What was found
NR 4 PYLON THRUST REVERSER UPPER CENTER TRACK WORN AT AFT FLANGES. WELDED TRACK IAW ABX DWG C89R01, COUNTER BORED TRACK IAW DWG 9753006 AND INSTALLED TRACK IAW DC8 SRM 51-3-0.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 4 PYLON THRUST REVERSER UPPER CENTER TRACK WORN AT AFT FLANGES. WELDED TRACK IAW ABX DWG C89R01, COUNTER BORED TRACK IAW DWG 9753006 AND INSTALLED TRACK IAW DC8 SRM 51-3-0.