impact of TCAS on air traffic control + phraseology

CARs permit pilots to deviate from an ATC instruction or clearance in order to follow TCAS RAs.

True

ControIIers are responsible for providing separation between the aircraft responding to an RA and any other aircraft affected as a direct consequence of the manoeuvre initiated by the RA.

False

Aircraft that manoeuvre as a result of an RA and that may affect ATC clearance will notify controllers when _____ or ____.

beginning the manoeuvre, as soon as workload permits

When the RA has been resolved, the aircraft must advise ATC that they are _____ or _____.

returning to their previously assigned clearance, subsequent amended clearance

Immediately after completing the collision avoidance manoeuvre, pilots must return to _______, or comply with ______.

the last ATC clearance they had received and accepted, any new or revised clearances received upon reporting clear of conflict

What term should pilots use to advise ATC the aircraft has completed its RA manoeuvre and returned to its original clearance?

“CLEAR OF CONFLICT”

What should controllers do when aircraft perform TCAS manoeuvres?

• Provide traffic alerts

• Inform your supervisor

• Advise other aircraft

• Resume responsibility for separation

Until the pilot reports returning to the terms of the current ATC clearance or instruction, _______.

do not attempt to modify the aircraft’s flight path

If you become aware that an aircraft has deviated from an ATC clearance or instruction as a result of an RA, ______.

inform your immediate supervisor

If an aircraft is responding to an RA, other aircraft are aware and it is not necessary to advise them of this.

False

Resume responsibility for separation after an aircraft has responded to an RA when:

• The aircraft informs you that:

  • The manoeuvre is complete

  • It has returned ______

  • It is following ______

• You have verified that ______ exists

to its assigned altitude, an alternate clearance, separation

What information does the TCAS display provide to the pilot to resolve a potential collision?

The vertical rate of climb or descent necessary to avoid a collision

When providing traffic alerts, do not attempt to modify the aircraft’s ____ until the pilot reports returning to the terms of the current ATC clearance or instruction.

flight path

As a controller, what action should you take immediately after a pilot has informed you of a manoeuvre based on an RA?

All of these actions

What kind of advisory is issued by TCAS 15 to 35 seconds before a potential collision if an intruder aircraft has a Mode C or S transponder?

RA

If a intruder aircraft does not have a transponder or has a Mode A transponder only, what will the response of TCAS II be?

No tracking or detection