FAA · Supplemental Type Certificate
STC ST04299CH
Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) OUT System utilizing upgraded Aviation Communication & Surveillance Systems (ACSS) XS-950 Mode-S Transponders paired with the aircraft's existing GPS Source or newly installed ADS-B dedicated GPS source listed on AML number ST04299CH, and in accordance with Global Aerospace Design Corp. Master Drawing List, No. GR0252-MDL listed on AML number ST04299CH.
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 (7)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗