066-01143-2101

BendixKing MST 67A transponder 066-01143-2101

066-01143-2101 is the exact BendixKing Part Number for this MST 67A remote Mode S transponder. The unit receives interrogations from compatible ground and airborne surveillance equipment, processes the approved aircraft identification and altitude data, and transmits the corresponding reply through the installed transponder antenna system. It is a remote avionics unit, not a self-contained cockpit display.

The complete -2101 suffix is important when comparing an equipment list, repair order or replacement quotation. Other MST 67A units may share the same family name while differing in installation configuration, modification status or diversity arrangement. Selection should therefore be based on Part Number 066-01143-2101 and the approved aircraft documentation rather than on the MST 67A model legend alone.

Mode S surveillance and crew functions

The official BendixKing MST 67A pilot guide describes a Mode S transponder supporting 4,096 reply codes, aircraft identification, pressure-altitude reporting and ground-speed information within an approved installation. It also describes Flight ID entry, Mode S elementary and enhanced surveillance functions, and data-link capability. Availability of each function depends on the connected controller, aircraft wiring and approved operating configuration.

The same documentation places the MST 67A in compatible TCAS II installations, where it responds to ground radar, airborne surveillance and traffic-alert interrogations. A typical signal path is controller or compatible flight-management and air-data input → MST 67A processing → top and/or bottom antenna → ATC or airborne interrogator. The transponder does not create pressure altitude without the approved altitude source.

Exact plate and installation identification

The authentic product view identifies the unit as an MST 67A transponder and shows Part Number 066-01143-2101 on the manufacturer plate. TSO C112, RTCA/DO-160B and software reference DO-178A Level 2 are also visible. These markings belong to the photographed -2101 unit and are not transferred from another transponder suffix or from a later ADS-B model.

The original housing includes the long remote-mount chassis, heat-sink area, mounting points, rear electrical interface and RF connection hardware. The gallery photograph is retained as the identification reference because it preserves the genuine plate and construction. Exact dimensions, weight, connector pin assignment, input current and transmitter output should be confirmed from approved component data for this suffix; reliable exact figures were not located in the sources used for this card.

System integration and replacement checks

BendixKing documentation allows diversity and non-diversity MST 67A installations, subject to the installed configuration. The transponder may work with compatible control heads and TCAS equipment, including documented CAS 67A system arrangements. Related controllers, antennas, altitude encoders, air-data sources and TCAS processors are connected equipment, but none is included with this product unless expressly stated in the commercial offer.

Before installation, confirm the complete Part Number, approved controller, diversity requirement, antenna arrangement, mounting tray, connector keying, aircraft wiring, circuit protection, software or modification status and applicable flight-manual supplement. A unit that answers on a bench can still produce an aircraft fault when the antenna, coaxial cable, altitude source, controller or bonding is defective, so troubleshooting should cover the complete surveillance chain.

The MST 67A is not automatically interchangeable with an MST 70B or another Mode S transponder. BendixKing presents the MST 70B as an ADS-B Out upgrade path for certain legacy installations, but an upgrade requires approved configuration, installation data and compliance work. Similar dimensions or connectors must not be treated as approval for a direct substitution.

Overhauled supply and ordering information

This 066-01143-2101 MST 67A is offered in Overhauled condition from partner stock with a six-month warranty. The listed price follows the agreed comparison rule for the exact condition. The serial number, overhaul release, modification status, bench-test results and current certification package for the unit allocated to an order will be confirmed in the quotation and dispatch documents.

For an inquiry, specify Part Number 066-01143-2101, model MST 67A, aircraft type, installed controller or TCAS configuration, diversity requirement, quantity and required release documentation. Controllers, antennas, mounting tray, mating connectors and wiring are supplied only when explicitly included. Other related units can be reviewed in the Garmin / BendixKing / Honeywell / Collins category; related products are not automatically interchangeable.

Product Type: Remote Mode S transponder

Manufacturer: BendixKing / Honeywell

Model: MST 67A

Designation: 066-01143-2101

Alternative Designations: MST67A; MST-67A; 066011432101; Bendix/King MST 67A -2101

Main Function: Receives compatible ATC and airborne interrogations and transmits approved Mode S replies

Documented Functions: 4,096 reply codes, aircraft identification, altitude reporting, Flight ID, elementary and enhanced surveillance where configured

Associated System: Compatible ATC surveillance and TCAS II installations, including documented CAS 67A configurations

Typical Signal Chain: Controller / approved aircraft data source → MST 67A → diversity or non-diversity antenna arrangement → ground or airborne interrogator

Qualification Markings: TSO C112 and RTCA/DO-160B according to the exact plate

Software Reference: DO-178A Level 2 according to the exact plate

Installation Configuration: Diversity or non-diversity as approved for the aircraft

Power Supply: Verify from approved component and installation data for 066-01143-2101

Exact Dimensions and Weight: Refer to the approved MST 67A installation drawing

Connector and Pin Assignment: Verify through the applicable MST 67A wiring and installation data

Interchangeability: Complete suffix, controller, diversity arrangement, software, wiring and aircraft approval must be verified

Condition: Overhauled

Warranty: 6 Months

Delivery Set: Controller, antennas, mounting tray, mating connectors and wiring only when expressly included

Technical Documentation: Applicable BendixKing MST 67A pilot, installation and maintenance data

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.