# STC SA00172WI

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: CAV Ice Protection Inc, United States
- Description: Installation of TKS anti-icing system components, with placard stating 'Flight into known icing conditions is prohibited.'
- Applied: May 3, 1994
- Status date: March 4, 2015
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/18/10/1810f6485202984a2435bde8d3def32929def436e6ebf76c1f6c52121de4052e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9BC574364924C2F386257E26006B5B0B.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA00172WI

## ADs that name it (0)

None.

## Approved models (7)

- Cessna Aircraft Company 210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company P210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## 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.

This certificate issued to: CAV Ice Protection Inc.

30 Leawood Drive New Century, KS 66031

Part 3 of the Civil Air Regulations, effective May 15, 1956, plus additional requirements referenced in Type Certificate Data Sheet No. 3A21.

Original Product - Type Certificate Number : 3A21 Make : Cessna Model : 210L, T210L, 210M, T210M, 210N, T210N, P210N Description of Type Design Change:

Installation of TKS Anti-Icing System Components, with placard stating “FLIGHT INTO KNOWN ICING CONDITIONS IS PROHIBITED.” Data Required: (1) Aerospace Systems & Technologies Drawing Index No.

07600DL, Revision 2, dated June 2, 1994; and (2) FAA Approved Airplane Flight Manual Supplement, dated July 14, 1994, or later FAA approved revisions of (1) or (2).

1) This installation is not approved for flight into known icing conditions.

2) 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 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.

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.

Date reissued : July 8, 2008, November 5, 2013;

March 4, 2015

Date amended : April 16, 1998

Original signed by Grant Youngdahl (Signature) Grant E. Youngdahl Program Manager Wichita Aircraft Certification Office (Title)

Date of application : May 3, 1994 Date of issuance : July 14, 1994

## Every issue (2)

- March 4, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/18/10/1810f6485202984a2435bde8d3def32929def436e6ebf76c1f6c52121de4052e)
- July 8, 2008: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/7a/79/7a79eab5adfe40173677fd4cefe71c37babef12d1a6cecce9dd2d50c38228485)

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