FAA · Supplemental Type Certificate
STC SA01170LA
: Installation of Sandel Avionics SN3308 Navigation Display Unit in accordance with FAA Approved Sandel Avionics Master Drawing List, Document No. ST8691LA-A-01, Revision "B", dated May 14, 2001, or later FAA approved revision. FAA Approved Airplane Flight Manual Supplement, Document No. ST8691LA-A-09, Revision "N/C", dated June 01, 2001, or later FAA approved revision.
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
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗