On-site training in the time of pandemic required special safety measures, but OKOndt GROUP could arrange it successfully! In August 2020, the company's specialists spent several days in Turkey teaching customer's technical staff to perform testing of the rail track with the help of ultrasonic double rail flaw detector UDS2-73. The training also included night practice which showed that the ultrasonic rail testing equipment produced by OKOndt can be effectively used whenever it is necessary.