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Atlas / STC / ST03957AT

FAA · Supplemental Type Certificate

STC ST03957AT

Activation of Aircell Axxess Cabin Telecommunications Router (CTR) Wireless Local Area Network (WLAN) in accordance with Constant Aviation LLC, Master Drawing List DB1107001, Revision IR, dated December 9, 2011, or later FAA approved revision.

Current Reissued Aircraft Rev 05/24/2017 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

Specific sections

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