What was found
DURING A MAINTENANCE VISIT, FOUND CORROSION DAMAGE TO LONGERON 31 LEFT BEYOND LIMITS IAW DC-8 SRM, AT STA 661. REMOVED DAMAGED SECTION, TREATED AREA IAW DC-8 SRM. FABRICATED AND INSTALLED 2 REPAIR CHANNELS IAW FAA APPROVED TIMCO DER ENGINEERING SKETCH REO-041871R AND DC-8 SRM 53-2-0 FIGURE 1F.