Aircraft comprising: - at least one transport line (112a-b) in which dihydrogen flows, between, upstream a tank and downstream a consumer device, - for each transport line (112a-b), a burial channel comprising a gutter in which the transport line (112a-b) is fixed and having a first end by which the transport line (112a-b) coming from upstream enters into the gutter and a second end by which the transport line (112a-b) going downstream leaves the gutter, and - for each second end, an evacuation system fluidically connected between the second end of the gutter and the outside of the aircraft, the evacuation system comprising: - a first line with a proximal end, a distal end and a bend between said proximal end and said distal end, the bend constituting a low point for the first line, and the first line being fluidically connected to the second end of the gutter by said proximal end and emerging outside at an outer wall of the aircraft by said distal end, and - a second line with a proximal end and a distal end, the second line being fluidically connected to the bend by said proximal end and emerging outside the aircraft at an outer wall of the aircraft by said distal end, and, between the proximal end of the second line and the distal end of the second line, the second line having a downward slope. - at least one transport line (112a-b) in which dihydrogen flows, between, upstream a tank and downstream a consumer device, - for each transport line (112a-b), a burial channel comprising a gutter in which the transport line (112a-b) is fixed and having a first end by which the transport line (112a-b) coming from upstream enters into the gutter and a second end by which the transport line (112a-b) going downstream leaves the gutter, and - for each second end, an evacuation system fluidically connected between the second end of the gutter and the outside of the aircraft, the evacuation system comprising: - a first line with a proximal end, a distal end and a bend between said proximal end and said distal end, the bend constituting a low point for the first line, and the first line being fluidically connected to the second end of the gutter by said proximal end and emerging outside at an outer wall of the aircraft by said distal end, and - a second line with a proximal end and a distal end, the second line being fluidically connected to the bend by said proximal end and emerging outside the aircraft at an outer wall of the aircraft by said distal end, and, between the proximal end of the second line and the distal end of the second line, the second line having a downward slope. - a first line with a proximal end, a distal end and a bend between said proximal end and said distal end, the bend constituting a low point for the first line, and the first line being fluidically connected to the second end of the gutter by said proximal end and emerging outside at an outer wall of the aircraft by said distal end, and - a second line with a proximal end and a distal end, the second line being fluidically connected to the bend by said proximal end and emerging outside the aircraft at an outer wall of the aircraft by said distal end, and, between the proximal end of the second line and the distal end of the second line, the second line having a downward slope.