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Atlas / STC / ST02417SE

FAA · Supplemental Type Certificate

STC ST02417SE

Installation of the replacement stall warning vertical accelerometer, Butler National Part Number 02904001-101

Current Reissued Aircraft Large Airplane Rev 04/09/2025 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 ↗