Installation of Heli-Preheat Kit, p/n TA3193-1 for 115 volt application in accordance with Heli-Preheat Kit drawing TA3193-1 Revision D, dated December 11, 2023 or later FAA approved revisions and Preheat Kit Installation Instruction TNH3193 Revision B, dated July 6, 2018 or later FAA approved revisions View PDF on drs.faa.gov ↗

The STC PDF is authoritative: installation instructions, ICA requirements and limitations.