FAA · Supplemental Type Certificate
STC SA4328WE
Installation of a hydraulic landing gear retraction system.
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 (17)
- 3A20 Beechcraft Corporation · 65-80
- 3A20 Beechcraft Corporation · 65-88
- 3A20 Beechcraft Corporation · 65-90
- 3A20 Beechcraft Corporation · 65-A80-8800
- 3A20 Beechcraft Corporation · 65-A80
- 3A20 Beechcraft Corporation · 65-A90-1
- 3A20 Beechcraft Corporation · 65-A90-2
- 3A20 Beechcraft Corporation · 65-A90-3
- 3A20 Beechcraft Corporation · 65-A90-4
- 3A20 Beechcraft Corporation · 65-B80
- 3A20 Beechcraft Corporation · 65
- 3A20 Beechcraft Corporation · A65-8200
- 3A20 Beechcraft Corporation · A65
- 3A20 Beechcraft Corporation · B90
- 3A20 Beechcraft Corporation · C90
- 3A20 Beechcraft Corporation · E90
- 3A20 Beechcraft Corporation · H90
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
- § 21.47
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗