FAA · Supplemental Type Certificate
STC SA4184WE
Installation of inflatable door seal.
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 (15)
- 3A16 Textron Aviation Inc. · 56TC
- 3A16 Textron Aviation Inc. · 58
- 3A16 Textron Aviation Inc. · 58A
- 3A16 Textron Aviation Inc. · 95
- 3A16 Textron Aviation Inc. · 95-55
- 3A16 Textron Aviation Inc. · 95-A55
- 3A16 Textron Aviation Inc. · 95-B55
- 3A16 Textron Aviation Inc. · 95-B55A
- 3A16 Textron Aviation Inc. · 95-B55B
- 3A16 Textron Aviation Inc. · 95-C55
- 3A16 Textron Aviation Inc. · B95
- 3A16 Textron Aviation Inc. · B95A
- 3A16 Textron Aviation Inc. · D55
- 3A16 Textron Aviation Inc. · E55
- 3A16 Textron Aviation Inc. · E95
Certification basis — 14 CFR
Specific sections
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗