FAA · Supplemental Type Certificate
STC SA963NW
Installation of a Lycoming O-360-A1A engine, Sensenich 76EM8-056 propeller, cross-over exhaust system, and modified carburetor inlet.
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 (4)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗