As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT FLOOR SUPPORT ANGLE CORRODED FOR COCKPIT FLOOR PANEL 221ALF. REMOVED FLOOR SUPPORT ANGLE AND LOCATED ALL HOLES EXCEPT 2EA LT & RT OTBD UPPER GUSSET ATTACH HOLES IAW 51-42-06-001-001 & DWG CC670-33052 HOLES IN NEW ANGLE. REDRILLED AND INSTALLED NEW ANGLE (AFT FLOOR SUPPORT FOR 221 ALF) IAW SRM 51-42-06-001-001-A01 AND 51-42-13-001-001-A01.