# STC ST04419NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: GDC ENGINEERING GmbH, Germany
- Description: Installation of the Upper Deck Seats Replacement
- Applied: October 24, 2019
- Status date: October 30, 2019
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/f5/d2/f5d28517842de6f9eb45bb3bb45951faa1c08b3f29a4ce11a35264b020cf69f4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0574377E91B946C7862585AC00474012.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST04419NY

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-400F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (5/14) GDC ENGINEERING GmbH This certificate issued to: DESIGN OFFICES HIGHLIGHT TOWERS MIES-VAN-DER-ROHE-STRASSE 8 // TOWER 1 80807 MUNICH

**GERMANY**

Part 25 of the Federal Aviation Regulations.

A20WE Make: BOEING Model: 747-400F Description of Type Design Change:

1. Installation of the Upper Deck Seats Replacement must be in accordance with GDC Engineering Master Certification Document List No. CCN-B744B, Issue 01, dated October 4, 2019 or later EASA approved revisions.

2. Aircraft is to be maintained in accordance with GDC Engineering Instructions for Continued Airworthiness Document No. B744B-ICA-00, Issue 00, dated September 30, 2019 or later EASA accepted revisions.

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

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

Date of Application: October 24, 2019 Date of Issuance: October 30, 2019 Date Reissued:

By Direction of the Administrator Signature Title Anthony E. GalloManager New York ACO Branch Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is th e property of the STC holder.

Page 1 of 2 IMPORT Number: ST04419NY

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Page 2 of 2FAA Form 8110-2 (5/14)

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: ST04419NY To (Name and address of transferee) From (Name and address of grantor) Extent of Authority (if licensing agreement):

## Every issue (1)

- October 30, 2019: Issued, Current. [certificate](https://openairdocs.org/files/sha256/f5/d2/f5d28517842de6f9eb45bb3bb45951faa1c08b3f29a4ce11a35264b020cf69f4)

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