Thread: Cessna 400 Series Voltage Regulator Upgrade Kit
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Unread 04-21-25, 06:31 PM
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Agree that the -400 series regulator upgrade is “1 wire” simple. Checked today and Cessna 337 is on the R1224 approved model list, so you could also go that direction and install them without field approval or STC as a PMA regulator.
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