What was found
LEFT WING TOP SKIN HAS CORROSION AT REAR SPAR FASTENER, 6" OTBD OF RIB-4. LT WING CORROSION REMOVED BY BLENDING, NDT INSPECTED (NIL FINDINGS), NEW OVERSIZE TAPERLOCK FASTENERS INSTALLED AND SURFACE PROTECTION RESTORED. REF EA 6-5730- 145610.