# STC ST00263DE-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Learjet Inc., United States
- Description: Upgrade of dual Honeywell AZ-800 Air Data Computers.
- Applied: October 23, 1996
- Status date: June 13, 2002
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A21EA](https://openairdocs.org/tcds/A21EA)
- Certificate PDF: https://openairdocs.org/files/sha256/99/cb/99cbe964261a394f6f92c374afa745b480ea96e5d6da7efc1fab49d2eb56de39
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/33B87EBFDBDC2E4685256CC2006A71E7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00263DE-D

## ADs that name it (0)

None.

## Approved models (2)

- Bombardier Inc. CL-600-1A11 (CL-600) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2A12 (CL-601) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))

## 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: ST00263DE-D This certificate issued to: Learjet Inc.

1255 E. Aero Park Blvd.

Tucson, Arizona 85706 Part 25* of the Federal Poviation Porgulations.

Original Product Type Bertificate Number: A21EA Make: Canadair Model: CL-600-1A11, -2A12 Description of Type Design Change:

Upgrade of dual Honeywell AZ-800 Air Data Computers in accordance with Learjet Inc. Master Document List BAS63010007, revision (-), dated February 2, 1997, FAA approved February 2, 1997, or later approved revision.

This approval should not be extended to aircraft of this model 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, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft.

A copy of this certificate must be maintained as part of the permanent records for the modified aircraft.

3_ 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.

revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of Application: October 23, 1996 Date Reissued: June 13, 2002 Date of Issuance: February 2, 1997 Date Amended: October 8, 1997: May 5, 1997 By Direction of the Administrator FEDERAL AVIATIO Aram (Signature) MICHAEL L. WILLIAMS TOMINISTRATO (DAS-S-30) DAS ADMINISTRATOR (Title)

## Every issue (1)

- June 13, 2002: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/99/cb/99cbe964261a394f6f92c374afa745b480ea96e5d6da7efc1fab49d2eb56de39)

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