FAA · Supplemental Type Certificate
STC SH3509SW
Installation of a Single and Dual Condenser Blower Air Conditioning 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 (9)
- H9EU Airbus Helicopters · AS350B
- H9EU Airbus Helicopters · AS350B1
- H9EU Airbus Helicopters · AS350B2
- H9EU Airbus Helicopters · AS350B3
- H9EU Airbus Helicopters · AS350BA
- H9EU Airbus Helicopters · AS350C
- H9EU Airbus Helicopters · AS350D
- H9EU Airbus Helicopters · AS350D1
- H9EU Airbus Helicopters · EC130B4
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 ↗