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

SE00143SE

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
Models
IO-520-A, IO-520-BA, IO-520-C, IO-520-D, IO-520-E, IO-520-F, IO-520-J, IO-520-K, IO-520-L, IO-520-M
Type certificates
E5CE, E5CE, E5CE, E5CE, E5CE, E5CE, E5CE, E5CE, E5CE, E5CE
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.