SDO/AIA image sequences at different wavelengths for the SOL2021-02-18T18:05 event. From top to bottom: AIA 94 Å maps with in red the 50% contour of the Fe XVIII line complex maps (Del Zanna 2013), AIA 131 Å, AIA 193 Å, AIA 304 Å and AIA 1600 Å. The black dashed segment in the AIA 304 Å map represents the line that has been used for constructing the distance-time plot in Fig. 1. The black arrow indicates the above-the-loop location coinciding with the base of the jet and the electron acceleration site.