STC SA620NE

FAA Form 8110-2(10-68) Page 1 of 1 IMPORT Number SA620NE This certificate issued to Viking Air Limited Victoria International Airport 9574 Hempden Road Sidney B.C. Canada V8L 5V5

Part 3 of the Civil Air Regulations.

Original Product -- Type Certificate Number: A-806 Make: de Havilland Inc.

Model: DHC-2 Mk. III

Installation of a Pratt & Whitney PT6A-27, PT6A-15AG or PT6A-34 Turboprop Engine to be done in accordance with Viking Air Limited Master Document Index (MDI) VT2MK1607, Issue 1, dated September 19, 2003, Transport Canada approved November 20, 2003, or later Transport Canada approved revisions. Eligible engine, propeller and governor configurations are specified in the Approved Powerplant Configurations table per the continuation sheet.

1. DHC-2 MK III aircraft shall conform to the following deHavilland Canada modifications prior to the incorporation of this STC:

T2/2035 (Engine control modifications for PT6A-20 engine installation) SOO/2054 or T2/2057 (Installation of PT6A-20 engine) T2/2056 (Dual ignition system – PT6A-20 engine)

Date of application: April 13, 1987

Date of issuance: November 10, 1988 Date reissued:

Date amended: June 25, 1998, March 22, 2005

( Signature) Vito A. Pulera Manager New York Aircraft Certification Office

(Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

Number SA620NE Issue Date: November 10, 1988 Amendment Date: March 22, 2005

Continuation Sheet – 2 – Limitations and Conditions {cont’d}:

2. Viking Air Ltd. Flight Manual Supplem ent for PT6A-27/-15AG, 550 SHP, #VT2E1020-23 Issue 7, dated September 20, 2003, Transport Canada approved November 20, 2003, or later Transport Canada approved revision; or

Viking Air Ltd. Flight Manual Supplem ent for PT6A-27/-15AG, 680 SHP, #VT2E1020-24 Issue 1, dated September 20l 2003, Transport Canada approved November 20, 2003, or later Transport Canada approved revision; or

Viking Air Ltd. Flight Manual Suppl ement for PT6A-34, 680 SHP, #VT2E1020-25 Issue 1, dated September 20, 2003, Transport Canada approved November 20, 2003, or later Transport Canada approved revision.

3. Viking Air Ltd. Maintenance Manual S upplement #VT2E1020-22, Revision 3, dated September 19, 2003, or later Transport Canada accepted revision is required for this installation.

4. Compatibility of this design change with previously approved modifications must be determined by the installer.

5. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Power Rating (SHP)

DOT Approved Flight Manual Supplement

Pratt & Whitney Canada Engine Models

Hartzell Propeller Model (Hub & Blades)

Governors (Applicable to all Propellers)

VT2E1022-23 Issue #7, dated 19 September 2003

PT6A-27 Or PT6A-15AG

HC-B3TN-3(B)(Y) Hub with T10173C+1 Blades

Woodward p/n 210628, reset RPM to 70% Np

VT2E1022-24 Issue #1, dated 19 September 2003

PT6A-27 Or PT6A-15AG

HC-B3TN-3(B)(Y) Hub with T10173C+1 Blades Or HC-B3TN-3(D)(Y) Hub with T10282(N)(B,K) Blades

Woodward p/n 210628, reset RPM to 70% Np

VT2E1022-25 Issue #1, dated 19 September 2003

PT6A-34

HC-B3TN-3(B)(Y) Hub with T10173C+1 Blades Or HC-B3TN-3(D)(Y) Hub with T10282(N)(B,K) Blades

Woodward p/n 210628, reset RPM to 70% Np