# STC SA1042NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: R&K Aeromotive, United States
- Description: Installation of a Continental engine and a McCauley propeller
- Applied: October 14, 1980
- Status date: January 23, 1981
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/e7/22/e7227ebf0a3e5233c889ec5d4f4abb574d5b41301fd72fe5fc1a3437018d7e04
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0BF0F2A743A0179E86257A3A0056625F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1042NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 170B ([TCDS A-799](https://openairdocs.org/tcds/A-799))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA1042NW This certificate issued to: R & K Aeromotive, Inc.

Purt 3 of the CiVil Air Fregulations.

Criginal Induct - Type bertificate Number: A-799 Make: Cessna Model: 170B Description of Type Design Change: Installation of a Continental 0-300-D engine and icCauley 1C172/EM7651 propeller, with a Cessna 172F spinner in accordance wit R & K Aeromotive, Inc. photographs 1 through 3.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Cessna 170B, Serial Number 27069 only. A copy of this Certificate and Addendum No. SA1042NW shall be maintained as part of the permanent records for the modified aircraft.

SA1042NW The conditions and limitations of Type Certificate Data Sheet Number A-799 apply except where superseded by the following:

Supplemental Type Certificate Data Sheet, which is part of STC SA1042NW, prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Civil Air Regulations.

Supplemental Type Certificate HOLDER: R & K Aeromotive, Inc.

CESSNA 170B (LANDPLANE - NORMAL CATEGORY) AS MODIFIED BY STC SA1042NW Engine: Continental 0-300-D Engine Limits: 145 Hp @ 2700 rpm Fuel: 80/87 aviation gasoline Propeller and McCauley 1C172/EM7651 Propeller Limits: 165 Hp @ 2800 rpm Diameter: 76" maximum; 68" minimum Pitch Setting: 76" maximum; 38" minimum Serial Number Eligible: 27069 only

- END -

**FAA FORM B110-2-1 (10-69) PAGE 3 OF 3PAGES C FAA AC 73-2651**

## Every issue (1)

- January 23, 1981: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e7/22/e7227ebf0a3e5233c889ec5d4f4abb574d5b41301fd72fe5fc1a3437018d7e04)

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