As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 600HR INSPECTION, THREE CRACKS FOUND AROUND TAIL BOOM BATTERY DOOR OPENING. TWO ON THE STRINGER RUNNING FORE & AFT ON THE BOTTOM OF THE DOOR OPENING & THE LARGEST OF THE THREE ON THE UPPER AFT CORNER OF THE DOOR ON THE PRIMARY SKIN OF THE TAIL BOOM.