FAA · Supplemental Type Certificate
STC SA4240WE
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 (14)
- 5A4 Raytheon Aircraft Company · D50A
- 5A4 Raytheon Aircraft Company · D50 (L-23E)
- 5A4 Raytheon Aircraft Company · B50 Series
- 5A4 Raytheon Aircraft Company · J50
- 5A4 Raytheon Aircraft Company · D50B
- 5A4 Raytheon Aircraft Company · 50 (L-23A)
- 5A4 Raytheon Aircraft Company · H50
- 5A4 Raytheon Aircraft Company · G50
- 5A4 Raytheon Aircraft Company · D50C
- 5A4 Raytheon Aircraft Company · D50E
- 5A4 Raytheon Aircraft Company · D50E-5990
- 5A4 Raytheon Aircraft Company · E50
- 5A4 Raytheon Aircraft Company · F50
- 5A4 Raytheon Aircraft Company · C50
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 ↗