FAA · Supplemental Type Certificate
STC SA750SW
Installation of tiptank fairings and drain cover.
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 (7)
- A-782 Sierra Hotel Aero Inc. · Navion A (Army L-17B and L-17C)
- A-782 Sierra Hotel Aero Inc. · Navion B
- A-782 Sierra Hotel Aero Inc. · Navion D
- A-782 Sierra Hotel Aero Inc. · Navion E
- A-782 Sierra Hotel Aero Inc. · Navion F
- A-782 Sierra Hotel Aero Inc. · Navion G
- A-782 Sierra Hotel Aero Inc. · Navion H
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗