FAA · Supplemental Type Certificate
STC SA09273SC
Installation of Terra by Trimble TMA 350D audio control panel with integrated marker beacon receiver and intercom system, Terra by Trimble TX 760D VHF communications transceiver,and Terra by Trimble TRT 250D transponder.
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
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗