SA2122WE
Installation of two Lycoming TIO-540-A2B turbocharged engines and two Hartzell HC-E3YR-2/C8468-6R propellers; or installation of Lycoming TIO-540-J2BD or N2BD and LTIO-540-J2BD or N2BD engines with Hartzell HC-E3RY-2F/FC8468-6R or -8R and HC-E3YR-2LF/FJC8468-6R or -8R propellers and gross weight. Held by Javelin Conversions INC., which holds 11 approved modifications in all. Last revised July 31, 2012. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cessna Aircraft Company; Cessna Aircraft Company
- Models
- 320C, 320E
- Type certificates
- 3A25, 3A25
- On this site
- Cessna 320 137 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 23, 2026.