Installation of passenger/cargo compartment in accordance with Serv-Aero Engineering, Inc. FAA sealed Master Drawing List MDL 10379 "A", dated November 16, 1979, or later FAA approved revision. Pezetel PZL-3S engine is required with this installation. FAA Approved Serv-Aero Airplane Flight Manual No. 101079 dated November 26, 1979 is required with this installation. (S2R S/N 2526R and up modified by STC SA3897WE) (S2R-R3S S/N R3S-001 AND UP) View PDF on drs.faa.gov ↗

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