NCO.SPEC.MCF.125 Crew composition and persons on board

(a) The pilot-in-command shall identify the need for additional crew members or task specialists, or both, before each intended maintenance check flight, taking into consideration the expected flight crew member or task specialist workload and the risk assessment.

(b) The pilot-in-command shall not allow persons on board other than those required under point (a) during a ‘Level A’ maintenance check flight.