# STC SA813NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ben Browning, United States
- Description: Installation of Beech Duke Model 60 wet wingtips
- Applied: June 19, 1979
- Status date: July 20, 1979
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20)
- Certificate PDF: https://openairdocs.org/files/sha256/3e/67/3e67c15736f5bd1283e5eca9f4338c2cc6198aaffeb9813b12fc921a93a8e1e5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/22FA109137E1370B86257AB000638D53.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA813NW

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Beechcraft Corporation E90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))

## 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: SA813NW This certificate issued to: Ben Browning Part 3 of the CiVil Air Regulations:

Original Product -Type Certificate Number: 3A20 Make: Beech Model: E 90 Description of Type Design Change: Installation of Beech Duke Mode1 60 wet wingtips in accordance with Ben Browning Installation Instructions, Model E90.

Similations and bendilions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Beech E90, Serial Number LW-149 only. A copy of this Certificate, Addendum No. SA813NW, FAA Approved Airplane Flight Manual Supplement, and Ben Browning Installation Instructions shall be maintained as SA813NW The conditions and limitations of Type Certificate Data Sheet Number 3A20 apply except where superseded by the following:

Supplemental Type Certificate Data Sheet, which is part of SIC SA813NW, 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: Ben Browning BEECH E90 (LANDPLANE - NORMAL CATEGORY) AS MODIFIED BY STC SA813NW Fuel: No change from Data Sheet 3A20 Fuel Capacity: Left and Right Auxiliary - 41 gallons each Left and Right Main - 196 gallons each Left and Right Tips - 14 gallons each Total - 502 gallons all tanks Gross Weight: No change from Data Sheet 3A20 C. G. Limits: No change from Data Sheet 3A20 Airspeed Limits: No change from Data Sheet 3A20 Placards: At the fuel fill cap for each wing tip, add the following placard:

FUEL: JP-1, JP-4, OR JP-5 FUEL CAPACITY: 14 US GAL -END-

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

## Every issue (1)

- July 20, 1979: Issued, Current. [certificate](https://openairdocs.org/files/sha256/3e/67/3e67c15736f5bd1283e5eca9f4338c2cc6198aaffeb9813b12fc921a93a8e1e5)

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