FAA · Supplemental Type Certificate
STC SA02214AK
Installation of Alpha Omega Suspension System in place of original bungees or bungees and hydasorbs.
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 (25)
- 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-797 FS 2002 Corp. · PA-14
- 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-18-135
- 1A2 Piper Aircraft Inc. · PA-18-150
- 1A2 Piper Aircraft Inc. · PA-18A
- 1A2 Piper Aircraft Inc. · PA-18A-150
- 1A2 Piper Aircraft Inc. · PA-18AS-135
- 1A2 Piper Aircraft Inc. · PA-18S
- 1A2 Piper Aircraft Inc. · PA-18S-150
- A-691 Piper Aircraft Inc. · J3C-40
- A-691 Piper Aircraft Inc. · J3C-50
- A-691 Piper Aircraft Inc. · J3C-50S
- A-691 Piper Aircraft Inc. · J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2))
- A-691 Piper Aircraft Inc. · J3C-65S
- A-691 Piper Aircraft Inc. · PA-11
- A-691 Piper Aircraft Inc. · PA-11S
- AR-7 Piper Aircraft Inc. · PA-18A-150 (Restricted)
- AR-7 Piper Aircraft Inc. · PA-18A (Restricted)
- 595 Piper Aircraft Inc. ATC · J-2
- 660 Piper Aircraft Inc. ATC · J-3
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 ↗