What was found
DURING A-9 CHECK, WO 16376144 EXTERNAL DVI OF FUSELAGE SKIN, FORWARD SERVICE DOOR (R1) FOUND 1INCH CRACK ON AFT LWR CORNER AFTER REMOVING AFT SCUFF PLATE. , FOUND CRACK TOTAL LENGTH 3.5 INCHES,FOUND TO BE OUT OF LIMITS. CALLING . MAINTENANCE REPAIRED CRACKED SKIN AND BEARSTRAP IAW B767 53-10-01, REPAIR 1. AIRCRAFT OUT OF A-9 CHECK AND RETURNED TO SERVICE.