SA12421IB
Installation of the MT-Propeller Entwicklung GmbH MTV-12-B/180-59() propeller. Held by Mt-Propeller Entwicklung GMBH (Germany), which holds 21 approved modifications in all. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Mooney International Corporation; Mooney International Corporation; Mooney International Corporation; Mooney International Corporation
- Models
- M20A, M20C, M20B, M20D
- Type certificates
- 2A3, 2A3, 2A3, 2A3
- On this site
- Mooney M-20 6,247 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.