# STC SA1579NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Heliarc Welding Service Inc., United States
- Description: Installation of replacement exhaust heat exchanger.
- Applied: March 19, 1984
- Status date: May 22, 1986
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/5f/be/5fbe1ef9a3c3246e1ac6068395feebf1935e30a3bad3c778024b0aae532ebf43
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C2E36C3EE38038E085256CC1008213B0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1579NM

## ADs that name it (0)

None.

## Approved models (8)

- Cessna Aircraft Company T210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210K ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## What the certificate says

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

H1718NMD-S United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1579NM This certificate issued to: Heliarc Welding Service, Inc.

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

Original Product -Iype Certificate Numben:

ЗА21 Cessna T210F, T210H, T210K, T210M T210G, T210J, T210L, T210W Installation of replacement exhaust heat exchanger in accordance with FAA sealed Heliarc Welding Service 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: March 19, 1984 Date Reissued:

Date of Issuance: April 18, 1984 Date Amended: May 22, 1986 FEDERAL AVIATION By Direction of the Administrator Woodford R.

TO MINISTRATO Northwest Mountain Region, Aurora, Colorado Denver Aircraft Certification Office (Title)

**PAA LAB 21 10**

## Every issue (1)

- May 22, 1986: Amended, Current. [certificate](https://openairdocs.org/files/sha256/5f/be/5fbe1ef9a3c3246e1ac6068395feebf1935e30a3bad3c778024b0aae532ebf43)

---
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.