Failure analysis of a lift gear shaft: Application of the FITNET FFS procedure fatigue module

This paper analyses the failure of a lift gear shaft, which happened when the lift was carrying three people. Fortunately, the safety systems worked and there were no serious injuries, but the authorities demanded an investigation into the causes of the accident. The analysis was performed using the FITNET FFS fatigue module, and improper working conditions have been identified as the major cause of the accident.