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Atlas / STC / ST11286DS

FAA · Supplemental Type Certificate

STC ST11286DS

To update the Communication Management Unit (CMU) and to add or update the 3rd VHF Datalink to support Controller Pilot Data Link Communication (CPDLC)

Current Issued Aircraft Large Airplane Rev 02/10/2023 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 (2)

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 ↗