MTM advised the ATSB that ‘after consideration and testing of other options including flashing marker lights, MTM is developing a modification for inclusion in the Comeng Life Extension Program to increase the intensity of the marker lights to a level compliant with the standard for Railway Rolling Stock Lighting and Rolling Stock Visibility, AS/RISSB 7531.3:2007, including provision of a system to enable the automatic operation of the emergency battery back up in the event of loss of overhead power’.
The ATSB accepts that the modification as proposed by MTM is a satisfactory risk mitigation measure. However, this measure is only applicable to the Comeng fleet. The Siemens trains in the fleet also do not meet the requirements of the AS/RISSB standard. Accordingly, the ATSB issues the following Safety Recommendation.