# STC SA37NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Farmin & Brown, United States
- Description: Installation of a Continental O-200-A engine, a McCauley propeller and a Whelan strobe light
- Applied: March 5, 1973
- Status date: April 9, 1973
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-759](https://openairdocs.org/tcds/A-759)
- Certificate PDF: https://openairdocs.org/files/sha256/22/cd/22cd5b8e7edfb3de7a21362d6bc2ea0207990467481dc0f13c681cdc923e91a3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D2086FAC5F23A3586257AE10065BAFA.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA37NW

## ADs that name it (0)

None.

## Approved models (1)

- American Champion Aircraft Corp. 7FC ([TCDS A-759](https://openairdocs.org/tcds/A-759))

## 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: SA37N0 This certificate issued to: FARMIN & BROWN Certifies that the change in the type design for the fillwing freduct with the limitations and conditions therefor as specified hereen meets the wirerrthiness requirements f Parla and 3f the Civil Air Regulations Original Product - Type bertificate Number: A759 Make: Champion (Aeronca) Mertel: TFC Description of Type Design Change:

Installation of a Continental 0-200-A engine, a McCauley propeller and a Whelan strobe light on a Champion 7FC aircraft (N7556B). McCauley propeller is model 1B90-CM71-43. The strobe light is a model SA and is mounted on top of the rudder on hinge line.

Data not suitable for reproduction in other aircraft; therefore, they are satisfactory for Champion 7FC on a one-only airplane basis for Serial No. 58.

Date of Application: 5 March 1973 Dute reisud:

Date of Issuance: . 9 April 1973 Date Amended:

FEDERAL AVIATION By directivn of the Administrater Acting Chief, Engineering and Manufacturing Branch (Signature )

OMINISTRASIO (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3787 Supplemental Type Certificate ADDENDUM NO. SAB/NW The conditions and limitations of the original specification apply except as follows:

This Addendum, which is part of Supplemental Type Certificate No. SA37NW, prescribes conditions and limitations under which the STC was issued and meets the airworthiness requirements of Part 4a and 3 of the Civil Air Regulations. A copy of this Addendum shall be maintained as part of the modified aircraft permanent records.

Supplemental Type Certificate HOLDER: FARMIN & BROWN I. MODEL 7FC CHAMPION (LANDPLANE - NORMAL CATEGORY) AS MODIFIED BY STC SA37NW Engine: Continental 0-200-A 80/87 Minimum Grade Aviation Gasoline Engine Units: 100 hp. @ 2750 rpm - Sea Level Propeller and Limits: McCauley 1B90-CM71-43 Diameter:

Static RPM: 2400 Limitation: None C. G. Range: 10.2" to 17.2" @ 1190# -on to 17:2m @ 14504 Maximum Weight: 1450# Datum: Wing Leading Edge Oil Capacity: 5 quarts Instrument Markings: Oil Temp: 225°F (Red Line) Oil Pressure: 30-60 psi SERIAL NUMBERS ELIGIBLE:

No. 58 only REQUIRED EQUIPMENT: Strobe light shall be installed in accordance with Farmin/Brown Strobe Light Installation Drawing Sheet 1 of 2 dated 3-5-73.

In addition, this installation will require the top of wing lift struts and aft face of propeller to be painted dull black.

NOTE 1. Current weight and balance report including list of equipment in the certified empty weight must be in the aircraft.

**FAA FORM 8110-2-1 (10-69)**

**PAGE OF PAGES FAA AC 72-4435**

## Every issue (1)

- April 9, 1973: Issued, Current. [certificate](https://openairdocs.org/files/sha256/22/cd/22cd5b8e7edfb3de7a21362d6bc2ea0207990467481dc0f13c681cdc923e91a3)

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