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

SE12GL

Installation of oil filler cap. Held by Ray Whyte Electric Products CO.. Last revised July 11, 1973. 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; 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; 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
IO-470-S, IO-470-K, IO-470-U, IO-470-R, IO-470-M, IO-470-L, IO-470-J, IO-470-H, IO-470-G, IO-470-F, IO-470-E, IO-470-D, IO-470-V, O-300-A, O-300-D, O-300-B, O-300-C, O-300-E, O-470-11, O-470-13, O-470-4, O-470-15, IO-470-C, IO-360-A, IO-360-D, IO-360-C, IO-360-B, IO-520-D, IO-520-A, IO-520-E, IO-520-J, IO-520-L, IO-520-K, IO-520-F, GTSIO-520-D, GTSIO-520-H, GTSIO-520-C, GTSIO-520-F, TSIO-520-H, TSIO-520-G, TSIO-520-C
Type certificates
3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, 3E1, E-253, E-253, E-253, E-253, E-253, E-269, E-269, E-269, E-269, E-273, E1CE, E1CE, E1CE, E1CE, E5CE, E5CE, E5CE, E5CE, E5CE, E5CE, E5CE, E7CE, E7CE, E7CE, E7CE, 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 5, 2026.