What was found
DURING INSPECTION OF EMPENNAGE, CRACK WAS DISCOVERED IN THE DOUBLER LOCATED JUST FORWARD OF STA 272, BULKHEAD. THE CRACK WAS IN THE RADIUS OF CUT-OUT AREA OF DOUBLER ON THE LEFT SIDE. INSPECTION OF OTHER AIRCRAFT IN THE FLEET FOUND 5 OTHERS WITH THE SAME DEFECTS, SERIAL NUMBERS RANGED FROM E2592 TO E2667, TOTAL TIME FROM 2,300 - 2,600 HOURS.