What was found
DURING D-CHECK, FOUND THE AFT FUSELAGE SKIN AT STA 996 AND LONGERON 23L CRACKED .3750 INCH FROM EDGE OF SKIN TO FASTENER HOLE. FABRICATED INTERNAL AND EXTERNAL DOUBLERS, A FILLER, CLEANED CORROSION AND INSTALLED IAW SRM 53-04 AND 53-01, PG 8.