What was found
(CAN) NLG EMERGENCY CABLE GUARD PIN THAT ENSURES THE EMERGENCY RELEASE CABLE OF THE NLG UPLOCK WILL STAY SECURED ON THE PULLEY, IS MISSING, NOT BEEN INSTALLED. AFFECTED 170 ACFT AFFECTED. CONTAINMENT IN-HOUSE, LINE CHECK, WITH ENGINEERING ASSESSMENT, RECOMMENDATION "NOT ACCEPTABLE". IN-SERVICE ACTION: SB REQUIRED.