SP1408NW
Installation of Aircraft Propulsion Systems, Inc. rollers in place of the Hamilton Standard counterweight bearings. Held by Canyon Oaks Propeller D/B/A H & Propeller Shop INC.. Last revised November 18, 2019. System: propeller.
What it applies to
- Kind of product
- Propeller
- Design holder
- Hamilton Standard Division; Hamilton Standard Division; Hamilton Standard Division TC
- Models
- 2D30, 12D40, 3D
- Type certificates
- P-206, P-257, 249
- 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.