FAA · Supplemental Type Certificate
STC SA1295SO
Installation of an adjustable nine-inch trim tab on left aileron.
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 (12)
- 3A17 The Cessna Aircraft Company · R172F (USAF T-41D)
- 3A17 The Cessna Aircraft Company · R172G Series
- 3A17 The Cessna Aircraft Company · R172E Series
- 3A17 The Cessna Aircraft Company · 175C
- 3A17 The Cessna Aircraft Company · R172H (USAF T-41D)
- 3A17 The Cessna Aircraft Company · 175B
- 3A17 The Cessna Aircraft Company · 175A
- 3A17 The Cessna Aircraft Company · R172K
- 3A17 The Cessna Aircraft Company · P172D
- 3A17 The Cessna Aircraft Company · 172RG
- 3A17 The Cessna Aircraft Company · R172J
- 3A17 The Cessna Aircraft Company · 175
Certification basis — 14 CFR
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 ↗