What was found
DURING C-CHECK INSPECTION DISCOVERED EXFOLIATION CORROSION IN THE REAR SPAR CAP UPPER AFT FLANGES, SLIGHTLY INBOARD OF THE REAR STATION XRS 137 ON BOTH THE LEFT AND RIGHT WINGS. REPAIRED BY BLENDING OUT THE CORROSION, ALODNING, FR PRIMING AND FINISHED THE BLEND AREAS PER SRM CH 51 TO PROTECT AGAINST FURTHER CORROSION. INSTALLED FASTENERS USING TAPERED WASHERS AND SELF ALIGNING NUTS. ACCOMPLISHED IAW EVERGREENS ECRA NR 944-57-021-2 DATED 1-8-96. (M)