# STC SA2490SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Knots 2U Ltd, United States
- Description: Installation of wing tip extension and dorsal fin.
- Applied: July 14, 1977
- Status date: May 24, 2021
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/c2/c7c2873394c14eccfbef45980fcdf97c44afe1bc8455b8c961d94173bcc4d192
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E17569A6212810D8625870300190EFF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2490SW

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-28R-180 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- Piper Aircraft Inc. PA-28R-200 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))

## 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (5/14) Page 1 of 2

Knots2U, Ltd.

Number: SA2490SW 709 Airport Road Burlington, WI 53105

Part 3 of the Civil Air Regulations.

Original Product – Type Certificate Number: Make: Piper Model:

2A13 PA-28R-180, PA-28R-200

Installation of Wing Tip Extension and Dorsal F in. Required data:

1. Drawing No. 28300, dated May 26, 1977, or Drawing List No. 28300DL, Rev C, dated March 31, 1993, or later FAA approved revision; and

2. FAA Approved Airplane Flight Manual Supplement, dated August 17, 1977, or later FAA approved revision.

Compatibility of this modification with other previously approved modifications, must be determined by the installer.

Model S/N Eligibility: PA-28R-200: 28R-35001 thru 28R-7135329.

Date of Application: July 14, 1977

Date Reissued: October 6, 1977, May 11, 2016, May 24, 2021

Date of Issuance: August 17, 1977 Date Amended:

Signature Charlene Combs Title Program Manager Wichita ACO Branch

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (5/14) Page 2 of 2

To (Name and address of transferee)

From (Name and address of grantor)

SA2490SW

## Every issue (2)

- May 24, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c7/c2/c7c2873394c14eccfbef45980fcdf97c44afe1bc8455b8c961d94173bcc4d192)
- May 11, 2016: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/3a/a3/3aa3dabf7830ed1292600c1c52577a780fc7a532ee84a853bf2e47163b93f783)

---
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.