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

ST01485SE

Installation of Air Traffic Control Mode S Transponders with Elementary/Enhanced Surveillance in Boeing 767-300 airplanes in accordance with Northwest Aerospace Technologies, Inc. (NAT) Master Drawing List (MDL) N0211-D10, Revision B, dated November 19, 2004, or later Federal Aviation Administration (FAA) approved revisions. Held by Northwest Aerospace Technologies INC, which holds 74 approved modifications in all. Last revised December 10, 2004. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
767-300 Series
Type certificate
A1NM
On this site
Boeing 767 583 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.