FAA · Supplemental Type Certificate
STC SP04490AT
Installation of Sensenich propeller model 2G0M8/C82BGF
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 (16)
- 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-135
- 1A2 Piper Aircraft Inc. · PA-18A-150
- 1A2 Piper Aircraft Inc. · PA-18AS-125
- 1A2 Piper Aircraft Inc. · PA-18AS-135
- 1A2 Piper Aircraft Inc. · PA-18AS-150
- 1A2 Piper Aircraft Inc. · PA-18S
- 1A2 Piper Aircraft Inc. · PA-18S-105 (Special)
- 1A2 Piper Aircraft Inc. · PA-18S-125
- 1A2 Piper Aircraft Inc. · PA-18S-150
- 1A2 Piper Aircraft Inc. · PA-19 (Army L-18C)
- 1A2 Piper Aircraft Inc. · PA-19S
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 ↗