FMEA used in assessing warranty costs

This article presents a proposal of procedure that enhances standard failure mode and defect analysis (FMEA) and at each mode of failure it analyses other information that are necessary for estimation of warranty costs. In addition to standard analyzed information, at each failure mode it further evaluates an assumed number of a given type of failure during a warranty period, method of its repair, its labor consumption and costs needed for spare parts and material. It also presents a model that based on these data enables to carry out an estimate of warranty costs of a product as a whole.