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Atlas / STC / SA33CE

FAA · Supplemental Type Certificate

STC SA33CE

If Champion Part Number 7-480 door is installed, remove two of AN 380-2-2 cotter pins and two of AN 393-3 flat head pins as necessarry to remove one door. If American Champion Part Number 7-1265 door is installed, remove quick release pins to remove one door. Weight change --10lb at +21.06 arm

Current Reissued Aircraft Small Airplane Rev 07/08/2025 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

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