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

SA1228NW

Installation of hard point fittings at five places on the fuselage bottom for transporting one or two Boeing Vertel 107 helicopter blades; and the relocation of antennae and anti-collision lights. Held by Columbia Helicopters INC, which holds 66 approved modifications in all. Last revised May 6, 1981. System: electrical power.

What it applies to

Kind of product
Aircraft
Design holder
Hawker Beechcraft Corporation
Models
200C
Type certificate
A24CE
On this site
Beechcraft 200 King Air 200 249 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 22, 2026.