Installation of a P&W (Canada) turbopropeller engine (Model PT-6A, -6B, -20, 20A, -20B, or -6/C20) and Hartzell propeller (Model HC-B3TN-3B hub and Model T10282(N)-4R blades). View PDF on drs.faa.gov ↗

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