# STC ST0836CH-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Landmark Aviation, United States
- Description: Installation of Honeywell N1 Digital Electronic Engine Control (DEEC)
- Applied: April 14, 1998
- Status date: April 25, 2006
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/00/39/0039955c22504d5047a0953e2cdc5ae75fcc7c77d69e9a4fd19b712494108e8b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3A9116B1F0CAFCA3862575DF005D789E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST0836CH-D

## ADs that name it (0)

None.

## Approved models (6)

- Learjet Inc. 31 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 31A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 35 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 36 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## 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.

Part 25 of the Federal Aviation Regulations. See Type Certificate Data Sheet No. A10CE as amended by Special Condition No. 25-270-SC, dated July 1, 2004, Docket No. NM286 for complete certification basis.

Installation of Honeywell N1 Digital Electronic Engine Control (DEEC) in accordance with Garrett Aviation Services drawing list DL836 revision ”J” dated June 24, 2005, or later FAA approved revision.

1) Compatibility of this design change with previously approved modifications must be determined by the installer.

2) FAA Approved Airplane Flight Manual Supplement document #AFMS176 revision “E” dated June 29, 2005 or later FAA approved revision is a required part of this modification for aircraft models 35, 35A, 36, 36A..

3) FAA Approved Airplane Flight Manual Supplement document #30-8065-001 revision “D” dated June 29, 2005 or later FAA approved revision is a required part of this modification for aircraft models 31, 31A.

4) If 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.

Landmark Aviation 1200 North Airport Drive Capital Airport Springfield, Illinois 62707 A10CE Make : Learjet Inc.

Model : 31, 31A, 35, 35A, 36, 36A Date of application : April 14, 1998

Date of issuance : September 29, 1998

Date reissued : April 25, 2006

Date amended : June 20, 1999; October 18, 2000;

April 27, 2001; June 29, 2005

( Signature) Charles L. Smalley Manager, Systems and Flight Test Branch Chicago Aircraft Certification Office

( Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 3 PAGES

Number

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES

Number ST00XXXCH-D Date of Issuance: XXXXXX Date Amended: XXXXXX

## Every issue (1)

- April 25, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/00/39/0039955c22504d5047a0953e2cdc5ae75fcc7c77d69e9a4fd19b712494108e8b)

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