FAA · Supplemental Type Certificate
STC SA2532NM
Installation of Collins Model EFIS 85a, 4 tube electronic flight instrument system and dual Collins Model FD-109 flight director system. (1-11 SERIES 401/AK)
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)
Certification basis — 14 CFR
Comments
See SA2532NM-D for surrendered certificate
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗