Installation of Avidyne Corporation Model DFC90 Autopilot, p/n 700-00170-000 or Model DFC100 Autopilot, p/n 700-00170-001, as a replacement for the S-TEC System 55X Autopilot, p/n 1192-( )-( ), in accordance with the Avidyne Corporation Master Document List, Document AVDFC-019, Rev 06, dated February 23, 2011, or later FAA-approved revisions. View PDF on drs.faa.gov ↗

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