SA934NW
Installation of a Franklin 6A5-350-A engine, Hartzell HC-C2YF-1BF/F8459-4, Hartzell 82A-4203 spinner, AiResearch turbocharger model TE-0657, and associated systems. Held by Seaplane Flying INC, which holds 18 approved modifications in all. Last revised May 16, 1980. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aermacchi S.p.A.
- Models
- S.205 - 22/R
- Type certificate
- A9EU
- On this site
- Siai-Marchetti S.205/22R 22 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 20, 2026.