YTread Logo
YTread Logo

Boeing 737NG (600/700/800/900ER) - Traffic Collision & Avoidance System (TCAS) | CBT

Jul 16, 2023
descend descend clarify conflicts the

traffic

alert and

collision

avoidance

system

or

tcas

helps maintain safe separation from

traffic

provides alerts, flight path guidance and traffic displays to the flight crew

tcas

is independent of ATC

system

s on the ground PCAS information is displayed on the captains and First Officers' internal and external display units' voice alerts are transmitted through two overhead flight deck speakers. TCAS issues voice alerts. TCAS displays traffic advisories and alerts to captains and first officers' navigation screens. The TCAS also displays vertical flight path guidance commands to captains and the first officer's attitude indicators. TCAS and the mode S transponder calculate the range and altitude of other transponder-equipped aircraft.
boeing 737ng 600 700 800 900er   traffic collision avoidance system tcas cbt
With this information, TCAS can estimate the point. in which your aircraft and a different aircraft will be closer to each other tcas provides a three dimensional area of ​​protected airspace around the aircraft is calculated from the altitude range and speed the dimensions of this area are constantly changing but is shown here as a sphere a traffic advisory or ta is a caution level alert occurs if tcas estimates that another aircraft will become a threat the TA occurs approximately 45 seconds before the aircraft is at the closest approach traffic point a voice tells the crew to look for traffic a resolution advisory or ra occurs if the tcas estimates that the two aircraft will not have sufficient separation the ra occurs approximately 25 seconds before the two airplanes are at their closest approach point descend descend descend tcas gives a voice command and displays vertical flight path guidance commands on the attitude indicators clears the conflict notice that traffic climbed to a higher altitude while your aircraft was descending if the two aircraft have tcas add a transponder installed mode coordinated commands are given a voice tells the crew when the traffic conflict has disappeared Oncoming traffic is a different aircraft that is not identified as TA or RA and is less than six nautical miles and 1,200 feet vertically if an aircraft is less than six nautical miles but does not provide altitude information tcas identifies it as Proxima traffic there is no voice alert with Proxima traffic other traffic is an aircraft that has not been identified as tar or proximate is more than six nautical miles or more than 1200 feet vertically from your aircraft no voice alerts tcas cannot detect or provide traffic

avoidance

information for aircraft not equipped with a transponder when tcas is off a t-cass off annunciation is displayed on the tcas navigation screen is activated with the transponder mode selector normally operates tcas and t a r a mode in this position the transponder is on and the ta and ra alerts are armed select t-a-r-a mode the tcas off The annunciation is removed to show that tcas is on a TFC switch on top of navigation The range selector is used to display or remove TCAS information on the navigation screen.
boeing 737ng 600 700 800 900er   traffic collision avoidance system tcas cbt

More Interesting Facts About,

boeing 737ng 600 700 800 900er traffic collision avoidance system tcas cbt...

Press the traffic switch. TFC is displayed here on the navigation screen. Shows that TCAS information has been selected to display. A second press of the traffic switch deletes the TCAS information. A traffic voice alert is heard when tcas calculates a TA. The amber out of range message shows that the traffic is further than the range set on the Ifas dashboard. Select a range of 20 miles. The out of scale message changes to traffic. An amber traffic target shows the position of the traffic a plus sign shows the traffic is above your aircraft and the numbers show the relative altitude separation in hundreds of feet in this example the traffic is 900 feet above your altitude and the up arrow shows that the other aircraft is climbing at more Flight path changes of more than 500 feet per minute are not necessary for a TA attempts to make visual contact TCAS and weather radar can be operated at the same time show weather radar returns weather radar display does not change tcas displays descend descend descend resolution The warning is displayed as a red square in this example traffic is 300 feet above you.
boeing 737ng 600 700 800 900er   traffic collision avoidance system tcas cbt
If there is no up or down arrow, then the traffic vertical speed is less than 500 feet per minute, you must maneuver the airplane to obtain a resolution advisory or bank angle. The attitude should be adjusted outside the area outlined by the red vertical guide symbol. First disengage autopilot. Move the aircraft quickly and smoothly out of the area outlined in red. The maneuver is not aggressive or sudden. You can continue to adjust pitch attitude and vertical speed while staying outside the red outlined area, always try to establish visual contact with traffic. TCAS does not provide lateral flight path guidance.
boeing 737ng 600 700 800 900er   traffic collision avoidance system tcas cbt
Continue to follow the flight director's turn commands unless you see traffic and a turn maneuver is necessary. the flight director's pitch command. continues to display the pitch attitude necessary to fly the flight plan's vertical flight path is different from the tcas guidance ra ignores the flight director's pitch commands during an RA and maneuvers the airplane to stay outside the area outlined in red fixes the conflict when you are clear of traffic a voice announces that ra has finished the ra guidance is removed from the attitude indicator and the ra symbol changes to a TA symbol returns to its assigned altitude when the tcas event is completed and activates the autopilot when traffic is not a threat it becomes Proxima traffic.
Proxima traffic displays as a solid white diamond as the traffic continues moving away, changes to other traffic and displays as a hollow white diamond. In this example, traffic has leveled off at 2000 feet above your plane and is moving away. from you descend descend descend descend an alert is displayed without heading if tcas cannot calculate the relative heading of the traffic because the relative heading is not known the alert is displayed in text format without any symbol to show your location the red ra tells you that the the alert is a resolution notice the traffic is at a distance of 4.9 nautical miles 400 feet above your aircraft and is climbing at more than 500 feet per minute because the no-course alert is an RA, the voice alert is heard and the red vertical guide appears The symbol is displayed on the attitude indicators, as before disengaging the autopilot and maneuvering the aircraft out of the area outlined in red.
Try to watch the traffic. Traffic may show many aircraft. You have identified a second possible threat as a directionless TA relative course and course. are unknown, traffic is 5.2 nautical miles away, 2100 feet below you and climbing at over 500 feet per minute because this is just a TA, continue flight path for ra, clarify conflict , tcas calculates that the distance from the first traffic conflict is sufficient the ra changes to TA and the vertical guidance symbol is removed from the attitude indicators returns to the assigned altitude and activates the autopilot tcas now calculates that the first traffic conflict alert traffic is not a threat and cancels TA the second alert moves up one line on the screen when the second traffic alert is not a threat, it is also removed from the navigation screens tcas does not show heading alerts for upcoming traffic or other traffic now let's look at some other ra screens and guidance commands descend cross descend descend cross the t-cas provides an RA for traffic currently below your aircraft and in a climb at over 500 feet per minute.
Note that when traffic is below your aircraft, the altitude data has a minus sign and is displayed below the ra traffic symbol. The attitude indicator commands a descent, descend, cross, tells you that your aircraft will descend through traffic altitude, disengage the autopilot and climb, increase descent, increase descent, increase descent, warns you that the TCAS has calculated that your descent speed is not sufficient to remain safe traffic separation reduce descent reduce descent tcas calculates that the increase in descent speed is too much vertical guidance on the attitude indicator changes to a climb and the voice command is reduced in descent a recommended technique is to use a pitch attitude that places the aircraft symbol outside the area outlined in red remember to always try to see the traffic clear the conflict when traffic separation increases tcas cancels the ra the traffic symbol changes a ta returns to the assigned altitude and activates the autopilot climb Cross climb climb Cross climb ra guidance on the attitude indicator orders a climb climb Cross climb tells you that your aircraft will climb through the altitude of the traffic maneuver out of the area red descend descend descend descend here is a condition where the traffic is above you and in a climb and t-cas gives a RA command to descend again, disengage the autopilot and fly out of the red area, tcas continues to monitor the traffic and he calculates that the other plane has begun a descent that will bring it too close to his plane. climb climb now climb climb now tcas calculates the traffic path again and gives a different vertical guidance ra on the attitude indicator changes to climb and climb climb Now orders an immediate climb for safe separation try to establish visual contact with the traffic clear the conflict when clear of traffic ra is canceled and traffic display changes to ta return to your assigned altitude and engage autopilot all tcas alerts are inhibited by gpws and wind shear alerts increase descent ras are inhibited below 1450 feet radio altitude descend Ras are inhibited below one thousand feet radio altitude if you are descending and below 1200 feet radio altitude if you are climbing, all Ras are inhibited below 900 feet radio altitude if you are in a descent and below 1100 feet radio altitude if climbing, all TCS voice alerts are inhibited below 900 feet radio altitude if in a descent and below 1100 feet radio altitude if on a climb TCAS radio altitude inhibitions are examined here.
There are several announcements for non-normal TCAS conditions. The statements inform you only about the system condition and a crew procedure. not required when the traffic switch is pressed and the transponder mode selector is in a position other than just ta or t-a-r-a the tcas off Annunciation is displayed on the navigation screen when the traffic switch and selector are pressed transponder mode is in t- launch position the TFC annunciation is displayed on the navigation screen descend descend descend descend the tcas fails Annunciation on a navigation screen shows that the tcas is unable to supply data on the attitude indicator or the navigation display descend descend the tcas voice speakers continue to function normally with this malfunction in the event of an engine failure the TA solo mode must be configured to avoid RA climb commands which may be more than a TA solo engine performance also le tells other aircraft that you have limits to your operations ra the ATC control panel tcas controls the transponder the transponder increases the signal of the radar used in air traffic control the ATC code selector and code indicator are easy to use the selector altitude source to select an error data source for the altitude data the transponder selector selects a transponder the transponder in use is displayed in the code indicator window standby no signal is transmitted if the mode selector is in the altitude reporting disabled position, the transponder continues to function but altitude reporting stops. tcas is also off to operate the transponder without tcas set the mode selector to altitude reporting on the ATC fault light illuminates to show a transponder defect thanks

If you have any copyright issue, please Contact