# STC SA3496WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Del-Air, United States
- Description: Installation of Elano P/N 099001-063 muffler in lieu of original Avcon muffler
- Applied: April 14, 1977
- Status date: January 2, 2020
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/9e/c9/9ec9b4104e35847e1b50d7d91e4fe70b3c75a5035452485ba82633725e228952
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FD5C7BAF73F623D38625878E007756E7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3496WE

## ADs that name it (0)

None.

## Approved models (1)

- Textron Aviation Inc. 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

## 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

DEL AIR 2121 S. Wildcat Way Porterville, CA 93257 Part 3* of the Civil Air Regulations dated November 1, 1949, as amended by 3-1 through 3-12 ee Original Product Type Certificate Number :

3A12 Textron Aviation Inc.

172B (Landplane Only, Normal and Utility Categories), N7840X, Serial No. 17248340 Description of Type Design Change: Installation of Elano P/N 099001-063 muffler in lieu of original Avcon Muffler. No installation data required. Avcon Industries, Inc., Lycoming O -360-A1A engine per STC SA807CE is required with this installation.

Data not suitable for reproduction of installation in other aircraft; therefore, they are satisfactory for Cessna 172B (Landplane Only), N7840X, Serial No. 17248340 only. No additional modif ications of this type are to be approved solely by reference to this Supplemental Type Certificate or to the data submitted therefor.

Date of application : April 14, 1977

Date of issuance : September 28, 1977

Date reissued : January 2, 2020

(Signature) Manager, Technical & Administrative Support Section Los Angeles ACO Branch (Title)

## Every issue (2)

- January 2, 2020: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/9e/c9/9ec9b4104e35847e1b50d7d91e4fe70b3c75a5035452485ba82633725e228952)
- September 28, 1977: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/68/66/6866205267ba018a428dafe849ace690f0260cca73ac0acd48715f591c852f68)

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