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

SA1789CE-D

Install KAP 100 single axis, KAP 150 two axis, or KFC 150 two axis flight control system with optional third (yaw)axis and optional KAS 297B vertical speed and altitude selector. Held by Honeywell International INC, which holds 599 approved modifications in all. Last revised March 26, 2020. System: flight controls.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.
Models
F33A
Type certificate
3A15
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.