1. The aircraft has returned to its assigned altitude and course.
2. Alternate ATC instructions have been issued.
3. A crew member informs ATC that the TCAS maneuver has been completed.
NOTE-
TCAS does not alter or diminish the pilot"s basic authority and responsibility to ensure safe flight. Since TCAS does not
respond to aircraft which are not transponder equipped or aircraft with a transponder failure, TCAS alone does not ensure
safe separation in every case. At this time, no air traffic service nor handling is predicated on the availability of TCAS
equipment in the aircraft.

4-4-17. Traffic Information Service (TIS)
a. TIS provides proximity warning only, to assist the pilot in the visual acquisition of intruder aircraft. No
recommended avoidance maneuvers are provided nor authorized as a direct result of a TIS intruder display or
TIS alert. It is intended for use by aircraft in which TCAS is not required.
b. TIS does not alter or diminish the pilot"s basic authority and responsibility to ensure safe flight. Since TIS
does not respond to aircraft which are not transponder equipped, aircraft with a transponder failure, or aircraft
out of radar coverage, TIS alone does not ensure safe separation in every case.
c. At this time, no air traffic service nor handling is predicated on the availability of TIS equipment in the
aircraft.
d. Presently, no air traffic services or handling is predicated on the availability of an ADS-B cockpit display.
A "traffic-in-sight" reply to ATC must be based on seeing an aircraft out-the-window, NOT on the cockpit
display.

4-4-14

ATC Clearances and Aircraft Separation