When a flight is obliged to land earlier than expected after developing a technical problem, the aircraft concerned will often need to reduce its weight before doing so by jettisoning or "dumping" fuel. All fuel dumping operations are conducted at a prescribed minimum altitude. Skyguide communicates all cases of fuel dumping on behalf of the FOCA, which is responsible for ensuring the due observance of the corresponding regulations and for assessing the environmental impact of such activities.
Further information by Federal Office of Civil Aviation
