Recommendation Date
Recipient Name
KiwiRail
Text
On 26 March 2025, the Commission recommended that KiwiRail review and improve the maintenance and inspection of safety-critical components of the carriage-coupler system to ensure they remain safe to operate.
Reply Text
This recommendation is accepted. KiwiRail has completed design, manufacture, and trial installation of improved eye bolts. Improvements include material choice, reduction of stress raisers and thread root surface finish. Installation of new eye bolts on in-service carriages begins 28th April 2025. The eye bolts will then be removed for inspection annually.
Related Investigation(s)