# STC ST10085SC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc, United States
- Description: Installation of a Davtron Clock.
- Applied: April 23, 2002
- Status date: April 19, 2017
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- Certificate PDF: https://openairdocs.org/files/sha256/f8/52/f852b93cccfcbd011f311ca472d2a219c393d4630708966edb652157281b93da
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5C41148106ECBA428625817C00595BDE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST10085SC

## ADs that name it (0)

None.

## Approved models (2)

- Hawker Beechcraft Corporation Hawker 800XP ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation Hawker 850XP ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

## 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 ST10085SC Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67215 4b Civil Air Regulations.

Hawker Beechcraft Corporation Hawker 800XP; Hawker 850XP 2 A3EU Installation of a Davtron Clock in accordance with STC Master Drawing List Number 800-503, Revision G, dated October 28, 2002, or later FAA approved revision. FAA approved Airplane Flight Manual Supplement Document Number 800-309, dated November 1, 2002, or later FAA approved revision is required.

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

May 9, 2007; April 19, 2017 June 29, 2006 April 23, 2002 November 1, 2002 Mark Fuller STC ODA administrator ODA-100129-CE

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

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (3)

- April 19, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f8/52/f852b93cccfcbd011f311ca472d2a219c393d4630708966edb652157281b93da)
- May 9, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/00/c5/00c5e95542952f606a7d0e8181a21c231100013b340df24dae6aff97e2c10ea3)
- June 29, 2006: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/38/67/3867327c16c54341e4b0730198aed3b99101cc12c7545470950af0d50adf54a8)

---
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.