066-01143-0501

MST 67A Mode S transponder 066-01143-0501

066-01143-0501 is the complete Part Number for a Honeywell BendixKing MST 67A remote Mode S transponder. It is designed to receive secondary-surveillance radar interrogations and return the aircraft identity, encoded altitude and other supported surveillance data. The equipment also supports conventional ATCRBS Mode A and Mode C functions within an approved installation.

Unlike a panel-mounted transponder, the MST 67A is installed remotely and works through compatible cockpit controls, antennas, air-data sources and aircraft wiring. The unit must therefore be treated as one element of a complete surveillance system. A similar housing or the same MST 67A family name does not establish interchangeability between different 066-01143 suffixes.

Surveillance and communication functions

The transponder replies on 1090 MHz to interrogations received on 1030 MHz. In Mode S operation, a unique 24-bit aircraft address allows ground or airborne interrogators to identify a particular aircraft while reducing unnecessary replies from other aircraft. The system installation manual also describes standard 56-bit and extended 112-bit Mode S messages, together with periodic squitter transmission.

Depending on the approved aircraft configuration, the connected installation can provide pressure-altitude information from ARINC 575, ARINC 706 or Gillham Mode C sources. Control and maintenance data are exchanged through the interfaces defined by Honeywell documentation. These capabilities depend on the exact transponder configuration, installed control unit, air-data source, antenna arrangement and aircraft approval.

Installation of the 066-01143-0501 transponder

Honeywell data for the MST 67A family specifies a remote 4 MCU unit using 13.75–28 V DC aircraft power, with a maximum listed consumption of 45 W. The manual states that forced-air cooling is not required, but the mounting location must still meet the environmental, clearance and ventilation requirements of the approved installation. The equipment uses an ARINC 404A connector and the specified mounting rack and interconnecting harness.

Before installation, technicians should verify the complete Part Number, modification status, software level, connector keying, rack, antenna configuration and Mode S address strapping. Installation also requires correct RF coaxial routing, bonding, circuit protection and approved configuration of the air-data and control inputs. Return to service must follow the applicable aircraft and equipment maintenance data.

Connected controls, antennas and system equipment

The Honeywell system manual lists the KFS 578A control unit, PS-578A control panel, CD 671C control unit, PS-550 control panel, CTA-81A control unit and CTA-81D control unit as equipment used in MST 67A installations, depending on system configuration. The KA 60 omnidirectional antenna is also identified in the same documentation. Listing these units describes system relationships and does not mean that every item is included with this transponder.

TCAS-compatible installations require the correct antenna diversity arrangement and approved interfaces. The exact applicability of 066-01143-0501 to a particular aircraft has not been confirmed by a type-specific installation record in the available sources, so aircraft compatibility should be established from the equipment list, wiring diagrams, modification records and approved avionics data for the individual airframe.

Identification, availability and ordering

The exact suffix is essential when ordering. Honeywell's May 2004 system installation manual identifies 066-01143-0501 as a TSO-certified MST 67A version but notes that this version was not then currently available. The current supplier listing also shows zero stock and offers quotation requests rather than an immediate purchase price. For that reason, this Aviamisto card is marked Out of Stock and no unconfirmed price is displayed.

The source lists Serviceable, Overhauled Outright and Overhauled Exchange supply routes subject to quotation. This card uses Serviceable as the selected catalog condition; the actual available condition, serial number, modification record, test status and documentation must be reconfirmed before order acceptance. Send the exact Part Number, required condition, quantity and aircraft configuration with your inquiry. Related equipment can be reviewed in the Garmin / BendixKing / Honeywell / Collins category; related products are not automatically interchangeable replacements.

Product Type: Remote Mode S transponder

Designation: 066-01143-0501

Alternative Designations: MST 67A, MST67A, Honeywell 066-01143-0501, BendixKing 066-01143-0501

Manufacturer: Honeywell / BendixKing

Model: MST 67A

Function: ATCRBS Mode A / Mode C and Mode S surveillance interrogation processing and reply transmission

Installation: Remote-mounted transponder in an approved aircraft surveillance installation

Form Factor: 4 MCU per ARINC 600 according to the Honeywell system installation manual

DC Power Supply: 13.75–28 V DC

Power Consumption: 45 W

Cooling: No forced-air cooling required

Connector: ARINC 404A; interface drawing 155-01626-0001

Transmitter Power: 400 W nominal

Transmit Frequency: 1090 ±1 MHz

Receiver Frequency: 1030 ±0.2 MHz

Maximum Reply Rates: ATCRBS 750 PRF; Mode S 50 PRF

Altitude Inputs: Dual ARINC 575 Air Data / ARINC 419; dual ARINC 706 Air Data / ARINC 429; dual Gillham Mode C Gray Code

Control Inputs: Dual ARINC 718 / ARINC 429

Maintenance Inputs: ARINC 604 / ARINC 429

TCAS Interface: ARINC 735 high-speed ARINC 429 where supported by the approved configuration

Associated Controls: KFS 578A 071-01507-(); PS-578A 071-01618-(); CD 671C 071-01542-(); PS-550 071-01619-(); CTA-81A 071-01503-(); CTA-81D 071-01561-()

Associated Antenna: KA 60 071-01174-() according to the Honeywell system manual

Aircraft Applicability: Confirm from the aircraft equipment list, wiring diagrams and approved installation data; exact type-specific applicability was not independently confirmed

Available Supply Conditions: Serviceable, Overhauled Outright or Overhauled Exchange subject to quotation

Condition: Serviceable catalog selection; actual offered unit condition must be reconfirmed

Warranty: 6 Months

Stock Status: Out of Stock

Price: Request a quotation

Technical Documentation: Honeywell MST 67A Mode S Transponder System Installation Manual 006-00681-0006 and applicable aircraft installation / maintenance data

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