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Atlas / STC / ST03478AT

FAA · Supplemental Type Certificate

STC ST03478AT

Installation of 965-0976-003-226-226 Software with Runway Awareness Advisory System (RAAS) activation option on Honeywell MK V Enhanced Ground Proximity Warning System (EGPWS)

Historical Issued Aircraft Large Multi-Engine Rev 08/28/2007 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 (35)

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 ↗