As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE THE ACFT IS IN HEAVY CHECK - FOUND LT FLOOR DOUBLER BETWEEN FRAMES 19/20 CORRODED. REMOVED AND INSTALLED OF LT FLOOR DOUBLER BETWEEN FRAMES 19/20. REF SRM 51-45-00, SRM 51-40-05. APPLIED SURFACE PROTECTION TO LT FLOOR DOUBLER BETWEEN FRAMES 19/20. REF SRM 51-23-06 CPM 51-25-00. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.