FAA · Supplemental Type Certificate
STC SA2204WE
Installation of 2 AiResearch TPE331-1 series turbo prop engines with Hartzell HCB3TN propellers: 8-1/2 inches extension of fuselage and ventral fin, tricycle landing gear installation and related modifications.
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 (12)
- A-765 Raytheon Aircraft Company · C-45G
- A-765 Raytheon Aircraft Company · TC-45G
- A-765 Raytheon Aircraft Company · C-45H
- A-765 Raytheon Aircraft Company · TC-45H
- A-765 Raytheon Aircraft Company · TC-45J
- A-765 Raytheon Aircraft Company · G18S
- A-765 Raytheon Aircraft Company · E18S-9700
- A-765 Raytheon Aircraft Company · D18S
- A-765 Raytheon Aircraft Company · D18C
- A-765 Raytheon Aircraft Company · H18
- A-765 Raytheon Aircraft Company · JRB-6
- A-765 Raytheon Aircraft Company · UC-45J (SNB-5)
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 ↗