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

ST01459WI-D

Rockwell Collins DLM-900 ACARS CORE Software Upgrade. Held by Rockwell Collins INC, which holds 359 approved modifications in all. Last revised August 26, 2014. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Airbus; Airbus; 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; 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
A300 F4-605R, A300 F4-622R, 737-300 Series, 737-400 Series, 737-500 Series, 737-600 Series, 737-700 Series, 737-700C Series, 737-800 Series, 747-400 Series, 747-400F Series, 757-200 Series, 757-200PF Series, 767-300 Series, 767-300F Series, 767-400ER Series, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), MD-90-30
Type certificates
A35EU, A35EU, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A20WE, A20WE, A2NM, A2NM, A1NM, A1NM, A1NM, A6WE, A6WE, A6WE, A6WE
On this site
Airbus A300 120 registered
Boeing 737 2,892 registered
Boeing 747 192 registered
Boeing 757 440 registered
Boeing 767 584 registered
Mcdonnell Douglas DC-9 93 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 20, 2026.