What was found
DURING ROUTINE C-CHECK INSPECTION OF THE UPPER AFT FUSELAGE EXTERNAL PLATING, A CRACK WAS IDENTIFIED AT FUSELAGE STATION 1541, LONGERON 17 RIGHT. REPAIR WAS ACCOMPLISHED BY CRACK CUT OUT, FABRICATION AND INSTALLATION OF A REPAIR FILLER AND EXTERNAL DOUBLER IAW THE DOUGLAS STRUCTURAL REPAIR MANUAL 53-2-1. (M)