SA01446SE
Installation of Hartzell HC-C2YR-1BF/F8477-4 propeller. Held by Aero Mark INC. Last revised November 4, 2004. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sky International Inc.; Sky International Inc.; Sky International Inc.
- Models
- A-1, A-1A, A-1B
- Type certificates
- A22NM, A22NM, A22NM
- 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 21, 2026.