SE3683SW
Installation of alternator clutch hub Teledyne part no. 640934 with Teledyne part no. 642056 alternator. This mod has been found to be compatible with STC SE4327SW and SE3714SW. Held by Ram Aircraft Limited Partnership, which holds 174 approved modifications in all. Last revised October 8, 2001. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors
- Models
- TSIO-520-LB, TSIO-520-L, TSIO-520-NB, TSIO-520-E, TSIO-520-D, TSIO-520-J, TSIO-520-N, TSIO-520-B, TSIO-520-BB, TSIO-520-JB, TSIO-520-WB, TSIO-520-EB, TSIO-520-K, TSIO-520-KB, TSIO-520-DB, TSIO-520-VB
- Type certificates
- E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE, E8CE
- 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.