IRImplementing rule
NCO.SPEC.155Airborne collision avoidance system (ACAS II)
Notwithstanding NCO.OP.200, the ACAS II may be disabled during those specialised tasks, which by their nature require the aircraft to be operated within a distance from each other below that which would trigger the ACAS.
IR · NCO.SPEC.155 — Regulation (EU) No 965/2012 · Regulation (EU) No 379/2014 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026