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

SA4704SW

Installation of 15-gallon tip tanks. Held by D'Shannon Products LTD., which holds 118 approved modifications in all. Last revised May 15, 2018. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Beechcraft Corporation; Beechcraft Corporation
Models
A45 (Military T-34A; B-45), D45 (Military T-34B)
Type certificates
5A3, 5A3
On this site
Beechcraft A45 167 registered
Beechcraft D-45 75 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 7, 2026.