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
    • H225
    • Utility
    Vertical Reference Door
    Left or Right DoorProject No. CHA332-52-011
    A feature which enhances both safety and capability for pilots handling sling loads, when visibility beneath the aircraft is essential. Simple and reliable, and uses virtually the same hardware as the original door to be attached to the airframe.

    Modification details

    Title Vertical Reference Door
    Aircraft AS332, H225
    Approvals ​​TCCA STC, FAA STC, EASA STC, Brazil STC
    Purpose Aid pilot view for handling sling tools
    Weight of Kit ​7kg
    Installation Time ​Low

    Description of modification

    This simple and reliable vertical reference door provides a large protruding window to improve the downward vision of the pilot. The door consists of a steel peripheral frame which supports an acrylic “bubble” window. A horizontal member is attached to the lower part of the door to support an arm rest. Conveniently, the door is attached to the airframe with virtually the same hardware as the original crew door. The door does not affect the performance of the rotorcraft significantly. With a cruise pitch setting of 15.5 degrees, the range will decrease only by 6% with one bubble door and 10% with two bubble doors. This installation is available for either or both the left and the right hand side.
    • ATA: 52 Doors
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