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Other aircraft modifications

STC ST01557AT

FAA DRS lists ST01557AT as Current · Reissued, held by Honeywell International Inc, for Airbus A320 Series, Airbus A321 Series, and Airbus A319 Series. Recorded change: Installation of an AlliedSignal Mark II ACARS Communications Management Unit (CMU) . Snapshot dated June 30, 2026.

FAA-listed holder
Honeywell International Inc
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of an AlliedSignal Mark II ACARS Communications Management Unit (CMU) .

ST01557AT identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Airbus A320 Series, Airbus A321 Series, and Airbus A319 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Airbus A320 SeriesA28NMAirbus A321 SeriesA28NMAirbus A319 SeriesA28NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Airbus A320 Series and Airbus A321 Series, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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