# STC SA02411CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Knots 2U Ltd., United States
- Description: Installation of the Aero Vent Cabin Ventilation System.
- Applied: February 27, 2007
- Status date: July 25, 2008
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12), [TCDS 3A13](https://openairdocs.org/tcds/3A13), [TCDS 3A17](https://openairdocs.org/tcds/3A17), [TCDS 3A21](https://openairdocs.org/tcds/3A21), [TCDS 3A24](https://openairdocs.org/tcds/3A24), [TCDS 5A6](https://openairdocs.org/tcds/5A6), [TCDS A4CE](https://openairdocs.org/tcds/A4CE)
- Certificate PDF: https://openairdocs.org/files/sha256/7e/fc/7efc09fbdbc7d5ad9d1455d984f59fe78ff924345461120bd440b3f24e1cf065
- Approved model list and other attachments: [SA02411CH AML.pdf](https://openairdocs.org/files/sha256/f0/c3/f0c35638fbc91ba53d4f309d879e77e9e5e2c26689a2c170dc735a99d64fdf20)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AE89070CA7F3ABEE862574BF00680E35.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA02411CH

## ADs that name it (0)

None.

## Approved models (81, first 50)

- Cessna Aircraft Company 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172F ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172G ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172H ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172I ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172K ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172N ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172P ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172Q ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172RG ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175A ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175B ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175C ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 180 ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180A ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180B ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180C ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180D ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180E ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180F ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180G ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180H ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180J ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 180K ([TCDS 5A6](https://openairdocs.org/tcds/5A6))
- Cessna Aircraft Company 182 ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182A ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182B ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182C ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182D ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182E ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182F ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182G ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182H ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182J ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182K ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182P ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182Q ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 182R ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- Cessna Aircraft Company 185 ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185A ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185B ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185C ([TCDS 3A24](https://openairdocs.org/tcds/3A24))

All 81: https://openairdocs.org/stc/SA02411CH/models.md

## 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.

Part * of the * Regulations. *

Installation of the Aero Vent Cabin Ventilation System in accordance with Knots 2U Installation Instructions as listed on AML No.

SA02411CH, issued April 20, 2007, or later FAA approved revisions.

1. The installer must determine whether this design change is compatible with previously approved modifications. 2. A copy of this Certificate and FAA Approved Model List (AML) No. SA02411CH, issued April 20, 2007, or later FAA approved revisions, must be maintained as part of the permanent records for the modified aircraft. 3. The Aero Vent Cabin Ventilation System is to be inspected and maintained in accordance with Knots 2U Installation Instructions as listed on AML No. SA02411CH, issued April 20, 2007, or later FAA approved revisions. 4. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Knots 2U, Ltd.

703 Airport Road Burlington, WI 53105 *(see attached FAA Approved Model Make : * List (AML) No. SA02411CH for list of Model : * Approved airplane models and applicable airworthiness regulations)

Date of application : February 27, 2007

Date of issuance : April 20, 2007

( Signature) Gregory J. Michalik, Sr. Aero. Engineer Airframe & Administrative Branch Chicago Aircraft Certification Office

( Title)

Original signed by:

Gregory J. Michalik

### SA02411CH AML.pdf

**FAA APPROVED MODEL LIST (AML) NO. SA02411CH KNOTS 2U, LTD.**

FOR

INSTALLING AERO VENT CABIN VENTILATION SYSTEM ISSUE DATE: 4/20/07

**ITEM**

**AIRCRAFT**

**AIRCRAFT**

**ORIGINAL TYPE**

**CERTIFICATION BASIS**

**INSTALLATION**

**INSTRUCTIONS**

AFM

AML

**MAKE MODEL CERTIFICATE NUMBER FOR**

**ALTERATION**

**NUMBER**

**REVISION NO. & DATE**

**SUPPLEMENT**

**NUMBER/DATE**

**AMENDMENT DATE**

Page 1 of 1 1 Cessna Aircraft Company 182E, 182F, 182G, 182H, 182J, 182K, 182P (Except S/N 18260826 thru 18262465), 182Q, 182R, R182, T182, TR182 3A13 CAR 3 Installation Manual No. AV1000-M No Revsion Dated 10/16/06 N/A -- 2 Cessna Aircraft Company P206A, P206B A4CE CAR 3 Installation Manual No. AV1000-M No Revsion Dated 10/16/06 N/A -- 3 Cessna Aircraft Company 210, 210-5A (205A), 210A, 210B, 210F, 210G, 210H, 210J, T210F, T210G, T210H, T210J 3A21 CAR 3 Installation Manual No. AV1000-M No Revsion Dated 10/16/06 N/A -- 4 Cessna Aircraft Company 172, 172A, 172B, 172C, 172D, 172E, 172F, 172G, 172H, 172I, 172K, 172L, 172M, 172N, 172P, 172Q 3A12 CAR 3 Installation Manual No. AV2000-M No Revsion Dated 4/25/08 N/A 7/25/08 5 Cessna Aircraft Company 175, 175A, 175B, 175C, 172RG, P172D, R172E, R172F, R172G, R172H, R172J, R172K 3A17 CAR 3 Installation Manual No. AV2000-M No Revsion Dated 4/25/08 N/A 7/25/08 6 Cessna Aircraft Company 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K 5A6 CAR 3 Installation Manual No. AV3000-M No Revsion Dated 4/25/08 N/A 7/25/08 7 Cessna Aircraft Company 182, 182A, 182B, 182C, 182D, 182P (S/N 18260826 thru 18262465) 3A13 CAR 3 Installation Manual No. AV3000-M No Revsion Dated 4/25/08 N/A 7/25/08 8 Cessna Aircraft Company 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F 3A24 CAR 3 Installation Manual No. AV3000-M No Revsion Dated 4/25/08 N/A 8/1/08 9 Cessna Aircraft Company 210-5 (205), 210-5A (205A), 210K, 210L 3A21 CAR 3 Installation Manual No. AV3000-M No Revsion Dated 4/25/08 N/A 7/25/08

FAA APPROVED:

Gregory J. Michalik, Senior Aerospace Engineer Airframe & Administrative Branch Chicago Aircraft Certification Office Reissued: 8/1/08 Amended: 7/25/08

Original signed by:

Gregory J. Michalik

## Every issue (2)

- July 25, 2008: Issued, Current. [certificate](https://openairdocs.org/files/sha256/7e/fc/7efc09fbdbc7d5ad9d1455d984f59fe78ff924345461120bd440b3f24e1cf065), [SA02411CH AML.pdf](https://openairdocs.org/files/sha256/f0/c3/f0c35638fbc91ba53d4f309d879e77e9e5e2c26689a2c170dc735a99d64fdf20)
- April 20, 2007: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/7e/fc/7efc09fbdbc7d5ad9d1455d984f59fe78ff924345461120bd440b3f24e1cf065), [SA02411CH_AML.pdf](https://openairdocs.org/files/sha256/7f/42/7f42ac6c6274ecf0540b165a4f24a42847ebe6dbba38db93f9f8a9488d8321cf)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.