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

SA7082NM

Manufacture and installation of compact power drive units in the fore and aft lower lobe cargo decks. Held by Aero Union Corporation, which holds 2 approved modifications in all. Last revised April 21, 1994. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
Models
747-300 Series, 747-100B SUD Series, 747, 747SP Series, 747-200C Series, 747-200F Series, 747-200B Series, 747-100 Series, 747-400 Series
Type certificates
A20WE, A20WE, A20WE, A20WE, A20WE, A20WE, A20WE, A20WE, A20WE
On this site
Boeing 747 192 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 8, 2026.