What was found
DURING HEAVY CHECK MAINTENANCE FOUND CORROSION ON R/H AFT GUSSET PLATE AROUND PUCK MOUNT ON CROSSBEAM AT FRM90. REMOVED DAMAGED GUSSET PLATE, AT FR 90. FABRICATED, LOCATED, DRILLED AND INSTALLED NEW GUSSET PLATE, AT FR 90. SURFACE PROTECTION APPLIED.REF EMB SRM 51-40-08. A/C REMAINS IN CHECK.