What was found
FOUND DURING 'ZERO B TRANSITION' CHECK AT AVBORNE HEAVY MAINTENANCE FACILITY, PRIOR TO THIS AIRCRAFT BEING ON THE KHA CERTIFICATE. TAIL SKID CAVITY BULKHEAD WEB AT STATION 1183 HAS CRACK ON LEFT SIDE 5 INCHES BELOW FLOOR. REMOVED EXISTING REPAIR AND INSPECTED IAW B727 NDT MANUAL PART 6 51-00-00 FIG 4. ROUTED OUT CRACK IAW B727 S/B 53-175. ACCOMPLISHED REPAIR IAW B727 S/B 53-175. (M)