Installation of extended engine mount, revised cowling and induction system, Hamilton Standard 22D40 or 12D40 constant speed propeller, and modified elevator trim tab system in accordance with Serv-Aero Engineering, Inc. FAA sealed Master Drawing List MDL5379, dated May 3, 1979, or later FAA approved revision. Pratt and Whitney R1340-AN-1 engine previously installed per Type Certificate A4SW is required with this installation. (Restricted Category) View PDF on drs.faa.gov ↗

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