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

SA02498CH

Installation of Cleveland Wheel and barke Kit 199-64 (including 30-28D brake assembly and 40-40B wheel assembly). Held by Rare Aircraft LTD, which holds 10 approved modifications in all. Last revised May 21, 2018. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company
Models
UPF-7, VPF-7, YPF-6, YPF-7, YPF, ZPF-6, ZPF-7
Type certificates
A-642, A-642, ATC 586, ATC 586, ATC 586, ATC 586, ATC 586
On this site
Waco UPF-7 189 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 5, 2026.