What was found
DURING 'D' CHECK, MAINTENANCE FOUND A CRACK IN THE SKIN OF THE NR 6 SLAT BETWEEN STATION 166.5 AND STATION 161.5 AT FORWARD FASTENERS. MAINTENANCE REMOVED THE FASTENERS, STOP DRILLED, FABRICATED REPAIR DOUBLER AND INSTALLED PER SRM 51-20-04, 51-10-2 AND MM 51-20-151.