What was found
DURING A HEAVY MX INSP, THE LWR WING PLATE WAS FOUND EXFOLIATED ABOVE THE LT PRIMARY HEAT EXCHANGER. DAMAGED AREA APPROX 6" X 5", REMOVED ALL CORROSION, BEYOND MFG LIMITS. MACHINED PAD-UPS TO ACCOMMODATE EXTERNAL DOUBLER. SPOT FACED SANDWICHED FASTENER HEADS TO ACCOMMODATE FILLER WASHERS. PERFORMED HIGH-FREQUENCY EDDY CURRENT OF REWORKED AREA TO ENSURE NO CRACKS OR CORROSION. SHOT PEENED REWORKED AREAS. FABRICATED A 0.160" EXTERNAL DOUBLER, 2 EA 0.125" INTERNAL DOUBLERS, AND 2 EA 0.125" STRINGER STRAPS (ALL FROM 2024 T3). CORROSION PROTECTED REWORK AND ADJACENT AREA, INSTALLED DOUBLERS WET WITH BMS 5-95 AND BMS 5-45 SEALANT.