STC SA709GL

Number: SA709GL

Possession on this Supplemental 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. An STC holder who allows a person to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120).

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 1 of 3 This certificate issued to:

Part 10 of the Civil Air Regulations

Original Product Type Certificate Number: A-806

Description of Type Design Change: Installation of Hartzell HC-B3R30-4, -4A, -4B/R10152- 1/2 propeller, C-4 governor, and spinner as shown below on page 3 on P&W R-985 series engines (with 4 1/2 and 9th order crankshaft vibration dampers) in accordance with Wipaire Hartzell Propeller Installation Instructions W-DHC-04 Rev. F, dated September October 1, 2021 or later FAA approved revision

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the othe r person written evidence of that permission.

(Limitations and conditions continued on page 3.)

1700 Henry Avenue Fleming Field South St Paul, MN 55075 Make: Viking Air Limited

Model: DHC-2 Mk.I (Landplane, Skiplane, and Floatplane) By Direction of the Administrator

Signature

Title: For Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service

(Continuation Sheet) Number: SA709GL

Possession on this Supplemental 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. An STC holder who allows a person to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120).

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 2 of 3

(Continuation Sheet) Number: SA709GL

Possession on this Supplemental 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. An STC holder who allows a person to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120).

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 3 of 3

3. Propeller and propeller limits:

Hartzell 3 blade propeller:

Hub model: HC-B3R30-4, -4A, -4B Blade Model: R10152-5 1/2 Diameter: 95 1/2” No cutoff permitted

Pitch Settings at 30’’ sta.: 38.1o High 15o low

4. See Propeller Type Certificate Data Sheet P28EA Note 9:

Above hub/blade combination is approved vibration wise only for P&WA R-985 engine models with one 4 1/2 order and one 9th order crankshaft damper.

5. Governor: Hartzell C-4

6. Spinner: Spinner P/N as listed by Wipaire Hartzell Propeller Installation Instructions W-DHC- 04 Rev. F, dated September October 1, 2021 or later FAA approved revision.

Note: Spinner installation is mandatory.

7. A copy of this certificate shall be maintained as part of the permanent records for the modified aircraft.

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