# STC ST00028DE-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Learjet Inc, United States
- Description: Installation of MK-VI GPWS system and radio altimeter system.
- Applied: February 26, 1993
- Status date: May 7, 2002
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A8SW](https://openairdocs.org/tcds/A8SW)
- Certificate PDF: https://openairdocs.org/files/sha256/57/8f/578ff1a5a539ea1c88b635037afb7c41207ceb02c53a0d59f0bba2447741be2e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/03A45709869A469885256CC2006A6F63.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00028DE-D

## ADs that name it (0)

None.

## Approved models (2)

- Fairchild Aircraft Corporation SA226-TC ([TCDS A8SW](https://openairdocs.org/tcds/A8SW))
- Fairchild Aircraft Corporation SA227-AC (C-26A) ([TCDS A8SW](https://openairdocs.org/tcds/A8SW))

## 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: ST00028DE-D This certificate issued to:

Learjet Inc.

One Learjet Way Wichita, Kansas 67209 Part 23 of the Federal Aviation Regulations.

Original Product --Type Certificate Number: A8SW Make: Fairchild Aircraft Model: SA226-TC and SA227-AC Description of Type Design Change:

Installation of MK-VI GPWS System and Radio Altimeter System in accordance with AMR Combs, Inc.

Certification Drawing List 7500583, revision N/C, dated March 26, 1993, FAA approved March 29, 1993 or later approved revision.

1. FAA approved Airplane Flight Manual Supplement, dated March 29, 1993, or later approved revision is required.

2. This approval should not be extended to aircraft of this model on which previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft.

Date of Application: February 26, 1993 Date Reissued: January 4, 1995 May 7, 2002 Date of Issuance: March 29, 1993 Date Amended: November 2, 1993 FEDERAL AVIATION By Direction of the Administrator Da T. Gross (Signature) David T. Grossman Program Manager TOMINSTRATO Northwest Mountain Region, Denver, Colorado Denver Aircraft Certification Office.

(Title) 47

## Every issue (1)

- May 7, 2002: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/57/8f/578ff1a5a539ea1c88b635037afb7c41207ceb02c53a0d59f0bba2447741be2e)

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