FAA · Supplemental Type Certificate
STC ST03125NY
Installation of an Innovative Solutions and Support (IS&S) Integrated Flat Panel Display System (IFPDS) and L-3 Avionics Systems GH-3100 Electronic Standby Instrument System (ESIS)
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 (3)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗