As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED C-12 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND THE CARGO DOOR FS902-TO-FS924 INTERCOSTAL RIB HAD MULTIPLE CRACKS AT LBL10 & RBL10, AND AT LBL28 AND RBL28. REPAIR BY REPLACEMENT ACCOMPLISHED IAW SRM CH51-60 AND 51-70.