# STC ST521CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Canard Aerospace Corporation, United States
- Description: 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.
- Applied: February 22, 1996
- Status date: April 18, 2007
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A1NM](https://openairdocs.org/tcds/A1NM)
- Certificate PDF: https://openairdocs.org/files/sha256/1b/21/1b21db8171b1f9a661a90c522ec728610b63862bb3d363a4f4164487237ee232
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F66564DC1693A359862572DF0051ED6A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST521CH

## ADs that name it (0)

None.

## Approved models (4)

- The Boeing Company 767-200 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))
- The Boeing Company 767-300 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))
- The Boeing Company 767-300F Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))
- The Boeing Company 767-400ER Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA FORM 8110-2(10-68) PAGE 1 of 3 PAGES Number ST521CH This certificate issued to Canard Aerospace 250 South Fuller Street Shakopee, MN 55347

Part 25 of the Federal Regulations.

(See Type Certificate Data Sheet A1NM for complete certification basis.)

Original Product--Type Certificate Number : A1NM Make : Boeing Model : 767-200 Series, 767-300 Series, 767-300F Series, and 767-400ER Series Description of Type Design Change:

Option 1: Applies to 767-300 series aircraft. 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, in accordance with Canard Aerospace Corporation Top Level Document Control Drawing No. 30009, Revision D, dated September 18, 2003, Appendix A, or later FAA approved revision.

Option 2: Applies to 767-200 series, 767-300 series, 767-300F series and 767-400ER series aircraft. Installation of a Communications Management Unit and pprinter in accordance with Canard Aerospace Corporation Top Level Document Control Drawing No. 30009, Revision D, dated September 18, 2003, Appendix B, or later FAA approved revision.

1. Compatibility of this design change with previously approved modifications must be determined by the installer.

Date of application : February 22, 1996

Date of issuance : June 20, 1996 Date reissued : April 18, 2007

Date amended : June 21, 2000, September 30, 2003

( Signature) Charles L. Smalley Manager, Systems & Flight Test Branch Chicago Aircraft Certification Office

( Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 3 PAGES

Number

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES

Number ST521CH Date of Issuance: February 22, 1996 Date Amended: April 18, 2007

2. Option 2: Airplane Flight Manual Supplement, Canard Aerospace Corporation (CDC) Document No. 23-3301-04, Revision NC, FAA approved on September 30, 2003, or later FAA Approved revision, is required on board modified aircraft.

3. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

…END…

## Every issue (1)

- April 18, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1b/21/1b21db8171b1f9a661a90c522ec728610b63862bb3d363a4f4164487237ee232)

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