STC SA2057SO

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to t he design data nor to alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is th e property of the STC holder.

FAA Form 8110-2 (5/14) Page 1 of 3

Number: SA2057SO This certificate issued to: Alpha Aviation Inc.

1500 E. Main Street Owatonna, MN 55060-3188

Part *of the Civil Air Regulations. *See Airplane Specification

Original Product – Type Certificate Number: ATC 660, TC695, Make: Piper A-691, A692 and A698 Model: J-3, J3P, J3L-S, J3L-65 (continued) Description of Type Design:

Installation of shoulder Harness in accordance with Kosola Report KR-534, Drawing List, Revision “A”, dated February 03, 1987, or later FAA approved revisions.

The approval of this change applies basically to the Piper model and series airplanes listed under Model above. This approval should not be extended to other airplanes of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. This determination should include consideration of significant changes in weight distribution such as an increase in the fixed disposal weight in the fuselage.

Date of Application: January 05, 1987 Date Reissued: July 02, 2018 Date of Issuance: February 03, 1987 Date Amended:

Signature Title (for) Christina M. Underwood Manager, Atlanta ACO Branch

Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is th e property of the STC holder.

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

Transfer the ownership of Supplemental Type Certificate Number: SA02553AT

To (Name and address of transferee)

From (Name and address of grantor)

Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is th e property of the STC holder.

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

Model (cont.)

(Army L-4C), J3L-65S, J3F-50, J3F50S, J3F-60, J3F-60S, (Army L-4D), J3F-66, J3F-65S, J3C-40, J3C-50S, (Army L-4, L- 4J) (Navy NE-1, NE-2) J3C-65, J3C-65S, Pall & Palls.

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