User's Manual

08RE398 TDFM-136B Installation Instructions
ST C APPROVA LS
Presently no TSO standard exists for airborne FM transceivers. To make it easier for installation
agencies to provide their customers with an approved installation supported by an effective
Airworthiness Approval, Technisonic has secured Supplemental Type Certificate (STC) approvals
(both US and Canadian) on it’s airborne FM products for many helicopters currently being
delivered in the US and Canada, as well as a number of single engine fixed wing aircraft. The DO-
160C test data, referenced below, are also on file and available from Technisonic to support
approval requirements in airframes for which Technisonic does not possess an STC.
Approved aircraft types are listed in the attachments to the formal STC documents. These STC’s
are the exclusive property of Technisonic Industries Ltd., and require the written authority of
Technisonic for their use. To assist Factory Authorized Technisonic Dealers in the certification
process, we have placed copies of our Canadian and US STC’s on our web site along with a letter
of authorization for their use. These documents may be downloaded and used as support for the
technical submission to FAA or Transport Canada. Only factory authorized dealers/installers are
permitted to download and make use of these documents on behalf of their customers (end users)
in support of regulatory agency approval. please refer to the Technisonic web site www.til.ca for
the latest issue of available STC’s and letter of authorization for use.
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