FAA · Supplemental Type Certificate
STC ST01308WI
Installation of L-3 Communications Avionics Systems Inc. (Landmark) Terrain Awareness Warning System (TAWS) model TAWS8100.
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 (4)
Specific sections
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗