What was found
STL - DURING SPECIAL CHECK, FOUND ONE AND TWO INCH CRACKS IN FUSELAGE SKIN BETWEEN RIVETS AT STATION 817, LONGERON R9, AND A 1 INCH FUSELAGE SKIN CRACK AT STATION 817, LONGERONS R7-R8. REPAIRED PER SERVICE BULLETIN A53-147, AND DRAWING J060143. (M)