Skip to content

Atlas / STC / SH5813NM

FAA · Supplemental Type Certificate

STC SH5813NM

Installation of WECO Aerospace Systems, Inc. generator cooling kit and increase the maximum continuous duty rating to 130 amps

Current Reissued Aircraft Rotorcraft Rev 03/16/2011 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

  • Sec. 111
  • Sec. 113
  • Sec. 115
  • Sec. 117
  • Sec. 119
  • Sec. 120

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