Mods Catalog

Welcome to the Heli-One online modifications catalogue.

You can browse Heli-One's modifications by aircraft type, mission purpose or ATA code. Use the search function to look up modifications as well.

Within each modification listing, you can learn more about each modification's purpose, certifications, weight, and installation time. You can also email the modification to others by clicking on the EMAIL link at the bottom of each listing. You contact the Heli-One team for further information on pricing and installation by clicking the CONTACT US button at the bottom of the listing. You can also contact Heli-One directly: 1-877-243-4573 ext. 109

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    • AS332
    • SAR
    • Military
    • LAW
    • Utility
    • EMS
    • Offshore
    Mode S Transponder - Honeywell
    Honeywell MST-67AProject No. CHA332-34-011
    The Honeywell MST-67A Mode S Transponder is a replacement for a Mode C Transponder.

    Modification details

    Title Mode S Transponder
    Aircraft AS332 (L1)
    Approvals FAA Field Approval
    Purpose Airspace Requirements
    Weight of Kit 5.63kg
    Installation Time Low

    Description of modification

    A Mode S Transponder is necessary in many airspaces and wherever ADS-B regulations are in force. All over the world operators are discovering that their older Mode C Transponders need to be replaced with Mode S due to an aircraft movement or new regulations. Heli-One offers the MST-67A Mode S Transponder as a retrofit in the AS332. In addition to the MST-67A this modification installs the PS-578A control head, a new DMNI antenna and a Sandia SAC 7-35 Airdata computer. Interfacing to existing aircraft systems is included (pitot-statics, DME coupler etc).
    • ATA: 34 Navigation
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