Installation of an AlliedSignal Mark II ACARS Communications Management Unit (CMU) .
FAA holder: Honeywell International Inc
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 10 selected supplemental type certificates with status Current whose public applicability data names the Airbus A321 Series. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 10 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Honeywell International Inc
FAA holder: HAECO Cabin Solutions LLC
FAA holder: JK Aerospace Inc.
FAA holder: JK Aerospace Inc.
FAA holder: JK Aerospace Inc.
FAA holder: ARINC Inc
FAA holder: Airline Container Manufacturing Co Inc
FAA holder: JK Aerospace, Inc.
FAA holder: US Airways, Inc
FAA holder: Sterling Beverage Systems, Inc