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

ST00926LA-D

Installation of AlliedSignal Traffic Alert and Collision Avoidance System (TCAS II) and Enhanced Ground Proximity and Warning System (EGPWS). Held by Arinc INC, which holds 31 approved modifications in all. Last revised June 22, 2005. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
DC-10-30F (KC-10A)\nKDC-10)
Type certificate
A22WE
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 20, 2026.