# STC SA1199WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Tundrahawk LLC, United States
- Description: Installation of Continental 0-4 70-A, -J, -K, -L, or -R engine and McCauley 2A34C/90A or 2A36C/90M propellers; or 0-470-A, -J, -K, -L, and Hartzell HC-A2XF-1/8433 or BHCA2XF-1/8433 propellers; or 0-470-R engine and Hartzell BHC-C2Y/8468
- Applied: February 24, 1965
- Status date: June 9, 2015
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-767](https://openairdocs.org/tcds/A-767)
- Certificate PDF: https://openairdocs.org/files/sha256/fa/11/fa11a75d0cb83afc0f6ef902fa35e63095a7e2f7b5229a851d1fd5ae6811d47b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/77516B39FB43340586257E60007B9488.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1199WE

## ADs that name it (0)

None.

## Approved models (2)

- Univair Aircraft Corporation 108-2 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation 108-3 ([TCDS A-767](https://openairdocs.org/tcds/A-767))

## 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 SA1199WE

This certificate, issued to Tundrahawk, LLC 2425 Merrill Field Drive Anchorage, AK 99501

Part 3 of the Civil Air Regulations.

Original ProductType Certificate Number: A-767 Make: Universal (Stinson) Model: 108-2 (Landplane and Seaplane) 108-3 (Landplane and Seaplane)

Description of the Type Design Change: Installation of Continental 0-4 70-A, -J, -K, -L, or -R engine and McCauley 2A34C/90A or 2A36C/90M propellers; or 0-470-A, -J, -K, -L, and Hartzell HC-A2XF-1/8433 or BHCA2XF-1/8433 propellers; or 0-470-R engine and Hartzell BHC-C2Y/8468 in accordance with Assembly and Installation Instructions for PDX Conversion Kit, dated March 24, 1966, revised March 24, 1968, and S. S.

Aviation Master Drawing List 108-001, dated May 30, 1996, or later Federal Aviation Administration (FAA) approved revisions.

NOTE: A dorsal fin per Assembly and Installation Instructions for PDX Dorsal Fin Kit No. 108-2, dated March 15, 1968, or later FAA-approved revision, is required for the 108-2 seaplane only.

NOTE: The Hartzell HC-A2XF-1A/8433-2 propeller is approved except for 0-470-R installations.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this certificate and FAA-approved Airplane Flight Manual Supplement (Landplane and Seaplane) dated July 10, 1980, or later FAA-approved revision, must 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: February 24, 1965 Date reissued: 3/23/94; 6/6/96; 8/1/01; 6/9/15 Date of issuance: April 29, 1966 Date amended: 6/24/68; 1/12/73; 7/13/85; 3/23/94;

6/6/96; 8/1/01

(Signature)

Manager, Seattle Aircraft Certification Office (Title)

## Every issue (2)

- June 9, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/fa/11/fa11a75d0cb83afc0f6ef902fa35e63095a7e2f7b5229a851d1fd5ae6811d47b)
- August 1, 2001: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/b4/d5/b4d587bf0dfb1cf7226d2710dce707fe14829e862b2ef3695419a973d888f793)

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