ATC
JAA: pilots must follow ACAS RAs
Europe’s Joint Aviation Authorities (JAA) want to require pilots to respond to resolution advisories (RAs) from airborne collision avoidance systems (ACAS)

Europe’s Joint Aviation Authorities (JAA) want to require pilots to respond to resolution advisories (RAs) from airborne collision avoidance systems (ACAS) in all circumstances. On March 1, the regulator issued a notice of proposed amendment (NPA) for JAR-OPS 1.398 rules covering ACAS operations. The requirement to respond to all RAs would apply to all JAR-OPS 1 operators, including executive charter firms and any corporate flight departments that hold commercial aircraft operators certificates. The comment period will end on June 1.

Currently, JAR-OPS 1.398 allows pilots not to respond to an RA if “the intruder (aircraft) has been identified and determined not to be a threat.” The regulator included this clause in the belief that crews would otherwise have to respond to an excessive number of “nuisance” RAs.

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