What was found
FTW - WHEN L-1 DOOR IS FULLY OPEN, HOLD OPEN HOOK IS NOT ALIGNED WITH FITTING IN FUSELAGE, HOOK IS CHAFING AT BOTTOM OF OPENING. FOUND CRACK AT 12:00 POSITION. LOCATED AND DRILLING EXTERNAL DOUBLER AND INTERNAL DOUBLERS, TWO. INSTALLED COMPLETE IAW SRM DC9 53-04. (M)