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

SA2066NM

Coupling of a previously installed Texas Instruments Model 9100 Loran-C system with the existing Bendix FCS-810 Flight Control System and Sperry Stars Model IV8 Flight Director System. Held by Western Aircraft Maintenance. Last revised March 21, 1983. System: flight controls.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company
Models
T210L
Type certificate
3A21
On this site
Cessna T210 Turbo Centurion 1,283 registered
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.