As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REPLACEMENT OF THE AFT CARGO DOOR BALANCE SPRING MOUNTING BRACKET, MAINTENANCE FOUND THREE ELONGATED RIVET HOLES. ***** AIRCRAFT REMOVED FROM SERVICE ***** MHI WAS CONTACTED AND REO 601R-53-61-8234 WAS ISSUED. THREE FASTENER LOCATIONS WERE OVERSIZED AND NEW BRACKET INSTALLED. DTA COMPLETE, NOT DTI REQUIRED.