What was found
DURING INSPECTION TO COMPLY WITH AD 2002-21-09 AND S/B 53-290 NOSE SKIN, STA 73, LBL 10, P/N 5911403-3 FOUND CRACKS ON THE AFFECTED FRAMES, P/N 9911505-5/-6/-7. THE -7 FRAME WAS CRACKED 0.0625 INCHES BEYOND THE 1.125 INCH LIMIT. THE MOD REQUIRED BY S/B 53-290 AND SR09530268-7013 COCKPIT REPAIR, FRONT WINDOW LOWER SILL SURROUND WAS ACCOMPLISHED. AIRCRAFT WAS RETURNED TO SERVICE AT THE COMPILATION OF MOD.