The fractures have been located along the threaded section of the mounting tube which may be obscured by the locking nut. There is no information to suggest that this fault is limited to just this Hyundai model. Operators of these buses should have their buses inspected immediately.
For more information about this matter, and / or bus safety legislative requirements in Victoria, please contact Andrew Chlebica, Manager Compliance and Information, on (03) 9655 6873. This advice is effective immediately.
Approved by Stephen Turner, Director, Bus Safety.