# STC ST04457NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Executive Air Craft Ltd, Canada
- Description: Installation of the Honeywell CAS 67A TCAS II / Dual MST 67A Mode S Transponder Upgrade
- Applied: December 2, 2019
- Status date: February 19, 2020
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/35/ad/35ad42638b8487b202dd6821e586f2fa2f98ea3c1b2923b1787ac6843c819afd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D24FCC8CB1DA3169862585B4004411AA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST04457NY

## ADs that name it (0)

None.

## Approved models (1)

- Learjet Inc. 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## 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 (5/14) Page 1 of

Part of the

Signature

Title ST04457NY Executive Air Craft Ltd.

5455 Airport Road South Richmond, British Columbia Canada V7B 1B5 Federal Aviation Regulations.

1. Installation of the Honeywell CAS 67A TCAS II / Dual MST 67A Mode S Transponder Upgrade must be in accordance with Avionics Design Services Ltd. Master Drawing List MDL09061, Revision D, Transport Canada approved November 1, 2019, or later Transport Canada approved revisions.

2. Operation must be in accordance with Executive Air Craft Ltd. Flight Manual Supplement FMS09061-1, Revision A, Transport Canada approved November 5, 2015, or later Transport Canada approved revisions.

3. Maintenance must be in accordance with Transport Canada accepted Executive Air Craft Ltd. Maintenance Manual Supplement (See Description of Type Design Change continued on Page 3 of 3)

1. Compliance with Chapter 4.0 "Airworthiness Limitations" of the Maintenance Manual Supplement is mandatory.

2. You cannot use descriptive data about this design change to duplicate other products. This approval is limited to only the installation made in LEARJET 36A, s/n 037. This STC does not permit manufacturing of parts for multiple installations.

Anthony E. Gallo Manager New York ACO Branch

LEARJET 36A, Serial No. 037 December 2, 2019 February 19, 2020 IMPORT A10CE 3

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

3 ST04457NY

FAA Form 8110-2 (5/14) Page 3 of

3 Date: February 19, 2020

Description of Type Design Change (continued):

MMS09061-1, Revision C, October 16, 2019, or later Transport Canada accepted revisions.

----------END---------- ST04457NY

## Every issue (1)

- February 19, 2020: Issued, Current. [certificate](https://openairdocs.org/files/sha256/35/ad/35ad42638b8487b202dd6821e586f2fa2f98ea3c1b2923b1787ac6843c819afd)

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