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Thread: FAA SAIB on TCW IBBS

  1. #1
    Senior Member Andy's Avatar
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    Default FAA SAIB on TCW IBBS

    FAA has just released an SAIB on TCW IBBS as fitted to many CubCrafters aircraft:

    https://drs.faa.gov/browse/excelExte...dalOpened=true

  2. #2
    Senior Member Andy's Avatar
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    Default Re: FAA SAIB on TCW IBBS


  3. #3
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    Default Re: FAA SAIB on TCW IBBS

    TCW’s email reply:

    Mike, If the unit is installed as part of a Carbon Cub in the experimental
    category no further action is required. If the unit was installed as part
    of a certified aircraft as provided by the Carbon Cub factory, then the
    installation was not done under our STC SA04400NY and again no particular
    action is required. If the unit was installed in accordance with our STC
    SA04400NY the FAA is recommending the unit be further installed in a metal
    box that vents overboard. In any case the SAIB is not a requirement, it
    is a recommendation, this is not an AD. If desired, an owner may
    purchase our secondary enclosure to install the IBBS unit within, however
    the particular location and installation area may need to evaluated to see
    it the new enclosure will fit the aircraft installation. Lastly, over
    more than 10 years of sales into the experimental community and more than
    10,000 experimental units in the field, there has never been a failure that
    has every emitted anything from an IBBS unit. The FAA has created a test
    in response to the Boeing 787 dreamliner issue and has applied this to all
    lithium bases systems regardless of their size or actual ability to have a
    problem.


    Best regards,
    Bob Newman
    TCW Technologies

  4. #4
    Senior Member Andy's Avatar
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    Default Re: FAA SAIB on TCW IBBS

    Quote Originally Posted by sea2jet View Post
    The FAA has created a test
    in response to the Boeing 787 dreamliner issue and has applied this to all
    lithium bases systems regardless of their size or actual ability to have a
    problem.
    It would be interesting to know what test failure, if any, resulted in the issuance of SAIB 2024-01.

    AC 20-184 appears to define the IBBS as a Small/Medium Lithium battery with Means of Compliance specified in Appendix E.

    The 787 main battery would be classified as Large and Appendix F would seem to be applicable.

    What was the test referenced in the TCW response?

    Related discussion and the same TCW response here - https://vansairforce.net/threads/sai...attery.224497/

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