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Atlas / STC / ST02601AT

FAA · Supplemental Type Certificate

STC ST02601AT

Modification from a 154-passenger interior to a 148-passenger interior or from a 156-passenger interior to a 150-passenger interior.

Historical Issued Aircraft Large Multi-Engine Rev 12/20/2002 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 ↗