What was found
DURING HEAVY CHECK MAINTENANCE FOUND SUPPORT IS CORRODED AT FR 80 BETWEEN STRINGERS 27R AND 28R. REMOVED AND REPLACED SUPPORT AT FR 80 BETWEEN STRINGERS 27R AND 28R REF. EMB SRM 51-40-08. RESTORED SURFACE PROTECTION ON SUPPORT AT FR 80 BETWEEN STRINGERS 27R AND 28R, REF SRM 51-23-06, CPM 51-25-00. A/C REMAINS IN CHECK.