FAA · Supplemental Type Certificate
STC ST04186NY
Installation of the Prolink/Universal UNS1-Fw FMS, CVR, Unilink and Latitude DL-150 Iridium Transceiver to include LPV, FANS-1A, ATN-81
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 (2)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗