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Atlas / STC / SA3326NM

FAA · Supplemental Type Certificate

STC SA3326NM

Install Sensenich Propeller model76EM8S10-0 (60-inch to 63-inch pitch, inclusive) and Gulfstream Aerospace spinner assembly, Kit P/N SK143-2.

Current Reissued Aircraft Small Airplane Rev 08/20/2019 View PDF on drs.faa.gov ↗

What is an STC?

A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.

Certification basis — 14 CFR

Specific sections

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗