Skip to content

Atlas / STC / SH2989SO

FAA · Supplemental Type Certificate

STC SH2989SO

Installation of a shock isolation mount kit for the FLIR imager.

Current Reissued Aircraft Rotorcraft Rev 11/26/2012 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 ↗