STC SA12066IB

Installation of the MT-Propeller Entwicklung GmbH model MTV-21-A/170-05 propeller

Current Issued Aircraft Small Airplane Rev 07/22/2025 View PDF on drs.faa.gov ↗

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 (2)

TA4CH Diamond Aircraft Industries Inc · DA20-A1
A74EU HOAC-Austria · DV 20 Katana

Certification basis — 14 CFR

Part 23

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗