# STC ST00371WI-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Duncan Aviation Inc, United States
- Description: Installation of an AlliedSignal, Inc., (Bendix/King) CAS 67A Traffic Alert and CollisionOLLISION SYSTEM (TCAS II)
- Applied: September 16, 1995
- Status date: July 18, 2007
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE)
- Certificate PDF: https://openairdocs.org/files/sha256/45/d8/45d815779bc8de53886c4337c0e63c37d3abf6bf50ed698811c5b690f60d614a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/19932B83F056C38B86257404005F1CF5.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00371WI-D

## ADs that name it (0)

None.

## Approved models (4)

- Cessna Aircraft Company 500 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))
- Cessna Aircraft Company 550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))
- Cessna Aircraft Company 560 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))
- Cessna Aircraft Company S550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))

## 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: ST003 1W-D This certificate issued to: Duncan Aviation Inc.

3701 Aviation Road Lincoln, NE 68524 Certifies that the change in the type design for the following product with the limitations and conditions therefore as specified hereon meets the airwerthiness requirement's of Part 25 of the Federal Aviation Poegulations.

Original Product --Type Certificate Number: A22CE Cessna Model: 500, 550, $550, 560 Description of Type Design Change: Installation of an AlliedSignal, Inc., (Bendix/King) CAS 67A Traffic Alert and Collision Avoidance System (TCAS II). Data Required: (1) Duncan Aviation, Inc., Document List No. 10046000, Revision A, Dated October 11, 1995, (2) Duncan Aviation, Inc., Document No. 40154500, FAA Approved Airplane Flight Manual Supplement, dated October 12, 1995, or later FAA Approved revisions to (1) or (2).

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer.

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.

suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Avittion Date of Application: September 16, 1995 Date Reissued: July 18, 2007 Date of Issuance: October 12, 1995 Date Amended:

FEDERAL AVIATION of the Administrater (Signature) P. Mike Chick, Jr.

TOMNISTRATIO Duncan Aviation, Lincoln, Nebraska DAS Administrator, DAS-501013-CE (Title)

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

## Every issue (1)

- July 18, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/45/d8/45d815779bc8de53886c4337c0e63c37d3abf6bf50ed698811c5b690f60d614a)

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