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

SE01146SE

Option 1) Installation of Gold Coast Aviation crankshaft bearings GCA-21201-AB (rear) and GCA-21301-FB (front) Option 2) Installation of Gold Coast Aviation replacement intake valve guides P/N GCA-20241-IG Option 3) Installation of Gold Coast Aviation replacement exhaust valve guides P/N GCA-20406-EG. Held by Gold Coast Aviation Service INC, which holds 4 approved modifications in all. Last revised December 17, 2002. System: engine.

What it applies to

Kind of product
Engine
Design holder
Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors
Models
W670-16, W670-24, W670-6A, W670-6N
Type certificates
E-162, E-162, E-162, 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 7, 2026.