FAA · Supplemental Type Certificate
STC SA124EA
Shur-Vent fuel tank filler cap.
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 (8)
- A-759 American Champion Aircraft Corp. · 7GCB
- 3A12 The Cessna Aircraft Company · 172 Series
- 3A19 The Cessna Aircraft Company · 150
- A-768 The Cessna Aircraft Company · 140
- A-738 Consolidated Vultee Aircraft Corporation Stinson Division · 10A (Army L-9B)
- A-694 The Don Luscombe Aviation History Foundation Inc. · 8E
- 1A6 The New Piper Aircraft Inc. · PA-22 Series
- A-767 Univair Aircraft Corporation · 108 Series
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 ↗