What was found
WHILE THE ACFT IS IN HEAVY CHECK - FOUND CORROSION ON PANEL SUPPORT AT FR 87 FWD OF RT SHEAR PANEL. REMOVED AND REPLACED PANEL SUPPORT AT FR 87 FWD OF RT SHEAR PANEL PER SRM 51-40-08. RESTORED FINISH REF SRM 51-23-04, 51-23-05, 51-23-06. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.