As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTURE FROM KGEG, PILOT REPORTED THAT THE RH COWLING BECAME UNSECURED AFTER TAKEOFF AND WAS BARELY STAYING ATTACHED. PILOT DECLARED AN EMERGENCY AND AIR RETURNED TO KGEG. AFTER INSPECTION IT WAS DISCOVERED THAT THE COWLING HAD DAMAGED THE NACELLE AND THAT THE COWLING WAS BENT BEYOND REPAIR. MAINTENANCE REMOVED AND REPLACED DAMAGED RIGHT ENGINE NACELLE COVER.