What was found
DURING ACCOMPLISHEMENT OF SB ATR 42-57-0044R2 AD 97-26-11, FOUND CORROSION DAMAGE ON THE LEFT WING REAR SPAR LOWER EXTRUSION FOUND OUT OF LIMITS. THE MANUFACTURE WAS CONTACTED AND A TEMPORARY REPAIR WAS PROVIDED ALLOWING TO FLY THE AIRCRAFT TO A BASE WHERE THE NECCESSARY REPAIRS COULD BE PERFORMED. THE TEMPORARY REPAIR WAS ACCOMPLISHED IAW THE MANUFACTURER DRAWING AIRAMS/T/ATR/31761/98. A MECHANIC WAS ONBOARD THE AIRCRAFT TO PERFORM A VISUAL INSPECTION AFTER EACH LANDING IAW THE MANUFACTURER PROCEDURES. (M)