FAA · Supplemental Type Certificate
STC SA12202IB
Installation of Garmin GWX Weather Radar System
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 (23)
- 2A4 Twin Commander Aircraft LLC · 690
- 2A4 Twin Commander Aircraft LLC · 690A
- 2A4 Twin Commander Aircraft LLC · 690B
- 3A20 Textron Aviation Inc. · C90
- A14CE Textron Aviation Inc. · 100
- A14CE Textron Aviation Inc. · A100
- A14CE Textron Aviation Inc. · B100
- A24CE Textron Aviation Inc. · 200
- A24CE Textron Aviation Inc. · 200C
- A24CE Textron Aviation Inc. · B200
- A24CE Textron Aviation Inc. · B200C
- A24CE Textron Aviation Inc. · B200C (C-12F)
- A24CE Textron Aviation Inc. · B200C (C-12R)
- A24CE Textron Aviation Inc. · B200C (UC-12F)
- A24CE Textron Aviation Inc. · B200C (UC-12M)
- A24CE Textron Aviation Inc. · 300
- A24CE Textron Aviation Inc. · B300
- A24CE Textron Aviation Inc. · B300C
- A24CE Textron Aviation Inc. · B300C (MC-12W)
- A24CE Textron Aviation Inc. · B300C (UC-12W)
- A24CE Textron Aviation Inc. · 1900C
- A24CE Textron Aviation Inc. · 1900D
- A24CE Textron Aviation Inc. · 1900C (C-12J)
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 ↗