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Atlas / STC / SE8674SW

FAA · Supplemental Type Certificate

STC SE8674SW

Modification of the following engine oil tanks by adding a sight glass: 6002T03P01, 6002T03P03, 6003T09P01, 6003T09P02, 6003T09P03, 6003T09P04, 6003T89P01, 6003T89P02, 6003T03P02, 6002T03P04.

Current Issued Engine Rev 08/20/1993 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 ↗