As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LIFTOFF, AT APPROX 250 TO 300 FEET AGL THE RT SIDE OF THE UPPER ENGINE COWLING CAME LOOSE AND BROKE OFF AT APPROX THE MIDDLE LT PORTION OF THE COWLING, FALLING TO THE GROUND. THE ACFT HAD UNDERGONE A 100 HOUR INSP ON THE ENGINE AT 6905.8 HRS. OWNER STATED NO ADDITIONAL MAINT SINCE THAT TIME.