STC SA1228CE

Supplemental type certificate · Knots 2U Ltd

Holder
Knots 2U Ltd · United States
Status
Current · Reissued
Status date
May 24, 2021
Applied
June 6, 1975
Product
Aircraft · Small Airplane
Certification basis
Part 3, Part 21
Data sheet
TCDS2A13

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of wing tip extension.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may 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 3

Knots2U, Ltd.

Number: SA1228CE 709 Airport Road Burlington, WI 53105

Part 3* of the Civil Air Regulations Original Product – Type Certificate Number: Make: Piper Model:

2A13 PA-28-140, PA-28-150, PA-28-160, PA-28-180

Installation of Wing Tip Extension, Stabilator Tip Extension, and Dorsal F in in accordance with:

1. Drawing List No. 28000, dated July 11, 1975, stamped "FAA Approved" with a date of June 13, 1976, or later FAA approved revision.

FAA Approved Airplane Flight Manual Supplement, dated June 7, 1976, or later FAA approved revision, is required.

Continued on page 3.

Date of Application: June 6, 1975

Date Reissued: May 11, 2016, May 24, 2021

Date of Issuance: June 17, 1976 Date Amended:

Signature

Title Charlene Combs 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 3

To (Name and address of transferee)

From (Name and address of grantor)

SA1228CE

FAA Form 8110-2 (5/14) Page 3 of 3

(Continuation Sheet) Number: SA1228CE

Reissue Date: May 24, 2021

Airworthiness requirements (*continued from page 1):

Effective May 15, 1956, as amended through 3-2 and paragraphs 3.304 and 3.705 of 3-7, effective May 3, 1962.

Limitations and Conditions (continued from page 1):

Eligibility: A) all PA-28-150 and PA-28-160 airplanes B) PA-28-140: the dorsal fin modification is eligible only on those airplanes manufactured with Piper fin fairing P/N 63517-00 C) PA-28-180: eligibility includes Serial Numbers 28-03, 28-1 thru 28-7205318, except for the Dorsal fin modification which is eligible on Serial Numbers 28-1 thru 28-7105244.

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 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.

Parts manufactured under this STC may have been produced without an FAA approved quality control procedure.

Prior to installation, such parts must be inspected for conformity and airworthiness in accordance with FAR's 21 and 43.

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 4

MakeModelData sheet
Piper Aircraft Inc.PA-28-1402A13
Piper Aircraft Inc.PA-28-1502A13
Piper Aircraft Inc.PA-28-1602A13
Piper Aircraft Inc.PA-28-1802A13

Every issue · 2

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
May 24, 2021Reissued, currentCertificate
May 11, 2016Reissued, earlier issueCertificate