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

SE7422SW

Installation of Performance Engineering roller rocker arms. Held by Performance Engineering, which holds 7 approved modifications in all. Last revised May 6, 1988. 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
Models
IO-520-J, IO-520-K, IO-520-D, IO-520-A, IO-520-BA, IO-520-M, IO-520-BB, IO-520-C, IO-520-CB, IO-520-E, IO-520-F, IO-520-L
Type certificates
E5CE, E5CE, 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 5, 2026.