SA1417NM
Installation of a Franklin 6AS-350-A or 6AS-350-A1 engine with an AiResearch TE-0657turbosupercharger and Hartzell HC-C2YF-1BF/F8459A-4 to -8 or Hartzell HC-C2YF-1BF/8459A-4Q or -8Q propeller. Held by Franklin Aircraft Engines INC., which holds 18 approved modifications in all. Last revised April 9, 1999. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Hawker Beechcraft Corporation; Hawker Beechcraft Corporation
- Models
- C35, D35
- Type certificates
- A-777, A-777
- On this site
- Beechcraft C35 258 registered
Beechcraft D35 142 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 5, 2026.