Method for continuous in-flight management of a beam generator on board an aircraft, said aircraft comprising: - said beam generator emitting a light beam, - sensors, - a calculator, - a display device, and - a tracking device, said method comprising the following steps: - continuously acquiring a value of at least one parameter of said beam generator by means of at least one sensor of said sensors; - continuously acquiring a value of at least one parameter of said aircraft by means of at least one sensor of said sensors, said at least one parameter of said aircraft being distinct from said at least one parameter of said beam generator; - continuously estimating at least one piece of information relating to the reliability of said beam generator over a predetermined time period by means of said calculator, as a function, at the very least, of said successive values of said at least one parameter of said beam generator and of said at least one parameters of said aircraft, and of data from a stored history of said beam generator, and - displaying at least one indication relating to said beam generator on said display device, said at least one indication being dependent on said piece of information, characterised in that said method comprises the following steps: - determining a position of said aircraft by means of said tracking device, - determining parameters of said beam, said parameters of said beam being distinct from said at least one parameter of said aircraft and from said at least one parameter of said beam generator, - determining a safety distance (NOHD) relative to said light beam as a function of said parameters of said beam by means of said calculator, - determining at least one value relating to the risk of injury likely to be caused by said beam generator in at least one zone on the ground, as a function of said position of said aircraft, said safety distance (NOHD), said parameters of said beam and said piece of information relating to the reliability of said beam generator by means of said calculator, - at the time of said displaying step, said at least one indication relating to said beam generator is a function of said at least one value relating to the risk of injury associated with said at least one zone on the ground. - said beam generator emitting a light beam, - sensors, - a calculator, - a display device, and - a tracking device, - continuously acquiring a value of at least one parameter of said beam generator by means of at least one sensor of said sensors; - continuously acquiring a value of at least one parameter of said aircraft by means of at least one sensor of said sensors, said at least one parameter of said aircraft being distinct from said at least one parameter of said beam generator; - continuously estimating at least one piece of information relating to the reliability of said beam generator over a predetermined time period by means of said calculator, as a function, at the very least, of said successive values of said at least one parameter of said beam generator and of said at least one parameters of said aircraft, and of data from a stored history of said beam generator, and - displaying at least one indication relating to said beam generator on said display device, said at least one indication being dependent on said piece of information, - determining a position of said aircraft by means of said tracking device, - determining parameters of said beam, said parameters of said beam being distinct from said at least one parameter of said aircraft and from said at least one parameter of said beam generator, - determining a safety distance (NOHD) relative to said light beam as a function of said parameters of said beam by means of said calculator, - determining at least one value relating to the risk of injury likely to be caused by said beam generator in at least one zone on the ground, as a function of said position of said aircraft, said safety distance (NOHD), said parameters of said beam and said piece of information relating to the reliability of said beam generator by means of said calculator, - at the time of said displaying step, said at least one indication relating to said beam generator is a function of said at least one value relating to the risk of injury associated with said at least one zone on the ground.