PPRuNe Forums - View Single Post - do I need STC to install new radio / xponder ?

6th Dec 2009, 21:10

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wigglyamp

Join Date: Nov 2007

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STCs and minor changes

Some Part 21 DOA companies have a multi-aircraft approvals for transponders such as GTX328, 330 etc. Try lees Avionics at High Wycombe - they seem to do loads of minor mods and STCs from what IO-540 says..

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