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

SA2794NM-D

The activation of the Windshear function of the Sundstrand Mark VII Dual Function Ground Proximity/Windshear Warning System Computer. The installation is in accordance with United Air Lines DAS 1 WE Approved Amended Drawing List No. 2794 dated April 29, 1993 or later FAA approved revision. United Air Lines Approved Flight Manual Supplement to FAA Approved Flight Manual No. MDC-J5830 dated April 26, 1993 or later FAA approved revision is required as part of this modification. Held by United Airlines INC, which holds 520 approved modifications in all. Last revised November 30, 2011. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
DC-10-30
Type certificate
A22WE
On this site
Mcdonnell Douglas DC-10 17 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 22, 2026.