As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A BLOCK INSPECTION IN MSP, MAINTENANCE FOUND THE CARGO DOOR SKIN AT BOTH FORWARD AND AFT ENDS OF CARGO DOOR HINGE CHAFED APPROXIMATLEY .015 INCH BY 1.25 INCH. COMPLETED REPAIR BY FABRICATING AND INSTALLING REPAIR DOUBLERS TO AFFECTED AREAS IAW FAIRCHILD ARP 52-30-9130 DATED JUNE 20/91. (M)