What was found
DURING C-CHECK, ELONGATED HOLES WERE FOUND COMMON TO THE LT ANGLE OF THE VERTICAL STABILIZER FRONT SPAR. FOUR OF THE HOLES ARE THE FIRST, FOURTH, FIFTH, AND SIXTH ABOVE ZFS=52. ONE OF THE HOLES IS THE FOURTH HOLE BELOW ZFS=52. ER/A 529591-14AD SECT I WAS ACCOMPLISHED.