FAA · Supplemental Type Certificate
STC SA8359SW-D
Installation of S-TEC Manual electric trim system, Model ST-501.
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 (9)
- A29EU Britten Norman (Bembridge) Limited · BN-2A MK.III
- A17EU Pilatus Britten-Norman Limited · BN-2A-26
- A17EU Pilatus Britten-Norman Limited · BN-2T
- A17EU Pilatus Britten-Norman Limited · BN-2B-20
- A17EU Pilatus Britten-Norman Limited · BN-2A-2
- A17EU Pilatus Britten-Norman Limited · BN-2A-6
- A17EU Pilatus Britten-Norman Limited · BN-2A-8
- A17EU Pilatus Britten-Norman Limited · BN-2A-20
- A17EU Pilatus Britten-Norman Limited · BN-2B-26
Certification basis — 14 CFR
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
- § 21.17
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗