FAA · Supplemental Type Certificate
STC SR02204LA
Installation of an AKV, INC. N1/N2 Cycle Counter, PN UH1T53CC
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)
- H1SW Bell Helicopter Textron · 204B
- H1SW Bell Helicopter Textron · 205A
- H1SW Bell Helicopter Textron · 205A-1
- H1SW Bell Helicopter Textron · 205B
- H1SW Bell Helicopter Textron · 210
- H7SO Overseas Aircraft Support Inc · UH-1B
- H7SO Overseas Aircraft Support Inc · UH-1E
- H7SO Overseas Aircraft Support Inc · UH-1H
- H7SO Overseas Aircraft Support Inc · UH-1L
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 ↗