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Atlas / STC / ST01740CH

FAA · Supplemental Type Certificate

STC ST01740CH

Installation of a Honeywell Mark VIII Enhanced Ground Proximity Warning System with Honeywell EDZ-605 EFIS Terrain Display per Cessna Master Document List CF90072, Rev B, dtd 12/10/2002 or later FAA approved revision.

Historical Issued Aircraft Small Multi-Engine Rev 12/13/2002 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 ↗