As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE INSPECTION FOUND THE COCKPIT UNDERFLOOR ACCESS HATCH SKIN HAS .5 INCH CRACK UNDER THE LOCK PIN BRACKET BETWEEN THE MOUNTING HOLES. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPAIRED IAW EO EM-52MR-239. THE AIRCRAFT WAS RETURNED TO SERIVCE.