What was found
INSPECTION TYPE:D LT WING NR 6 SPOILER LWR 'H' FTG O/B LWR AREA NR 3 HOLE FROM BOTTOM FOUND CRACKED RUNNING UPWARD AND I/B DOWNWARD CRACK LENGTH APPROX 0.040 INCH FOR BOTH CRACKS. LT WING NR 6 SPOILER LWR 'H' FTG O/B LOWER LUG REPAIRED AS PER RS R57-51-36307 REV A. REPEAT INSPECTION IS REQUIRED AS PER RS R57-51-36307 REV A. REPAIR WITH MATERIAL 7075T6.100" REPAIR ANGLE. SIZE 6.125" X 3.25" REFER NRC 50350 FOR WORKING DETAIL AND REF UPS EO B747-5740-33436-A.