Skip to content

Atlas / STC / SA1225CE

FAA · Supplemental Type Certificate

STC SA1225CE

Installation of Lycoming O-320-E2D/ STC SE1226CE or O-320-D2G engine and McCauley 1C160/CTM 7557 or 1C160/DTM 7557 propeller

Current Reissued Aircraft Single-Engine Rev 01/25/1996 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 (4)

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 ↗