Skip to content

Atlas / STC / SA316SO

FAA · Supplemental Type Certificate

STC SA316SO

Carburetor ice detector.

Current Reissued Aircraft Small Airplane Rev 04/03/2025 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.

Applicable aircraft (48)

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