SA02559SE
Installation of Raisbeck/Hartzell Five-Blade Swept Turbofan Propellers. Held by Raisbeck Engineering INC., which holds 45 approved modifications in all. Last revised September 1, 2023. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
- Models
- 300LW, B300, B300C (MC-12W), B300C (UC-12W), B300C, 300
- Type certificates
- A24CE, A24CE, A24CE, A24CE, A24CE, A24CE
- On this site
- Beechcraft 300 King Air 300 131 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 7, 2026.