SA12472IB
Installation of the MT-Propeller Entwicklung GmbH MTV-15-B/203-58 propeller. Held by Mt-Propeller Entwicklung GMBH (Germany), which holds 21 approved modifications in all. Last revised September 17, 2026. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.
- Models
- MX-7-180, MX-7-180A, MX-7-180B, MX-7-180C, MXT-7-180, MXT-7-180A
- Type certificates
- 3A23, 3A23, 3A23, 3A23, 3A23, 3A23
- On this site
- Maule MX-7 192 registered
Maule MXT-7 134 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.