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Atlas / STC / SA1553NM

FAA · Supplemental Type Certificate

STC SA1553NM

Installation of one or two 90 US gallons fuselage auxiliary fuel tank(s), in accordance with Branson List of Drawings and Documents, No. 61A000, Revision B, FAA approved May 16, 1983, or later FAA approved revision.

Current Reissued Aircraft Small Multi-Engine Rev 06/03/2010 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 (3)

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 ↗