# STC ST04421CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Flightstar Corporation, United States
- Description: Installation of a Data link communication system supporting FANS 1/A+ capability
- Applied: January 9, 2017
- Status date: September 3, 2019
- Product: Aircraft
- Certification basis: Part 21
- Data sheets: [TCDS T00008WI](https://openairdocs.org/tcds/T00008WI)
- Certificate PDF: https://openairdocs.org/files/sha256/a9/52/a95271f69c0b3a0f2ca0daed82e15a59160d474510a7515dc10b85d3aa313a68
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DC0B896B22B164DF8625847000653B59.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST04421CH

## ADs that name it (0)

None.

## Approved models (1)

- Learjet Inc. 45 ([TCDS T00008WI](https://openairdocs.org/tcds/T00008WI))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- September 3, 2019: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a9/52/a95271f69c0b3a0f2ca0daed82e15a59160d474510a7515dc10b85d3aa313a68)

---
From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.