SA09971SC
Installation of Hartzell model PHC-C3YF-2UF/FC7693DF or PHC-C3YF-2UF/FC7693DFB propellers which are limited to aircraft previously approved to install 78-inch diameter props and have Tel Con Motors TSIO-520 series engines with maximum rated power from 285 hp to 350 hp. Also compatible with aircraft having TCM TSIO-520 engines modified by STC SE09261SC, SE09104SC, or SE4327SW for rated power increase. Held by Ram Aircraft Limited Partnership, which holds 174 approved modifications in all. Last revised May 16, 2002. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
- Models
- T310P, T310Q, T310R, 340 Series, 320D, 320E, 320F, 340A, 340, 402C, 414, 414A
- Type certificates
- 3A10, 3A10, 3A10, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, A7CE, A7CE, A7CE
- On this site
- Cessna 320 137 registered
Cessna 340 707 registered
Cessna 402 174 registered
Cessna 414 Chancellor 605 registered
Cessna T-310 207 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.