SA03251AT
For Lake Model 250, including this model incorporating STC SA469NE, replace existing propeller with MT-Propeller model no. MTV-9-B-C-R(M)/CRLD193-109 (reversing type) per MT-Propeller Installation, Doc. No. E-1261, dated 11/10/2005 or later FAA approved revision or, install Propeller model no. MTV-9-B/LD193-109 (non-reversing type) per Doc. No. E-1262, dated 11/10/2005 or later FAA approved revision. Held by Mt- Propeller Entwicklung GMBH (Germany), which holds 66 approved modifications in all. Last revised August 15, 2006. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- REVO Incorporated
- Models
- Lake Model 250
- Type certificate
- 1A13
- 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.