FAA · Supplemental Type Certificate
STC SE0417CH
Turbo-normalization
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 (11)
- E8CE Continental Motors Inc · TSIO-520-C
- E8CE Continental Motors Inc · TSIO-520-G
- E8CE Continental Motors Inc · TSIO-520-H
- E8CE Continental Motors Inc · TSIO-520-M
- E8CE Continental Motors Inc · TSIO-520-R
- E5CE Continental Motors · IO-520-A
- E5CE Continental Motors · IO-520-F
- E5CE Continental Motors · IO-520-J
- E5CE Continental Motors · IO-520-L
- E3SO Continental Motors · IO-550-F
- E3SO Continental Motors · IO-550-L
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 ↗