What was found
OTBD HAT CHANNEL HAS CORROSION AROUND NUT PLATE HOLES. REMOVED CORROSION. FOUND TO BE OUT OF LIMITS. FABRICATED, LOCATED AND DRILLED HOLES, TREATED, PRIMED AND INSTALLED NEW HAT CHANNEL, REFERENCE DWG NR 65-19606/ITEM NR 19, CLASSIFIED AS A MAJOR REPAIR.