What it approves
Vortex generators manufactured IAW Boundry Layer Research Document AA1126 and installed..
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.
Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate
Number SA5921NM
This certificate, issued to BLR Aerospace, LLC 11002 29th Ave. West Everett, WA 98204
Part 3 of the Civil Air Regulations.
Original ProductType Certificate Number: A20SO Make: Piper Model: PA-31-325
Description of the Type Design Change: Vortex generators manufactured in accordance with Document Number AA1126, no revision, dated January 05, 1993, and installed in accordance with Document Number AA1125, no revision, dated January 05, 1993, or later FAA-approved revisions.
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 and Continuation Sheet must be maintained as part of the permanent records for the modified aircraft.
(See Continuation Sheet on Page 3)
Date of application: December 3, 1992 Date reissued: November 23, 2009; August 23, 2018 Date of issuance: January 19, 1993 Date amended:
FAA FORM 8110-2 (5/14) PAGE 1 OF 3 PAGES By direction of the Administrator
(Signature)
Manager, Seattle ACO Branch (Title)
Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet)
Number SA5921NM
BLR Aerospace, LLC Issued: January 19, 1993 Reissued: November 23, 2009; August 23, 2018
This continuation sheet, which is part of STC SA5921NM, prescribes the conditions and limitations under which the product for which the STC was issued meets the standards for airworthiness of the Federal Aviation Regulations.
Operations must be conducted within the limitations of the basic airplane flight manual.
The conditions and limitations of Type Certificate Data Sheet Number A20SO apply except where superseded by the following:
The system consists of eighty-six vortex generators on the wing and vertical tail of the airplane and four strakes (two on each nacelle).
There may be a maximum combined total of four vortex generators missing from the wing and/or vertical tail before replacements must be installed.
- END -
FAA FORM 8110-2 (5/14) PAGE 3 OF 3 PAGES
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| Piper Aircraft Inc. | PA-31-325 | A20SO |
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| August 23, 2018 | Reissued, current | Certificate |
| November 23, 2009 | Reissued, earlier issue | Certificate |