New-build CAF units hit by yaw damper mounting bracket failures
By Tony Miles
A SIGNIFICANT number of CAF multiple units working for Northern were taken out of service at the beginning of April after the failure of a yaw damper mounting bracket, which resulted in sections of the vehicle’s underbody structure being broken away.
An urgent National Incident Report (NIR) issued on April 3 revealed that the bracket had detached from the body on vehicle 102121, on Class 195 No. 195121.
The failure had been found during a maintenance exam at Newton Heath depot. The report stated:“The yaw damper bracket which attaches to the vehicle body was found to have become detached. The bodyside damper bracket secures to the body through a T-slot arrangement.”