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Atlas / STC / SA00261SE

FAA · Supplemental Type Certificate

STC SA00261SE

Installation of Lycoming O-320-E2D engines modified by STC SE00252SE, O-320-D2G or O-320-D2J engine and McCauley 1C160/CTM 7557 or 1C160/DTM 7557 or 1A175/ETM (seaplane only) propeller. (Landplanes and Seaplanes)

Current Amended Aircraft Single-Engine Rev 12/03/1998 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
  • § 21.47

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