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

SE00809WI

Installation of a modified alternate source of supply, engine ignition coil assembly and condenser. Held by Air Repair INC, which holds 15 approved modifications in all. Last revised April 5, 2013. System: engine.

What it applies to

Kind of product
Engine
Design holder
Air Repair Inc.; Air Repair Inc.; Jacobs Aircraft Engine Co.; Jacobs Aircraft Engine Co.; Jacobs Service Company; Teledyne Continental Motors
Models
R-755A2, R-755B2, L-4 Series, L-6 Series, R-755S, W670-23
Type certificates
E-237, E-237, TC 121, TC 195, E1SW, E-162
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.