# STC ST04434NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Jet Aviation AG, Switzerland
- Description: Installation of Honeywell Enhanced Ground Proximity Warning System (EGPWS) MKV-A upgrade
- Applied: December 11, 2019
- Status date: December 23, 2019
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/2a/56/2a5610df63b6767b7c41851bef341456a9340e845db2a81187fb60d032d7fa32
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E2E57CDA45A27ADC862585A5004090AE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST04434NY

## ADs that name it (0)

None.

## Approved models (2)

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

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title ST04434NY Jet Aviation AG Aeschengraben 6 4051 Basel, Switzerland Federal Aviation Regulations.

1. Installation of Honeywell Enhanced Ground Proximity Warning System (EGPWS) MKV-A upgrade must be in accordance with Jet Aviation AG Master Data List No. JBSL-M-01343MDL-01, Issue 1, dated December 3, 2019, or later European Union Aviation Safety Agency (EASA) approved revision.

2. Maintenance of this modification must be in accordance with Jet Aviation AG Instructions for Continued Airworthiness No. JBSL-M-01343ICA-01, Issue 1, dated August 16, 2019, or later EASA accepted revisions.

3. Operation must be in accordance with Jet Aviation AG Airplane Flight Manual Supplement No. JBSL-M-01343AFM-01, Issue 1, dated December 4, 2019, or later EASA approved revision.

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.

Anthony E. Gallo Manager New York ACO Branch BOEING 747-400 Series, 747-400F Series December 11, 2019 December 23, 2019 IMPORT A20WE 2

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

To (Name and address of transferee)

From (Name and address of grantor)

2 ST04434NY

## Every issue (1)

- December 23, 2019: Issued, Current. [certificate](https://openairdocs.org/files/sha256/2a/56/2a5610df63b6767b7c41851bef341456a9340e845db2a81187fb60d032d7fa32)

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