FAA · Supplemental Type Certificate
STC ST02540AK
Fabrication and installation of Aero Twin, Inc., Rudder Gust Lock Kit No. 4111-212
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)
- A43EU Airbus Defense and Space S.A. · C-212-CB
- A43EU Airbus Defense and Space S.A. · C-212-CC
- A43EU Airbus Defense and Space S.A. · C-212-CD
- A43EU Airbus Defense and Space S.A. · C-212-CE
- A43EU Airbus Defense and Space S.A. · C-212-CF
- A43EU Airbus Defense and Space S.A. · C-212-DE
- A43EU Airbus Defense and Space S.A. · C-212-DF
Certification basis — 14 CFR
Specific sections
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗