FAA · Supplemental Type Certificate
STC SA220SO
Tow bar, release mechanism, and safety tow link.
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 (235)
- A-759 American Champion Aircraft Corp. · 7AC
- A-759 American Champion Aircraft Corp. · 7ACA
- A-759 American Champion Aircraft Corp. · 7BCM (Army L-16A)
- A-759 American Champion Aircraft Corp. · 7CCM (Army L-16B)
- A-759 American Champion Aircraft Corp. · 7DC
- A-759 American Champion Aircraft Corp. · 7EC
- A-759 American Champion Aircraft Corp. · 7ECA
- A-759 American Champion Aircraft Corp. · 7FC
- A-759 American Champion Aircraft Corp. · 7GC
- A-759 American Champion Aircraft Corp. · 7GCA
- A-759 American Champion Aircraft Corp. · 7GCAA
- A-759 American Champion Aircraft Corp. · 7GCB
- A-759 American Champion Aircraft Corp. · 7GCBA
- A-759 American Champion Aircraft Corp. · 7GCBC
- A-759 American Champion Aircraft Corp. · 7HC
- A-759 American Champion Aircraft Corp. · 7JC
- A-759 American Champion Aircraft Corp. · 7KC
- A-759 American Champion Aircraft Corp. · 7KCAB
- A-759 American Champion Aircraft Corp. · S7AC
- A-759 American Champion Aircraft Corp. · S7CCM
- A-759 American Champion Aircraft Corp. · S7DC
- A-759 American Champion Aircraft Corp. · S7EC
- A-743 Boeing Airplane Company Wichita Division · 75 (Army PT-13)
- A-743 Boeing Airplane Company Wichita Division · A75 (Army PT-13A; -13B; -13C)
- A-743 Boeing Airplane Company Wichita Division · A75J1 (Army PT-18)
- A-743 Boeing Airplane Company Wichita Division · A75L3
- A-743 Boeing Airplane Company Wichita Division · A75L300
- A-743 Boeing Airplane Company Wichita Division · A75N1 (Army PT-17; -17A; Navy N2S-1; -4)
- A-743 Boeing Airplane Company Wichita Division · B75 (Navy N2S-5)
- A-743 Boeing Airplane Company Wichita Division · B75N1 (Navy N2S-3)
- A-743 Boeing Airplane Company Wichita Division · D75N1 (Army PT-27)
- A-743 Boeing Airplane Company Wichita Division · E75 (Army PT-13D; Navy N2S-5; PT-13D/N2S-5)
- A-743 Boeing Airplane Company Wichita Division · E75N1 (Army PT-13D; Navy N2S-5; PT-13D/N2S-5)
- A-743 Boeing Airplane Company Wichita Division · IB75A
- A-725 FS 2001 Corp. · AE-1
- A-725 FS 2001 Corp. · HE-1
- A-725 FS 2001 Corp. · J5A-80
- A-725 FS 2001 Corp. · J5A (Army L-4F)
- A-725 FS 2001 Corp. · J5B (Army L-4G)
- A-725 FS 2001 Corp. · J5C
- A-780 FS 2003 Corp. · PA-12
- A-780 FS 2003 Corp. · PA-12S
- 1A2 Piper Aircraft Inc. · PA-18
- 1A2 Piper Aircraft Inc. · PA-18-105 (Special)
- 1A2 Piper Aircraft Inc. · PA-18-125 (Army L-21A)
- 1A2 Piper Aircraft Inc. · PA-18-135
- 1A2 Piper Aircraft Inc. · PA-18-150
- 1A2 Piper Aircraft Inc. · PA-18A
- 1A2 Piper Aircraft Inc. · PA-18A-135
- 1A2 Piper Aircraft Inc. · PA-18A-150
+ 185 more aircraft
Certification basis — 14 CFR
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗