Recommendation: 2014-018

Basis for Recommendation

Maintenance risk management processes in Alstom had not identified potential consequences of fretting between the braking hoses and traction cables and there were also no procedures directly related to the repair of traction cables, therefore the RAIU make the following recommendation:

Recommendation

Transdev should ensure that Alstom, as the contracted VMC, review the defect priority matrix with regards to damage to traction cable insulation and fretting between these components and hydraulic hoses. In addition to this, maintenance procedures should be introduced to specify actions for the repair of traction cables