What was found
DURING ROUTINE C CHECK, FOUND INTERCOSTAL A HOLE IN THE RADIUS AT STATION 1390 ABOVE LONGERON 28 LEFT. REMOVED DAMAGED INTERCOSTAL. FABRICATED NEW INTERCOSTAL, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, AND INSTALLED NEW INTERCOSTAL IAW DC8 SRM 51-1-21A, 51-1-21D, 51-1-8, AND DOUGLAS DRAWING 5750771.