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

ST01805WI

Modification of Rockwell Collins TCAS II System Installation with DC powered TCAS Transmitter Receiver Processor. Held by Rockwell Collins INC, which holds 359 approved modifications in all. Last revised July 19, 2019. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; Beechcraft Corporation; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; Embraer S.A.; Textron Aviation Inc.
Models
A319-111, A319-112, A319-113, A319-114, A319-115, A319-131, A319-132, A319-133, A320-111, A320-211, A320-212, A320-214, A320-231, A320-232, A320-233, A320-251N, A320-271n, A320 -216, A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, A321-232, A321-251N, A321-253N, A321-271N, Avro 146-RJ100A, Avro 146-RJ70A, Avro 146-RJ85A, BAe 146-100A, BAe 146-200A, BAe 146-300A, HS.125 Series 700B, 737-900 Series, 747-8 Series, 757-300 Series, MD-10-30F, EMB-120, MU-300
Type certificates
A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A49EU, A49EU, A49EU, A49EU, A49EU, A49EU, A3EU, A16WE, A20WE, A2NM, A22WE, A31SO, A14SW
On this site
Airbus A319 329 registered
Airbus A320 797 registered
Airbus A321 931 registered
Boeing 737 2,893 registered
Boeing 747 192 registered
Boeing 757 440 registered
British Aerospace AVRO 146 12 registered
British Aerospace BAE 146 15 registered
Embraer EMB-120 41 registered
Mcdonnell Douglas MD-10 15 registered
Mitsubishi MU-300 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 21, 2026.