As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WE HAVE FOUND THE ELEVATOR AUTOPILOT SERVO LT CABLE WITH BROKEN STRANDS ON 3 SUCCESSIVE AIRCRAFT THAT WERE UNDERGOING A PHASE 5 INSPECTION. ON CABLE HAD 50 PERCENT FRAYING. THE FRAYING WAS FOUND WHERE THE CABLE PASSES THROUGH A DOUBLE CABLE JOGGLE AT FUSELAGE STA 428.50 AND CAN BE DIFFICULT TO DETECT. THE 3 SUBJECT AIRCRAFT HAD 7495, 8856 AND 13393 HOURS TOTAL TIME. THE IPC REFERENCE FOR THE CABLE IS 22-10-00, FIGURE 1, PAGE 3, ITEM 85.