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Atlas / STC / SA5493NM

FAA · Supplemental Type Certificate

STC SA5493NM

Installation of Coltech Selcal per FAA approved Coltech, Inc. document no. 0200017-000 Rev A dtd 11/15/91 or later FAA approved revision.

Current Reissued Aircraft Large Multi-Engine Rev 03/02/2001 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 (1)

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 ↗