INBD LATCHES WERE NOT SECURED. OPEN