SA307NW
Installation of a 1968 Cessna Model 172 airframe (forward of Station 27) and engine cowling;l Cessna Model 172 AVCON conversion power-pac consisting of a Lycoming O-360-A1A engine, Cessna 172 engine mount (P/N 0551017-1), Hartzell HC-C2YK-1F/7666A-2 propeller, carburetor air box and nose cowling; and a Cessna Model 172 baggage door assembly. Held by Mace, Kenneth. Last revised May 5, 1979. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cessna Aircraft Company
- Models
- 170B
- Type certificate
- A-799
- On this site
- Cessna 170 2,085 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 22, 2026.