# STC SA8073SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Honeywell International Inc., United States
- Description: Replace core assembly of AiResearch Reheater Heat Exchanger, Part Number 194274-3 and 194274-4
- Applied: November 8, 1990
- Status date: September 17, 2021
- Product: Aircraft, Large Airplane
- Certification basis: Part 1, Part 21
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM), [TCDS A1NM](https://openairdocs.org/tcds/A1NM)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/be/c7be083ab0e7efa988abc74afc21c13590ff32fe8c845386305534f7b2b8760c
- Approved model list and other attachments: [SA8073SW AML.pdf](https://openairdocs.org/files/sha256/8f/b9/8fb9a4636fffd93a51171319652b3117169a1f8db58423d30df23828f0991cc0)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D9A97A9536EE3A1B862587590040455A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8073SW

## ADs that name it (0)

None.

## Approved models (5)

- The Boeing Company 757-200 Series ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))
- The Boeing Company 757-200CB Series ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))
- The Boeing Company 757-200PF Series ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))
- The Boeing Company 767-200 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))
- The Boeing Company 767-300 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))

## 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate issued to:

SA8073SW Honeywell International Inc.

1944 E Sky Harbor Circle N Phoenix, AZ 85034 .

the * Regulations * See attached FAA Approved Model List (AML) Make: Original Product Type Certificate Number:

Replace core assembly of AiResearch Reheater Heat Exchanger, Part Number 194274-3 and 194274-4 in accordance with LORI Drawing Number 88LB2110, Rev. D, dated June 8, 1993, or later FAA approved revision.

1) Compatibility of this modification with previously installed equipment must be determined by installer.

2) If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

November 8, 1990 Date Reissued:

10/1/96; 11/15/05; 11/14/12; 9/17/21 Date of Issuance: Date Amended:

July 8, 1991 November 9, 1994 Rev. 1 By Direction of the Administrator Signature:

William S. Shealy ODA Administrator, ODA-602216-NM

SA8073SW

### SA8073SW AML.pdf

FAA APPROVED MODEL LIST (AML) STC No. SA8073SW Date of Issuance: July 8, 1991 Date Amended: November 9, 1994 Date of Reissuance: November 14, 2012; September 17, 2021 Honeywell International Inc.

1944 E Sky Harbor Circle N Phoenix, AZ 85034 Item Aircraft Make Aircraft Model Original Type Certificate Number Regulation/ Part 1 Boeing 767-200, 767-300 A1NM FAR 25 2 Boeing 757-200, 757-200PF, 757-200CB A2NM FAR 25 FAA Approved: ______________________________________ William S. Shealy ODA Administrator, ODA-602216-NM Date: September 17, 2021

## Every issue (3)

- September 17, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c7/be/c7be083ab0e7efa988abc74afc21c13590ff32fe8c845386305534f7b2b8760c), [SA8073SW AML.pdf](https://openairdocs.org/files/sha256/8f/b9/8fb9a4636fffd93a51171319652b3117169a1f8db58423d30df23828f0991cc0)
- November 14, 2012: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/88/70/887066d265504f6b5b02438cd99438473d4585ee543b3d6c5fc4ffd4c9c31d90), [AML_SA8073SW.pdf](https://openairdocs.org/files/sha256/1b/8f/1b8fe6befe16f1a1bc1169827dfbff4793e26f629f20731ae35b4b78a0ae8e07)
- November 15, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/a1/67/a1675dd82b2933254e3545d794d7a70b3bb80f7cd4bb2655db6fd77aa1e8d226)

---
From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.