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

ST00120MC

Installation of multiple mission configuration options, including power and mission equipment racks, non-required communications equipment, mission power distribution system, antennas, optional operator console, and provisions for sponsons with the carriage of external stores. Held by Sierra Nevada Corporation, which holds 30 approved modifications in all. Last revised August 23, 2023. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
328 Support Services GmbH
Models
328-100
Type certificate
A45NM
On this site
Dornier Luftfahrt Gmbh 328 20 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.