# STC SA357NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Pacific Propeller International LLC, United States
- Description: Installation of EAC-22D30-403/ AG-200-4S propeller on Pratt & Whitney R-985 series (450 HP- Item 301) engines.
- Applied: July 1, 1976
- Status date: March 25, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-806](https://openairdocs.org/tcds/A-806)
- Certificate PDF: https://openairdocs.org/files/sha256/70/da/70da0d925ba74d57f1f4ce88e2d9b3d00b1e2e6b45eba466b566f5dacf8d53a5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D947B424DC89877D86256E7B005424CD.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA357NW

## ADs that name it (0)

None.

## Approved models (1)

- de Havilland Inc. (Canada) DHC-2 (L-20A) MK.I ([TCDS A-806](https://openairdocs.org/tcds/A-806))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Number SA357NW This certificate, issued to: Pacific Propeller International LLC 5802 South 228th Street Kent, WA 98032-1810 Part 10 of theCivil Air Regulations,(equivalent to CAR 3, effective November 13, 1945.

Original ProductType Certificate Number: A-806 Make: DeHavilland Model: DHC-2 Mk. I

Description of the Type Design Change: Installation of an EAC-22D30-403/AG-200-4S propeller on Pratt & Whitney R-985 Series (450 HP-Item 301) engines in accordance with Pacific Propeller, Inc., Installation Instructions No. 1004.

NOTE: No change was deemed necessary to DeHavilland Flight Manual PSM 1-2-1A as the result of this change.

Limitations and Conditions: This approval is limited to the installation in the DeHavilland Model DHC-2 Mk. I only for landplane, skiplane, floatplane, and amphibian configurations as identified for items 201, 202, and 101 respectively under aircraft specifications No. A-806. 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 interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

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.

Date of application: July 1, 1976 Date reissued: March 25, 2004 Date of issuance: September 13, 1976 Date amended: March 25, 2004

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

**FAA FORM 8110-2(10-68**

## Every issue (1)

- March 25, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/70/da/70da0d925ba74d57f1f4ce88e2d9b3d00b1e2e6b45eba466b566f5dacf8d53a5)

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