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Avionics

STC ST521CH

FAA DRS lists ST521CH as Current · Reissued, held by Canard Aerospace Corporation, for Boeing 767-200 Series, Boeing 767-300 Series, and Boeing 767-300F Series, and 1 more aircraft configuration. Recorded change: Installation of a Teledyne Controls Aircraft Communication Addressing and Reporting System (ACARS) Management Unit (MU), a Teledyne Controls Interactive Display Unit (IDU), and a Miltope Thermal Printer. Installation of a Communications Management Unit and pprinter. Snapshot dated June 30, 2026.

FAA-listed holder
Canard Aerospace Corporation
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a Teledyne Controls Aircraft Communication Addressing and Reporting System (ACARS) Management Unit (MU), a Teledyne Controls Interactive Display Unit (IDU), and a Miltope Thermal Printer. Installation of a Communications Management Unit and pprinter.

ST521CH 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: Boeing 767-200 Series, Boeing 767-300 Series, and Boeing 767-300F Series, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 767-200 SeriesA1NMBoeing 767-300 SeriesA1NMBoeing 767-300F SeriesA1NMBoeing 767-400ER SeriesA1NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 767-200 Series and Boeing 767-300 Series, and 2 more aircraft configurations model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes 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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