FAA · Supplemental Type Certificate
STC SA4-45
Engine mount for Continental W670 engine.
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 (10)
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-40 (Army UC-61G)
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-40S
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-41 (Army UC-61)
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-41A (Army UC-61A)
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-41AS
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-41S
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-46
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-46S
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-9 (Army UC-61F)
- A-707 Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. · 24W-9S
Certification basis — 14 CFR
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗