# STC SA4347NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Machen Inc, United States
- Description: Installation of an induction Air Intercooler.
- Applied: March 31, 1988
- Status date: November 1, 1998
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/11/1c/111ceb7fb25c8ad4fec3cd22ed2498e269bf49286529a83665b52302c692918d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6D1790296A63CD9D85256CC2000E3BC3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4347NM

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Beechcraft Corporation S35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

## 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: SA4347NM This certificate issued to: Machen, Inc.

10555 Airport Drive Coeur d'Alene Airport Hayden Lake, ID 83835 Part 3 of the Civil Air Regulations.

Original Product -Type Certificate Number: ЗА15 Make: Beech Model: S35 Description of Type Design Change: Installation of an induction Air Intercooler in accordance with Machen, Inc. Report No, 68-4, dated July 26, 1988, or later FAA approved revision.

NOTE: This modification is approved only when installed in conjunction with STC No. SA762NM.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Beech Model S35 aircraft, Serial Number D7569, Registration Number N3F only. A copy of this Certificate and FAA Approved Airplane Flight Manual Supplement, dated August 23, 1988, must be maintained as part of the permanent records for the modified aircraft.

Date of Application: March 31, 1988 Date Reissued:

Date of Issuance: August 23, 1988 Date Amended: ; November 1, 1998 FEDERAL AVIATION directio nise 2 но.

(Signature) TOMNIS TRATIOR Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- November 1, 1998: Amended, Current. [certificate](https://openairdocs.org/files/sha256/11/1c/111ceb7fb25c8ad4fec3cd22ed2498e269bf49286529a83665b52302c692918d)

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