FAA · Supplemental Type Certificate
STC ST00940SE
Installation of a the Honeywell Airborne Flight Information System (AFIS) in accordance with Master Drawing List 756-0129-001, Revision A, dated June 12, 2001, or later FAA approved revisions.
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 (1)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗