Search Title


Do you know that your internet browser is out of date?

Your browser is out of date, and may not be compatible with our website.

Please use IE11, or download the latest version of Chrome, Firefox or Edge.

Close This Window

By closing this window you acknowledge that your experience on this website may be degraded.

TCAS Upgrade
TCAS Upgrade

CAS 67A/B TCAS 7.1 Upgrade

A moving line of defense against midair collisions along with increased situational awareness on the flight deck


What is TCAS II

TCAS II is a system used for detecting and tracking aircraft in the vicinity of your own aircraft. First, it serves as a moving line of defense against midair collisions. And second, it dramatically increases situational awareness on the flight deck.

By interrogating transponders, TCAS II analyzes the replies to determine range, bearing and if reporting altitude, the relative altitude of the intruder. Should the TCAS II processor determine that a possible collision hazard exists, it issues visual and audio advisories to the crew for appropriate vertical avoidance maneuvers.

There are two types of cockpit displays for TCAS II, the resolution advisory (RA) display and the traffic advisory (TA) display. the RA display is incorporated into the vertical speed indicator (VSI). By illuminating red and green arcs around the dial it displays the required rate, or limitation of climb or descent, to avoid a possible collision. The TA display shows the intruding aircraft’s relative position and altitude with a trend arrow to indicate if it is climbing or descending at greater than 500 feet per minute. This TA display may be provided on the weather radar indicator, on a dedicated TCAS II display or a TA/VSI display.

The TCAS II 7.1 Upgrade

TCAS II/ ACAS II Change 7.1 is now a requirement for all aircraft operating in European Airspace that require TCAS II or operate with TCAS II equipment.

BendixKing’ s CAS 67A TCAS II / ACAS II and CAS 67B TCAS II / ACAS II with Change 7.1 for corporate and regional aviation were the first traffic and collision avoidance system of their type to receive FAA Technical Standard Order (TSO) approval. In addition to meeting international ACAS II standards for collision avoidance, the CAS 67A/B TCAS II offers two levels of protection in today’s increasingly complex flight environment.

The CAS 67B TCAS II Change 7.1 system upgrade offers an update from Change 6.0 or 7.0 with a complete set of Change 7.1 collision avoidance options.

The CAS 67B TCAS/ACAS II system with the MST 67A ELS/EHS transponder is compatible with many legacy controllers and displays and is eligible for the Honeywell Authorized Protection Plan (HAPP).

There is also an upgrade available for the MST 67A Mode S ELS/EHS transponder (part of the CAS 67A TCAS II system) to be compliant with the global mandates for ADS-B Out.

Please visit MST 70B page for more details about the BendixKing MST 70B ADS-B Out upgrade.


Standard Features

  • TCAS II/ACASII 7.1 compatibility

Available Options

  • N/A


  • STCs have been completed by BendixKing’s dealer network to cover nearly all of the CAS 67A installations. Contact directly for details.
  • Includes Beechcraft, Boeing, Bombardier, Textron, Gulfstream, IAI, Lockheed, Sabreliner and Learjet


Available Downloads  (1)
Available Downloads  (1)
CAS 67A/67B Pilot's Guide
Download File Multiple Download been Selected

*Prices listed are manufacturer’s suggested retail prices (MSRP).  Actual price is determined by BendixKing’s authorized dealers and may vary depending on, among other things, country, region, installation costs and any additional parts that may be required.  For more complete pricing information, please contact an authorized BendixKing dealer.