FAA · Supplemental Type Certificate
STC SA04681NY
Installation of MT-Propeller Entwicklung GmbH model MTV-6-( )-C-F/CF190-69( ) 3-blade, constant\nspeed, full feathering propellers and spinners
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 (3)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗