What was found
CORRODED UPPER WING SKIN PROTECTION DOUBLER, LT WS 167.247 TO 191 FROM FRONT TO CTR SPAR. UPPER WING SKIN JUST OTBD OF THE NR 2 NACELLE, FROM FRONT TO CTR SPAR. REMOVE CORRODED DOUBLER & FABRICATE NEW PART FROM ORIGINAL MATERIAL, 2024 T3.071 ALUMINUM. PRIME NEW PART FOR CORROSION PREVENTION. APPLY SEALANT TO ALL FAYING SURFACES & INSTALL NEW DOUBLER, WET. USE FASTENERS OF THE SAME TYPE & DESIGN AS ORIGINALLY INSTALLED. APPLY FINAL PROTECTIVE FINISH COAT FOR CORROSION PREVENTION & CONTROL.