# STC ST00041WI

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Learjet Inc, United States
- Description: Installation of mach trim system.
- Applied: February 8, 1993
- Status date: February 23, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/e0/15/e015b9d92ce510bc3994ca4696cb357dd0a8764847df5ea965488084ec305c3a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8ADFC51ABC66EBF785256CC2006A6F88.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00041WI

## ADs that name it (0)

None.

## Approved models (1)

- Learjet Inc. Learjet 31 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST00041WI This certificate issued to: Learjet Inc.

8220 W. Harry Wichita, KS 67209 Part 25 of the ederal Aviation Regulalionseffective February 1, 1965, as amended and Special Conditions as Original Product negrolonipely Plumertificate Data sheet No. ALOCE Make:

Model: Learjet 31 Description of Type Design Change: Installation of Mach Trim System in accordance with: (1) Learjet Inc. Master Document List (MDL) No. T100088, No Revision, dated February 17, 1993, and (2) FAA Approved Airplane Flight Approved revisions of (1) or (2). Manual Supplement (AFMS) W1281, dated February 23, 1993, or later FAA Limitations and Conditions: This approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

Date of Application: February 08, 1993 Sinle vissued:

Date of Issuance: February 23, 1993 Jale umended:

FEDERAL AVIATIO By Direction of the Administrator Ronald K. Rattgelen TAMIN STRANDS Ronald K. Rathgeber, Acting Manager Wichita Aircraft Certification Office (Title)

## Every issue (1)

- February 23, 1993: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e0/15/e015b9d92ce510bc3994ca4696cb357dd0a8764847df5ea965488084ec305c3a)

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