During November 1992, Hoofddorp train station was undergoing reconstruction, especially the southern section that was being remodelled due to the extension of the railway yards in the area.

This meant that the arc jets were made tighter with this replacement material, with sharper bends and consequently a lower maximum speed.

The first accident took place on 28 November 1992, when an express train from Paris-Nord to Amsterdam Centraal that was diverted through the Hoofddorp-Schiphol section, pulled by a NMBS HLE 25.5, passed through the S-curve at a speed of 120 km/h.

The cause of this accident was the lack of attention by the train driver, who, despite having seen the speed warning signs, did not brake in time for the section.

Later that day, the InterCity 2127 from Amsterdam CS to Vlissingen, made out of Koplopers 4224 and 4038 (seven carriages in total) passed the same area where the international train had derailed.

At around 7:12 a.m., the first carriage began to tilt and overturned, falling onto the ground at a 180-degree angle compared to the rest of the trainset.

A fast train also oversped in a section undergoing reconstruction, due to poorly illuminated restriction boards.