# STC ST04468NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: H4 Aerospace (UK) Ltd., United Kingdom
- Description: Installation of Honeywell ADS-B Transponder Upgrade
- Applied: February 11, 2020
- Status date: March 9, 2020
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/7b/dd/7bddde63e5e84fae43984f560f8f446ba0e5c6ce0aec662b81b6dff28877aaa8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9C160E66BDA18AB8862585B5003D4B7E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST04468NY

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 717-200 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## 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 This certificate issued to:

Part of the Original Product – Type Certificate Number: Make:

By Direction of the Administrator Signature Title ST04468NY H4 AEROSPACE (UK) Ltd.

BLUE COURT 39 QUEENSWAY HP2 5HE HEMEL HEMPSTEAD UK Federal Aviation Regulations.

1. Installation of Honeywell ADS-B Transponder Upgrade must be in accordance with H4 Aerospace Modification Summary No. H4A1931, Issue 2, dated December 17, 2019, or later European Union Aviation Safety Agency (EASA) approved revision.

2. Aircraft is to be maintained in accordance with H4 Aerospace Instructions for Continued Airworthiness No. H4AICA027, Issue 2, dated December 17, 2019, or later EASA accepted revision.

3. Operation must be in accordance with H4 Aerospace Airplane Flight Manual Supplement No. H4AFMS052, Rev. 1, dated December 17, 2019, or later EASA approved revision.

1. Maintenance of this modification must be in accordance with the “Airworthiness Limitations” section of H4 Aerospace Instructions for Continued Airworthiness No. H4AFMS052, Rev. 1, dated December 17, 2019, or later EASA approved revision.

2. H4 Aerospace minor modifications H4A1928 and H4A1929 will install provisions for the new TRA-100B Transponders and a new TSO-145c compliant GPS system respectively and both must be embodied prior to the start of this modification.

(See Limitations and Conditions Continued on Page 3 of 3)

Anthony E. Gallo Acting Manager New York ACO Branch BOEING 717-200

February 11, 2020 March 9, 2020 IMPORT A6WE 3

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

To (Name and address of transferee)

From (Name and address of grantor)

3 ST04468NY

FAA Form 8110-2 (5/14) Page 3 of 3 Date of Issuance: March 9, 2020

3. The installer must determine whether this design change is compatible with previously approved modifications.

4. of 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----------

ST04468NY

## Every issue (1)

- March 9, 2020: Issued, Current. [certificate](https://openairdocs.org/files/sha256/7b/dd/7bddde63e5e84fae43984f560f8f446ba0e5c6ce0aec662b81b6dff28877aaa8)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.