FAA · Supplemental Type Certificate
STC SR03408CH
Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103
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 (46)
- R00007DE Arrow Falcon Exporters Inc. · UH-1H
- H11SW AST Inc. · UH-1F
- H1SW Bell Helicopter Textron Inc. · 204B
- H1SW Bell Helicopter Textron Inc. · 205A-1
- H1SW Bell Helicopter Textron Inc. · 205A
- H1SW Bell Helicopter Textron Inc. · 205B
- H4SW Bell Helicopter Textron Inc. · 212
- H4NM Bell Helicopter Textron Inc. · TH-1L
- H4NM Bell Helicopter Textron Inc. · UH-1E
- H4NM Bell Helicopter Textron Inc. · UH-1L
- H2NM California Department of Forestry · UH-1F
- H15NM Hagglund Helicopters LLC · UH-1H
- H5SO International Helicopters Inc. · UH-1B
- R00005SE Northwest Rotorcraft LLC · UH-1H
- H7SO OAS Parts LLC · TH-1L
- H7SO OAS Parts LLC · UH-1B
- H7SO OAS Parts LLC · UH-1E
- H7SO OAS Parts LLC · UH-1H
- H7SO OAS Parts LLC · UH-1L
- H3SO Richards Heavylift Helo Inc. · UH-1A
- H3SO Richards Heavylift Helo Inc. · UH-1B
- H3SO Richards Heavylift Helo Inc. · UH-1H
- R00008AT Robinson Air Crane Inc. · TH-1F
- R00008AT Robinson Air Crane Inc. · UH-1F
- R00008AT Robinson Air Crane Inc. · UH-1P
- H10NM Rotorcraft Development Corporation · 209/AH-1G
- H5NM Rotorcraft Development Corporation · HH-1K
- H12NM Rotorcraft Development Corporation · TH-1F
- H5NM Rotorcraft Development Corporation · TH-1L
- H13WE Rotorcraft Development Corporation · UH-1B
- H3NM Rotorcraft Development Corporation · UH-1B
- H5NM Rotorcraft Development Corporation · UH-1E
- H12NM Rotorcraft Development Corporation · UH-1F
- H13WE Rotorcraft Development Corporation · UH-1H
- H5NM Rotorcraft Development Corporation · UH-1L
- H12NM Rotorcraft Development Corporation · UH-1P
- H1RM San Joaquin Helicopters · UH-1B
- H8NM Smith Helicopters · UH-1E
- R00012AT Southern Helicopter Inc. · UH-1B
- H6SO Southwest Florida Aviation International · SW205A-1
- H6SO Southwest Florida Aviation International · UH-1B
- H6SO Southwest Florida Aviation International · UH-1H
- H7NE Tamarack Helicopters Inc. · TH-1F
- H7NE Tamarack Helicopters Inc. · UH-1F
- R00009AT US Helicopter Inc. · AH-1S
- H9NM West Coast Fabrications · UH-1E
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗