Inspection records for the December 2010 wheelset maintenance activity and wheel change on wheelset number 7E5S 831444 were not available. It is a requirement specified in Pacific National's Wagon Maintenance Manual that records be retained for a period of 12 years.
ATSB is satisfied that the actions taken by Pacific National have addressed the safety issue.
Pacific National has reinforced the requirement to wheel set overhaul contractors of the requirement to maintain records for a period of 12 years.