On January 27, 2018, Bielecki, along with Denis Urubko, Jaroslaw Botor and Piotr Tomala led a rescue operation on Nanga Parbat to save climbers Élisabeth Revol and Tomasz Mackiewicz, who were stuck on the mountain. All 4 of them had been attempting a winter summit of K2, were brought to the mountain by helicopter. Bielecki and Urubko climbed over 1000m through the night to reach Revol. They succeeded in bringing Revol to safety, but, due to the severe weather conditions, were unable to save Mackiewicz. The K2 expedition ended with no success. Bielecki and his colleagues were awarded Legion of Honour, France's highest distinction for military and civil merits, for this rescue mission.