Frank was a teacher in the 6th year at the Sint-Lambertus primary school in Heverlee, Leuven. He accompanied the children of his class on a skiing holiday.
Also accompanying the children was a 70-year-old woman from Brasschaat. "Mamouche", as the children called her, was a monitor for the 43rd time. She had promised her husband and daughter that this would be the last time.
The press was kept at a distance both in Leuven and Brasschaat. The coach crash in a tunnel in Sierre, Switzerland, left 28 people dead: 6 adults and 22 children from primary schools in Lommel (Limburg province) and Heverlee.