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Atlas / STC / SA2628NM

FAA · Supplemental Type Certificate

STC SA2628NM

Optional takeoff gross weight increase for airplanes conforming to Branson Aircraft Corp. Conformity checklist 91891 and Branson Aircraft Corp. FAA sealed Drawing List 91890, Rev. NC, dated February 25, 1987, or later FAA approved revision. (501 S/N'S 00 01 and on

Historical Reissued Aircraft Small Multi-Engine Rev 05/03/1994 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 ↗