As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION ON AFT PASSENGER CABIN FLOOR SUPPORT Z ANGLE LOCATED AT BS 900 AND LBL 37. REPLACED Z ANGLE PER AARD 51-00-05-1 AND DWG 147A5700. **SUPPLEMENTAL REPORT FOR AALA202210181062: ENGINEERING REVIEWED THIS EVENT AND DETERMINED THE CORRECT LEVEL WAS LEVEL 2 NOT LEVEL 1. SECTION 7 CORROSION LEVEL FIELD WAS CORRECTED ACCORDINGLY**