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

SE23SW

Installation of Bendix RS-5BD1 or RSA-5AD1 fuel injection system. Held by Bendix Corporation, which holds 21 approved modifications in all. Last revised December 29, 1986. 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
Models
E185-1, E185-8, E185-9, E185-3, E185-11, E225-8, E225-4, O-470-13, O-470-11, O-470-4
Type certificates
E-246, E-246, E-246, E-246, E-246, E-267, E-267, E-269, E-269, E-269
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.