The ARTC’s inspection and maintenance practices were ineffective at identifying and correcting the deteriorating condition of track infrastructure exhibiting accelerated wear, such as 38A points at Spencer Junction.
The ATSB is satisfied that the timely implementation of remedial action such as more frequent condition monitoring and rectification of potential deficiencies within infrastructure will better manage and reduce the likelihood of a similar occurrence in the future.
The ARTC advised that works were planned for the upgrade of 38A points from 47 kg/m to 60 kg/m elements well prior to derailment of train 9614S, though installation did not occur until shortly after the derailment. Following the installation of the upgraded infrastructure, more frequent monitoring for wear rates of the point blade(s) was undertaken. After several months of condition monitoring it became evident that the track performance and wear rates could be managed as specified in the Code of Practice and the normal inspection schedule was reinstated.
The ARTC acknowledged that the incident had identified several areas where safety outcomes could be enhanced:
