What it approves
Installation of vortex generators on wings and vertical tail.
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 Number SA5101NM
This certificate, issued to: D’Shannon Products, Ltd.
1309 County Road 134 Buffalo, MN 55313
Part 3 of the Civil Air Regulations.
Original Product -- Type Certificate Number: 3A25 Make: Cessna Model: 335, 340, and 340A
Description of the Type Design Change: Installation of vortex generators on wings and vertical tail in accordance with Drawing List DL-110, dated November 5, 1990, or latter FAA approved revision.
Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate, dated December 7, 1990, and Flight Manual Supplement dated November 18, 1991, must be maintained as part of the permanent records for the modified aircraft.
Date of application: October 25, 1990 Date reissued: November 22, 2011, June 14, 2012 Date of issuance: December 7, 1990 Date amended: November 18, 1991
Timothy Smyth
(Signature) Timothy Smyth Manager, Propulsion Branch Chicago Aircraft Certification Office
(Title)
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 3
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| June 14, 2012 | Reissued, current | Certificate |
| November 18, 1991 | Amended, earlier issue | Certificate |