FAA · Supplemental Type Certificate
STC SR03465CH
Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-ECD-084-280, or AA-ECD-084-480
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 (14)
- H1CE The Enstrom Helicopter Corporation · 280
- H1CE The Enstrom Helicopter Corporation · 280C
- H1CE The Enstrom Helicopter Corporation · 280F
- H1CE The Enstrom Helicopter Corporation · 280FX
- H1CE The Enstrom Helicopter Corporation · 480
- H1CE The Enstrom Helicopter Corporation · 480B
- H1CE The Enstrom Helicopter Corporation · F-28
- H1CE The Enstrom Helicopter Corporation · F-28A
- H1CE The Enstrom Helicopter Corporation · F-28C-2
- H1CE The Enstrom Helicopter Corporation · F-28C-2R
- H1CE The Enstrom Helicopter Corporation · F-28C
- H1CE The Enstrom Helicopter Corporation · F-28F-R
- H1CE The Enstrom Helicopter Corporation · F-28F
- H1CE The Enstrom Helicopter Corporation · TH-28
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
- § 21.47
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗