066-01143-1602

Honeywell MST 67A Mode S transponder 066-01143-1602

066-01143-1602 identifies the photographed Honeywell BendixKing MST 67A remote Mode S transponder. The original identification plate shows the complete Part Number 066-01143-1602 and serial number 1850. This exact suffix is important because MST 67A versions can differ in antenna configuration, built-in test capability, datalink level, Flight ID support and environmental qualification even when their housings look almost identical.

The unit supports aircraft secondary-surveillance functions by receiving interrogations on 1030 MHz and transmitting replies on 1090 MHz. It processes ATCRBS Mode A and Mode C as well as Mode S interrogations and replies. In an approved installation, the transmitted information allows compatible surveillance systems to determine aircraft identity, encoded altitude and other supported data.

Surveillance functions of the 066-01143-1602

Mode S uses a unique 24-bit aircraft address so that an interrogation can be directed to a particular aircraft and the reply can be identified without ambiguity. Honeywell documentation describes standard 56-bit and extended 112-bit messages together with periodic squitter transmission. These functions help reduce unnecessary replies and support more capable air-to-ground and air-to-air surveillance communication than a basic Mode A/C transponder.

For the -1602 configuration, the Honeywell installation manual lists extended BITE, antenna diversity, TCAS II compatibility, Level 3 datalink and Flight ID reporting. It also identifies HIRF and lightning qualification for this version. Burst tuning and remote IDENT are not listed for -1602. These are configuration characteristics, not evidence that every function is enabled in every aircraft; the connected controls, air-data source, TCAS equipment, wiring and aircraft approval determine the installed capability.

Power, RF operation and installation

The MST 67A is a remotely installed 4 MCU unit using 13.75–28 V DC aircraft power with a listed consumption of 45 W. Honeywell specifies nominal transmitter power of 400 W, a transmit frequency of 1090 ±1 MHz and receiver frequency of 1030 ±0.2 MHz. Maximum reply rates are listed as 750 PRF for ATCRBS and 50 PRF for Mode S. Forced-air cooling is not required under the documented installation conditions.

The transponder uses an ARINC 404A connector and must be installed with the correct mounting rack, RF coaxial cables, antennas, bonding, circuit protection and approved harness. Altitude data can be supplied through compatible ARINC 575, ARINC 706 or Gillham Mode C sources. The full Part Number, modification status, software level, Mode S address strapping and connector arrangement should be compared with the aircraft equipment list and wiring diagrams before installation.

Controls, air-data sources and related equipment

Honeywell's system manual lists several possible cockpit controls for MST 67A installations: KFS 578A, PS-578A, CD 671C, PS-550, CTA-81A and CTA-81D. It also identifies the KA 60 omnidirectional antenna. A diversity configuration normally uses approved upper and lower antennas, while TCAS integration requires the applicable high-speed ARINC 429 interfaces and approved system architecture.

These components are functionally related equipment, not interchangeable alternatives to the transponder and not an assumed delivery set. The exact control head, antenna installation, air-data computer and TCAS connection depend on the aircraft configuration. No specific aircraft type is claimed for serial number 1850 because a type-specific equipment record or installation approval was not supplied with the photographed unit.

Identification, condition and ordering

The photographs show the complete unit from the front and from a three-quarter angle, including the cooling fins, housing, mounting hardware and manufacturer plate. The plate identifies Honeywell International Inc., the Bendix/King product family, model MST 67A, Part Number 066-01143-1602 and serial number 1850. These visible identifiers should be checked again against the offered unit and accompanying records before order acceptance.

This catalog position is offered in Serviceable condition, marked In Stock and supplied with a six-month warranty. Availability should still be reconfirmed before payment because a specific serial-numbered unit can be allocated. When requesting a quotation, provide Part Number 066-01143-1602, required quantity, destination and documentation requirements. Related avionics can be reviewed in the Garmin / BendixKing / Honeywell / Collins category. Related catalog positions are not automatically interchangeable replacements.

Product Type: Remote Mode S transponder

Designation: 066-01143-1602

Alternative Designations: MST 67A, MST67A, Honeywell 066-01143-1602, BendixKing 066-01143-1602

Manufacturer: Honeywell / BendixKing

Model: MST 67A

Serial Number: 1850 on the photographed unit

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

Configuration: HIRF and lightning qualified; extended BITE; antenna diversity; TCAS II compatible; Level 3 datalink; Flight ID reporting

Unsupported Configuration Features: Burst tuning and remote IDENT are not listed for the -1602 version in the Honeywell configuration table

TSO Compliance Reference: TSO C112 configuration 3A2 121 011 according to the Honeywell system installation manual

Installation: Remote-mounted 4 MCU transponder per ARINC 600

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

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

Condition: Serviceable

Warranty: 6 Months

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