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

SE00144SE

Replaces the following Teledyne-Continental part numbers: 641682 (Rocker Arm, Exhaust), 539742 (Rocker Arm, Intake), 539740 (Rocker Arm, Shaft) and 538304 (Pushrod Assembly). Held by Dakota Aircraft Parts INC, which holds 4 approved modifications in all. Last revised April 26, 1995. System: engine.

What it applies to

Kind of product
Engine
Design holder
Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors; Continental Motors
Models
TSIO-520-B, TSIO-520-C, TSIO-520-D, TSIO-520-E, TSIO-520-G, TSIO-520-H, TSIO-520-J, TSIO-520-K, TSIO-520-L, TSIO-520-M, TSIO-520-N, TSIO-520-P, TSIO-520-R, TSIO-520-T, TSIO-520-UB, TSIO-520-VB, TSIO-520-WB
Type certificates
E8CE, 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 21, 2026.