As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: AFTER TAKEOFF AND RAISING THE LANDING GEAR LEVER, THE LANDING GEAR WILL NOT COME UP, AIRCRAFT AIR INTERRUPTED BACK AND LANDED SAFELY AT CLE. FOUND MANUAL LANDING GEAR EXTENSION ACCESS DOOR NOT FULLY SECURE. SECURED ACCESS DOOR IN CLOSED POSITION REF FIM 32-30-00.