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Atlas / STC / SA57RM

FAA · Supplemental Type Certificate

STC SA57RM

Installation of Lycoming O-235-C1, -C1A, -C1B, -C1C, -C2A, -C2B, -C2C, -H2C, -K2A, -K2B, -L2A, or L2C series engines.

Current Reissued Aircraft Single-Engine Rev 07/08/2009 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 (6)

Certification basis — 14 CFR

Specific sections

  • Sec. 111
  • Sec. 113
  • Sec. 115
  • Sec. 117
  • Sec. 119
  • Sec. 120
  • § 21.47

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