# STC SA375NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ennis, Robert E., United States
- Description: Installation of a Continental O-200-A engine, a McCauley propeller, a 11.3 gallon fuel tank in the right wing, and modified cowling
- Applied: March 4, 1974
- Status date: November 16, 1976
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-751](https://openairdocs.org/tcds/A-751)
- Certificate PDF: https://openairdocs.org/files/sha256/e2/a1/e2a1bccf5ab682367752d61ddfcf05d7fed7b2eaff9967e7eedccf443e958c51
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1F56725C99D80BE486257AD40072850B.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA375NW

## ADs that name it (0)

None.

## Approved models (1)

- National Aeronca Association O-58B (Army L-3B; L-3C) ([TCDS A-751](https://openairdocs.org/tcds/A-751))

## What the certificate says

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

United States of America •STC Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA375Nw This certificate issued to: ROBERT E. ENNIS Part 42 of the Civil Air Regulations:

Original Product -Type Certificate Number: A751 Make: Aeronca Model: L-3B McCauley propeller, a 11.3 gallon fuel tank in the right wing, and modified cowling in accordance with Robert E. Ennis' photographs 1 through 7. Description of Type Design Change: Installation of a Continental 0-200-A engine, a quate on other aircraft. This approval is limited to the installation in Aeronca fimilaliens andbenditions: Data pertaining to this modification are considered inade- L-3B, Serial Number 058B4902 only. A copy of this Certificate and Addendum No.

SA375NW shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: March 4, 1974 Date Reissued:

Tale fisuance: November 16, 1976 Date Amended:

FEDERAL AVIATION By Direction of the Administrator C. 2. Keagen

TOMINIST RATOR Acting Chief, Engineering and Manufacturing Branch ( I itle)

**TAA FORM 8110-2 (10-68)**

nited States of 2lmerica Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) NOV 16 1976. Number SA37 5NW Supplemental Type Certificate ADDENDUM NO. SA375NW The conditions and limitations of Type Certificate Data Sheet Number A751 apply except where superseded by the following:

Supplemental Type Certificate Data Sheet, which is part of STC SA375NW prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Federal Aviation Regulations:

Supplemental Type Certificate HOLDER: Robert E. Ennis I. AERONCA L-3B (LANDPLANE - NORMAL CATEGORY) AS MODIFIED BY STC SA375NW Engine: Continental 0-200-A Fuel: 80/87 octane minimum grade aviation gasoline Engine Limits: 100 HP at 2750 rpm Propeller: McCauley Serial Number Eligible: 058B4902 only Airspeed Limits: Same as specified on Data Sheet A751 Maximum Weight: 1350 pounds Powerplant Instrument Markings: Same as specified on Data Sheet E-252-26 Airspeed Markings: Same as specified on Data Sheet A751 Placards: A placard must be installed on the instrument panel and also at the wing tank to read:

**MAXIMUM CAPACITY OF AUXILIARY WING TANK IS 11.3 GALS. USE IN LEVEL FLIGHT ONLY**

FAA FORM 8110-2-1 (10-69) . PAGE 3 OF3 PAGES c FAA AC 73-2651

## Every issue (1)

- November 16, 1976: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e2/a1/e2a1bccf5ab682367752d61ddfcf05d7fed7b2eaff9967e7eedccf443e958c51)

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