# STC SA1594NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Heliarc Welding Service Inc., United States
- Description: Installation of replacement exhaust heat exchanger.
- Applied: July 16, 1984
- Status date: May 22, 1986
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A16CE](https://openairdocs.org/tcds/A16CE)
- Certificate PDF: https://openairdocs.org/files/sha256/e4/06/e4060385b3a965136d577220f3532f88687aa5fd463dc6e00db2abb0928e141f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/36164CC2D551FAF285256CC100821407.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1594NM

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company T207 ([TCDS A16CE](https://openairdocs.org/tcds/A16CE))
- Cessna Aircraft Company T207A ([TCDS A16CE](https://openairdocs.org/tcds/A16CE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

AIT18NMD-S United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1594 1M This certificate issued to: Heliarc Welding Service, Inc.

P. O. Box 38509 3965 Newport Street Denver, Colorado 80238 Purt 3 of the CiVIl Air Regulations.

Original Product - Type Certificate Numben: A16 CE Make: Cessna Model: T207, T207A Description of Type Design Change:

Installation of replacement exhaust heat exchanger in accordance with FAA sealed Heliarc Welding Service, Inc. Drawing List Number 3, revised April 11, 1986; FAA approved May 22, 1986; or later FAA approved revision.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modification will introduce no adverse effect upon the airworthiness of the airplane.

Date of Application: July 16, 1984 Date Reissued:

Date of Issuance: October 30, 1984 Date Amended: May 22, 1986 FEDERAL AVIATION By Direction of the Administrator Manager TMINISTRAIO Denver Aircraft Certification Office Northwest Mountain Region, Aurora, Colorado (Title)

47.

## Every issue (1)

- May 22, 1986: Amended, Current. [certificate](https://openairdocs.org/files/sha256/e4/06/e4060385b3a965136d577220f3532f88687aa5fd463dc6e00db2abb0928e141f)

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