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

SA973NE

Installation of .250-inch thick windshield with L.P. Aero Plastics, Inc. single piece windshield. (210-5A (205A) (210 21058221 THRU 21058510) (210-5(205) S/N 205-0001 THRU 205-0480) (210B S/N 21057841 THRU 21058085) (210C S/N 21058086 THRU 2105813) (210 E S/N 21058511 THRU 21058715). Held by L P Aero Plastics, INC, which holds 21 approved modifications in all. Last revised May 15, 1992. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
Models
210B, 210-5A (205A), 210C, 210D, 210-5 (205), 210E
Type certificates
3A21, 3A21, 3A21, 3A21, 3A21, 3A21
On this site
Cessna 210 Centurion 1,528 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 20, 2026.