Navigate / EASA
GM5 SERA.11014  ACAS resolution advisory (RA)

ED Decision 2016/023/R

In the case of an ACAS–ACAS coordinated encounter, the RAs complement each other in order to reduce the potential for a collision. Manoeuvres, or lack of manoeuvres, that result in vertical rates opposite to the sense of an RA could result in a collision with the intruder aircraft.