# STC SA4057WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aero Fabricators Co, United States
- Description: Installation of a muffler and exhaust heat exchanger.
- Status date: September 11, 2007
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A19](https://openairdocs.org/tcds/3A19)
- Certificate PDF: https://openairdocs.org/files/sha256/80/cf/80cf58e5a23163b9e110b683d051dfddccdd3c6050a39447872a801e350a7cd6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DD619CC141C615EA8625737D006664FE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4057WE

## ADs that name it (0)

None.

## Approved models (2)

- The Cessna Aircraft Company 152 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- The Cessna Aircraft Company A152 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))

## 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 Aero Fabricators, Inc.

1216 North Road Lyons, WI 53148

Part 3 of the Civil Air Regulations (See Type Certificate Data Sheet No. 3A19 for complete Certification Basis.)

Original Product--Type Certificate Number : 3A19 Make : Cessna Model :

152, A152 Description of Type Design Change:

Installation of muffler and exhaust heat exchanger in accordance with the FAA sealed Aero Fabricators, Inc., Drawing List No. 1-1000 dated June 15, 2007, and Installation Instructions AF-100 Revision A, dated June 15, 2007 or later FAA approved revisions.

1. The installer must determine whether this design is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

Date of application : April 11, 1979

Date reissued : March 22,1996, June 7, 1996, April 22, 1997 Date of issuance : June 16, 1980 Date amended : September 11, 2007 By direction of the Administrator

( Signature) Mary Ellen A. Schutt Manager, Airframe & Administrative Branch Chicago Aircraft Certification Office

(Title)

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

Number

## Every issue (1)

- September 11, 2007: Amended, Current. [certificate](https://openairdocs.org/files/sha256/80/cf/80cf58e5a23163b9e110b683d051dfddccdd3c6050a39447872a801e350a7cd6)

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