# STC SA3020WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: D'Shannon Products Ltd., United States
- Description: Installation of exhaust silencers in accordance with Top Banana Installation Instructions dated March 12, 1975, Revision of October 22, 1975.

Silencer is manufactured in accordance with Top Banana Drawing No. 2-12-A35 G  change.
- Applied: February 5, 1975
- Status date: July 14, 2011
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/d9/0b/d90b4e3ddf2c987c1ff06ec7252d2dfd4db996d2319614f6299384b098617f1c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/49F1DCC3317F15C6862578EF0055E302.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3020WE

## ADs that name it (0)

None.

## Approved models (9)

- Hawker Beechcraft Corporation 35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation 35R ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation A35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation B35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation C35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation D35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation E35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation F35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Hawker Beechcraft Corporation G35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))

## 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.

This certificate issued to

Part 3* of the Civil Air Regulations.

*effective 11/13/45.

Installation of exhaust silencers in accordance with Top Banana Installation Instructions dated March 12, 1975, Revision of October 22, 1975.

Silencer is manufactured in accordance with Top Banana Drawing No. 2-12-A35 “G” change.

The approval of this change in type design applies basically to Beech 35, A35, B35, C35, D35, E35, F35, G 35, 35R 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 by the installer that the interrelationship between this change and any of those other previously approved modification will introduce no adverse effect upon the airworthiness of that aircraft.

D’Shannon Products, Ltd.

1309 County Road 134 Buffalo, MN 55313 A-777 Make : Beech Model : 35, A35, B35, C35, D35, E35, F35, G35, 35R Date of application : February 5, 1975

Date of issuance : April 11, 1975

Date reissued : May 9, 1975; January 20, 1976; February 9, 1976;

April 4, 2011; July 14, 2011

Date amended : May 9, 1975; November 10, 1975

( Signature) Melvin D. Taylor Manager Atlanta Aircraft Certification Office

( Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

## Every issue (2)

- July 14, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d9/0b/d90b4e3ddf2c987c1ff06ec7252d2dfd4db996d2319614f6299384b098617f1c)
- April 4, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/b2/32/b2323b336fab1aab40055a7383e4cbc700e375e474929dfae63e63af477ca5ec)

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