# STC ST00121WI

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc., United States
- Description: Installation of Bendix/King CAS-66A TCAS I system.
- Applied: November 9, 1993
- Status date: March 9, 2018
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A9NM](https://openairdocs.org/tcds/A9NM)
- Certificate PDF: https://openairdocs.org/files/sha256/08/16/0816e50e36d171b8ee4637a1ed79fec558a17cdcabaf5ba077271b53c7047823
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AD78710FFD4A71048625829F005545F5.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00121WI

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 650 ([TCDS A9NM](https://openairdocs.org/tcds/A9NM))

## 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 Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67215 2 ST00121WI Federal Aviation Regulations.

25 A9NM Installation of Bendix/King CAS-66A TCAS I System in accordance with

1. Cessna Aircraft Completion Center Drawing No. CF90011, Revision B, dated December 16, 1993, and

2. FAA Approved Airplane Flight Manual Supplement (AFMS), dated December 12, 1993, or later FAA approved revision to 1 or 2.

This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated, unless it is determined by the installer 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.

Cessna 650 March 9, 2018 November 9, 1993 December 22, 1993 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 (1)

- March 9, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/08/16/0816e50e36d171b8ee4637a1ed79fec558a17cdcabaf5ba077271b53c7047823)

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