SA03657NY
The installation of MT-Propeller Entwicklung GmbH's Model# MTV-9-B/198-52 3-Blade constant speed propellers. Held by Mt- Propeller Entwicklung GMBH (Germany), which holds 66 approved modifications in all. Last revised February 1, 2016. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Commander Aircraft Corporation; Commander Aircraft Corporation; Commander Aircraft Corporation; Commander Aircraft Corporation
- Models
- 114, 114A, 114B, 114TC
- Type certificates
- A12SO, A12SO, A12SO, A12SO
- On this site
- Commander Aircraft Co 114 103 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 20, 2026.