FAA · Supplemental Type Certificate
STC SR04390CH
Installation of an Electronic Flight Instrument System (EFIS) in accordance with StandardAero Master Data List 1036284, Revision (B), dated June 5, 2019 or later FAA approved revision.
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 (10)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗