FAA · Supplemental Type Certificate
STC SA11300DS
Upgrade previously installed Collins Aerospace Radar Altimeter
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 (67)
- A16NM Gulfstream Aerospace LP · 1125 Westwind Astra
- A8SW Ontic Engineering and Manufacturing Inc. · SA226-TC
- A8SW Ontic Engineering and Manufacturing Inc. · SA227-AC (C-26A)
- A8SW Ontic Engineering and Manufacturing Inc. · SA227-BC (C-26A)
- A8SW Ontic Engineering and Manufacturing Inc. · SA227-PC
- A59EU Piaggio Aviation S.p.A. · P-180
- 2A4 Twin Commander Aircraft LLC · 680
- 2A4 Twin Commander Aircraft LLC · 680-E
- 2A4 Twin Commander Aircraft LLC · 680-F
- 2A4 Twin Commander Aircraft LLC · 680-F(P)
- 2A4 Twin Commander Aircraft LLC · 680-FL
- 2A4 Twin Commander Aircraft LLC · 680-FL(P)
- 2A4 Twin Commander Aircraft LLC · 680-T
- 2A4 Twin Commander Aircraft LLC · 680-V
- 2A4 Twin Commander Aircraft LLC · 680-W
- 2A4 Twin Commander Aircraft LLC · 681
- 2A4 Twin Commander Aircraft LLC · 685
- 2A4 Twin Commander Aircraft LLC · 690
- 2A4 Twin Commander Aircraft LLC · 690A
- 2A4 Twin Commander Aircraft LLC · 690B
- 2A4 Twin Commander Aircraft LLC · 690C
- 2A4 Twin Commander Aircraft LLC · 690D
- 2A4 Twin Commander Aircraft LLC · 695
- 2A4 Twin Commander Aircraft LLC · 695A
- 2A4 Twin Commander Aircraft LLC · 695B
- 2A4 Twin Commander Aircraft LLC · 720
- A1WI Textron Aviation Inc. · 525
- A1WI Textron Aviation Inc. · 525A
- A1WI Textron Aviation Inc. · 525B
- A1WI Textron Aviation Inc. · 525C
- A00010WI Textron Aviation Inc. · 390
- 3A20 Textron Aviation Inc. · C90
- 3A20 Textron Aviation Inc. · C90A
- 3A20 Textron Aviation Inc. · C90GT
- 3A20 Textron Aviation Inc. · C90GTi
- 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. · B200CT
- A24CE Textron Aviation Inc. · B200T
- A24CE Textron Aviation Inc. · 300
- A24CE Textron Aviation Inc. · 300LW
- 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
+ 17 more aircraft
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 ↗