AIRCRAFT NACELLE COMPRISING A WATERTIGHT BOX AND A DOOR OPENING THE BOX ON THE OUTSIDE

The invention relates to a nacelle (102) comprising a cowl (202) having a window (204), a box (206) around the window (204) and containing a hydrogen conditioning device (20), a door (208) mounted pivotally on the cowl (202) between a closed position and an open position, an actuation system (250) for moving the door (208) from the closed position to the open position, hydrogen presence detection means (52) in the box (206), and a control unit (54) arranged to control the actuation system (250) in opening as a function of the information delivered by the detection means. [0002] With such an arrangement, if hydrogen is detected in the box, the door opens to allow hydrogen evacuation to the outside of the aircraft.