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Atlas / STC / SA04477AT

FAA · Supplemental Type Certificate

STC SA04477AT

Installation of Continental Aerospace Technologies, Inc. IO-370-DA3A engine

Current Issued Aircraft Small Airplane Rev 07/21/2020 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

Specific sections

  • Sec. 23.1
  • Sec. 23.4
  • § 21.47
  • Sec. 23.33
  • § 21.120
  • Sec. 23.301
  • Sec. 23.423
  • Sec. 23.441
  • Sec. 23.507
  • Sec. 23.562
  • Sec. 23.603
  • Sec. 23.607
  • Sec. 23.779
  • Sec. 23.781
  • Sec. 23.807
  • Sec. 23.951
  • Sec. 23.961
  • Sec. 23.1301
  • Sec. 23.1353
  • Sec. 23.1524
  • Sec. 23.1549

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