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Atlas / STC / SA04428CH

FAA · Supplemental Type Certificate

STC SA04428CH

Installation of electric air conditioning system in accordance with Master Drawing List (MDL) as listed on AML No. SA04428CH, or later FAA approved revision.

Current Issued Aircraft Rev 09/23/2019 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 (5)

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 ↗