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Atlas / STC / SA4112WE

FAA · Supplemental Type Certificate

STC SA4112WE

Installation of second pilot s seat and dual controls or passenger/cargo compartment in accordance with Serv-Aero Engineering, Inc. FAA sealed Master Drawing List MDL 012880 "A", dated April 21, 1980, or later FAA approved revision. P&W R-1340-AN-1 engine is required with this installation. FAA Approved Serv-Aero Airplane Flight Manual Nermission. Supplemental Type Certificate Addendum No. SA4112WE is a part of this STC. (S2R s/n 2526R and up modified by STC SA3961WE)

Current Reissued Aircraft Single-Engine Rev 07/30/2003 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 (1)

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 ↗