FAA · Supplemental Type Certificate
STC SR02596SE
Installation of Olympic Aero Services, Inc. Additional Telemetry Unit (ATU)
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 (10)
- 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
- H4SW Bell Helicopter Textron Inc. · 412
- H4SW Bell Helicopter Textron Inc. · 412CF
- H4SW Bell Helicopter Textron Inc. · 412EP
- H4NM Bell Helicopter Textron Inc. · UH-1E
- H4NM Bell Helicopter Textron Inc. · UH-1L
- 1H15 Sikorsky Aircraft · S-61N
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗