FAA · Supplemental Type Certificate
STC SE2587CE
Add unleaded and leaded automotive gasoline, 91 minimum antiknock index per ASTM specification D-439.
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 (22)
- E-274 Textron Lycoming AVCO Corporation · O-320-D2B
- E-274 Textron Lycoming AVCO Corporation · O-320-D2F
- E-274 Textron Lycoming AVCO Corporation · O-320-B1B
- E-274 Textron Lycoming AVCO Corporation · O-320-D2J
- E-274 Textron Lycoming AVCO Corporation · O-320-B2D
- E-274 Textron Lycoming AVCO Corporation · O-320-D1A
- E-274 Textron Lycoming AVCO Corporation · O-320-B3C
- E-274 Textron Lycoming AVCO Corporation · O-320-D1C
- E-274 Textron Lycoming AVCO Corporation · O-320-B3A
- E-274 Textron Lycoming AVCO Corporation · O-320-D1D
- E-274 Textron Lycoming AVCO Corporation · O-320-B2C
- E-274 Textron Lycoming AVCO Corporation · O-320-D2A
- E-274 Textron Lycoming AVCO Corporation · O-320-B2A
- E-274 Textron Lycoming AVCO Corporation · O-320-D2G
- E-274 Textron Lycoming AVCO Corporation · O-320-B1A
- E-274 Textron Lycoming AVCO Corporation · O-320-B3B
- E-274 Textron Lycoming AVCO Corporation · O-320-D1B
- E-274 Textron Lycoming AVCO Corporation · O-320-D1F
- E-274 Textron Lycoming AVCO Corporation · O-320-D3G
- E-274 Textron Lycoming AVCO Corporation · O-320-D2H
- E-274 Textron Lycoming AVCO Corporation · O-320-D2C
- E-274 Textron Lycoming AVCO Corporation · O-320-B2B
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 ↗