As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A HEAVY MAINTENANCE CHECK, THE INTERCOSTAL AT STATION 1904 TO 1921 LBL 6 WAS FOUND TO HAVE A CRACK ON TOP. REMVOED CRACKED INTERCOSTAL FABRICATED IAW DAC DWG AGA7751. HEAT TREATED LOCATED DRILLED DEBURRED ALODINED AND PRIMED IAW DC10 SRM 512101 AND INSTALLED IAW DC10 SRM 513301 VOL 2.