We are pleased to announce the availability of the following draft EUROCAE document prepared by EUROCAE WG-75 “Traffic Alert and Collision Avoidance Systems (TCAS)” for Open Consultation: ED-256 Vol. I “Minimum Operational Performance Standards for Airborne Collision Avoidance System X (ACAS X) (ACAS Xa and ACAS Xo)”.

This document sets forth minimum operational performance standards for the Active (Xa) and special Operations (Xo) system variants of Airborne Collision Avoidance System X (ACAS X) equipment. ACAS X is intended to improve air safety by acting as a last-resort method of preventing mid-air collisions or near mid-air collisions (NMAC) between aircraft. By utilizing surveillance information from Secondary Surveillance Radar (SSR) and ADS-B technology, ACAS X equipment operates independently of ground-based aids and air traffic control (ATC). Aircraft equipped with ACAS X have the ability to interrogate airborne transponders and receive ADS-B Messages to determine the location of other aircraft in the vicinity and assess the risk of collision.

The document as well as the forms are posted on the EUROCAE workspace. You are invited to review the proposed draft and complete the comment form. Early replies are encouraged.

All comments must be submitted by 4/24/2018 12:00:00 AM.