STC SA839NW

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA859NM This certificate issued to: Rodney Engeman Certifies that the change in the type design for the following product with tho limitations and conditions therefor sa specified hoven meets the aimevothinessequirements of Part 3 ofthe CIViI Aix Regulations.

Original Product -Type Fortificate Number: A-767 Make: Univair (Stinson) Model: 108-3 Description of Type Design Change: Installation of a Lycoming 0-540-A1A5 engine, a Hartzell HC-A2XK/8433-2 propeller, a ¼" thick windshield, and an internal fishing pole rack; with or without Edo 248-2440 floats in accordance with Rodney Engeman photographs 1 through 5.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Univair (Stinson) 108-3, Serial Number 4346 only. A copy of this Certificate and Addendum Number SA839NW shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: JULY 20, 1979 Diate misded:

Septembex 27, 1979 Date Amended:

EDERAL AVIATION Pry directim of'the Ildministraton (Signat s) OMINISTRAT Chief, Engineering and Manufacturing Branch (Title)

FAA FOR 8110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) September 27, 1079 Number SA339N41 Supplemental Type Certificate ADDENDUM NO. SA839NW The conditions and limitations of Type Certificate Data Sheet Number A 767 apply except where superseded by the following;

Supplemental Type Certificate Data Shect, which is part of SIC SA839NW, prescribes the conditions and limitations under which the product for which the SIC was issued meets the airworthiness requirements of the Civil Air Regulations:

Supplemental Type Certificate HOLDER: Rodney Engeman UNIVAIR (STINSON) 108-3 (LANDPLANE AND SEAPLANE, NORMAL CATEGORY) AS MODIFIED BY SIC SA839NW Engine: Lycoming 0-540-A1A5 Engine Limits: 250 Hp @ 2575 rpm takeoff and maximum continuous Fuel: 91/96 or 100/130 aviation gasoline Propeller: Landplane and Seaplane:

Hartzell HC-A2XK/8433-2 Floats: Edo 248-2440 Serial Number Eligible: 4346 only Placard: CLIMB POWER FOR COOLING PURPOSES LANDPLANE: 2575 RPM @ 25" 90 MPH CLIMB SPEED SEAPLANE: 2500 RPM @ 25" 95 MPH CLIMB SPEED

FAA FORM 8110-2-1 (10-69) PAGE 3 OF 3 PAGES C FAA AC 73-2051