The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

SA2556WE

Installation of Rajay turbosupercharged Continental TSIO-520-D engine. Held by Talco Aviation, which holds 49 approved modifications in all. Last revised August 31, 2023. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
Models
35-C33A, E33A, E33C, F33A, F33C, S35, V35, V35A, V35B
Type certificates
3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15
On this site
Beechcraft 35 Bonanza and Debonair 1,077 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.