IRImplementing rule
NCO.SPEC.MCF.100Levels of maintenance check flights
Before conducting a maintenance check flight, the operator shall determine the applicable level of the maintenance check flight as follows:
(a)a “Level A” maintenance check flight for a flight where the use of abnormal or emergency procedures, as defined in the aircraft flight manual, is expected, or where a flight is required to prove the functioning of a backup system or other safety devices;
(b)a “Level B” maintenance check flight for any maintenance check flight other than a “Level A” maintenance check flight.
IR · NCO.SPEC.MCF.100 — Regulation (EU) No 965/2012 · Regulation (EU) 2019/1384 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026