Skip to content

Atlas / STC / SR04842NY

FAA · Supplemental Type Certificate

STC SR04842NY

Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS)

Current Amended Aircraft Rotorcraft Rev 03/11/2025 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 ↗