The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · issued

SA11914IB

Installation of the MT-Propeller Entwicklung GmbH MTV-47-1-()-C-F-R(P)/CFR260-361(). Held by Mt-Propeller Entwicklung GMBH (Germany), which holds 21 approved modifications in all. Last revised February 11, 2025. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
300LW, 300, B300, B300C
Type certificates
A24CE, A24CE, A24CE, A24CE
On this site
Beechcraft 300 King Air 300 132 registered
Beechcraft B300 King Air 350 784 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 5, 2026.