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Atlas / STC / SA00491WI

FAA · Supplemental Type Certificate

STC SA00491WI

Installation of Test Instrumentation, Inc., (TII) Trim-in-Motion Alert System on Mitsubishi MU-2B airplanes

Current Reissued Aircraft Large Airplane Rev 04/19/2022 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 (17)

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