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

SA2763NM-D

Installation of Dual Mode S/ATCRBS Transponder System (in place of existing Dual ATCRBS Transponder System). In addition, wiring provisions for interconnection of the Mode S transponders and a future TCAS computer are installed. These installations were accomplished in accordance with United Air Lines DAS-1-WE Approved Drawing List No. 2763, dated June 24, 1989, or later FAA approved revisions. United Air Lines FAA Approved Flight Manual Supplement on the Collins Mode S/ATCRBS Transponder dated June 24, 1989 for Boeing 737-322 Airplane Flight Manual D6-8730.322 is required as part of this installation. Held by United Airlines INC, which holds 520 approved modifications in all. Last revised November 30, 2011. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
737-300 Series
Type certificate
A16WE
On this site
Boeing 737 2,892 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.