What was found
DURING NR 1 DETAIL (WING) INSPECTION, THE LEFT NACELLE UPPER FORWARD KEEL (OUTBOARD) WAS FOUND TO HAVE 4 CRACKS ON FORWARD EDGE FLANGE. THESE CRACKS WERE FROM .375 INCH TO 1 INCH IN LENGTH BETWEEN RIVETS ON FORWARD EDGE FLANGE. AN APPROVED REPAIR IS BEING DEVELOPED AT THE TIME OF THIS WRITING. THIS SDR IS TO CLOSE OUT AN SDR DATED 5-23-95 WHERE THE LEFT NACELLE UPPER FORWARD KEEL (OUTBOARD) WAS FOUND CRACKED. THE AIRCRAFT WAS REPAIRED IAW APPROVED DATA AND RETURNED TO SERVICE. (X)