As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A MAINTENANCE VISIT FOUND 4 CRACKS AT AFT LWR CORNER OF MCD APPROX 3/8" LONG, DAMAGE EXCEEDED LIMITATIONS IAW DC-8S RM. /////CORRECTIVE ACTION///// FABRICATED PART AND INSTALLED IAW DC-8S RM 51-1-20D, 51-1-21A AND DWG SR08530027.