bose-x I think I know who you work for when you are in Spain. The 30 Euros is a call out fee,however, it is charged per aircraft, not per call out. My understanding is that in order to be allowed to own and operate a refueling truck it is necessary to have an AOC. In FTE's case it would be complicated by the need to have two vehicles - one for Avgas and the other for Jet A1.