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

SA2234CE

Installation of a RH forward emergency exit. Held by Avcon Industries INC, which holds 121 approved modifications in all. Last revised August 18, 2000. System: emergency equipment.

What it applies to

Kind of product
Aircraft
Design holder
Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.
Models
Learjet 25D, Learjet 25B, Learjet 35A (C-21A), Learjet 25, Learjet 25F, Learjet 35, Learjet 25A, Learjet 25C, Learjet 36, Learjet 36A
Type certificates
A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE
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.