What was found
DURING C-2 CHECK, INSPECTION REPORTED NR 2 ENGINE PYLON AFT UPPER THREADED SLEEVE AT RIB 10 NUT BACKING OFF AND LOCK WASHER NR 103 DAMAGED, AFT PYLON-TO-WING ATTACH FITTING. REMOVED DAMAGED LOCK WASHER IAW AMM 54-51-17, SUBTASK 54-51-17-481-050, AND INSTALLED REPLACEMENT LOCK WASHER IAW AMM 54-51-17-400-002 AND EA A8-54R-1692.