# STC SA8645SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Douglas Mueller, United States
- Description: Installation of extended exhaust pipes.
- Applied: March 4, 1993
- Status date: December 23, 2019
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/c4/47/c4474c1ddc254b88dbfa828393182d0247ed924e6082010bac10fbd42bec3001
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/839A9AA966F4C679862584E00056B3CF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8645SW

## ADs that name it (0)

None.

## Approved models (3)

- The Cessna Aircraft Company 170 ([TCDS A-799](https://openairdocs.org/tcds/A-799))
- The Cessna Aircraft Company 170A ([TCDS A-799](https://openairdocs.org/tcds/A-799))
- The Cessna Aircraft Company 170B ([TCDS A-799](https://openairdocs.org/tcds/A-799))

## 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.

Number SA8645SW

FAA Form 8110-2 (5/14) Page 1 of 2 This certificate issued to:

Douglas Mueller 1646 Riviera Court Boulder City, Nevada 89005 Part 3 of the Civil Air Regulations.

Original Product - Type Certificate Number: A-799 Make: Textron Aviation, Inc. (Previous holder: Cessna) Model: 170, 170A, 170B

Installation of extended exhaust pipes in accordance with John Benham Parts List Document number PL-1001-001 Revision C dated March 07, 1993, or later FAA approved revision.

1. Compatibility of this design with previously approved modifications must be determined by the installer.

Date of Application: March 04, 1993 Date reissued: November 14, 2008;

August 30, 2011; March 28, 2019;

December 23, 2019

Date of Issuance: June 02, 1993 Date amended:

Anthony Pigott for Signature Nicholas Faust

Acting Manager, Boston ACO Branch Title

FAA Form 8110-2 (5/14) Page 2 of 2

To (Name and address of transferee) Name:

Address (Number and Street, City, State, and ZIP Code):

From (Name and address of grantor) Name:

Address (Number and Street, City, State, and ZIP Code):

## Every issue (3)

- December 23, 2019: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c4/47/c4474c1ddc254b88dbfa828393182d0247ed924e6082010bac10fbd42bec3001)
- March 28, 2019: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/91/4d/914d5a3fe8b57a82b8654408a927eb934b147f7a70ed58a973cb1458df581192)
- August 30, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/7d/46/7d46cd1aaf622d9e73e5ecfa1e6cb8f337414d0f990b16f1dd9d0446f2a5e3fc)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.