It was likely that, because of the Civil Aviation Safety Authority’s policy at the time, their engineering assessment of the tie rod design for inclusion in the manufacturer’s Australian Parts Manufacturer Approval did not consider the service history of the original tie rods or identify that they were subject to airworthiness directive AD/DH 82/10. Consequently, the assessment team was likely unaware that the original tie rods were subject to a life limitation, and did not require the life limits for the replacement tie rods to be established.
As a result of the safety action taken by the United Kingdom Civil Aviation Authority, New Zealand Civil Aviation Authority and CASA in response to safety issue AO‑2013‑226‑SI‑01, all JRA-776-1 tie rods were removed from service. This action minimises the safety risk associated with this safety issue.
