# STC SA9077SC-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Honeywell International Inc., United States
- Description: Recore of Normalair-Garrett heat exchanger part number 8534C000.
- Applied: June 11, 1996
- Status date: September 27, 2021
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A53EU](https://openairdocs.org/tcds/A53EU)
- Certificate PDF: https://openairdocs.org/files/sha256/49/1f/491f341c07cfc1de02dafb506a7ad38eb3406523f78ad5a30e6130367e914966
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3CF194FB1A8970D686258767006AD2A3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA9077SC-D

## ADs that name it (0)

None.

## Approved models (6)

- Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR72-101 ([TCDS A53EU](https://openairdocs.org/tcds/A53EU))
- Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR72-102 ([TCDS A53EU](https://openairdocs.org/tcds/A53EU))
- Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR72-201 ([TCDS A53EU](https://openairdocs.org/tcds/A53EU))
- Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR72-202 ([TCDS A53EU](https://openairdocs.org/tcds/A53EU))
- Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR72-211 ([TCDS A53EU](https://openairdocs.org/tcds/A53EU))
- Aerospatiale (Societe Nationale Industrielle Aerospatiale) ATR72-212 ([TCDS A53EU](https://openairdocs.org/tcds/A53EU))

## 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:

SA9077SC-D Honeywell International Inc.

1944 E Sky Harbor Circle N Phoenix, AZ 85034 .

the Federal Aviation Regulations A53EU Make: Original Product Type Certificate Number:

Aerospatiale ATR72-101, ATR72-201, ATR72-102, ATR72-202, ATR72-211, ATR72-212, ATR72-212A Recore of Normalair-Garrett Heat Exchanger Part Number 2340356-1 (NGL P/N 8534C000) and 2340356-3 (NGL P/N 8571C000) in accordance with Honeywell LORI Sealed Drawing List SDL3681-1 Revision D, dated 11 October 2005 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.

June 11, 1996 Date Reissued:

10/11/05; 9/27/21 Date of Issuance: Date Amended:

November 6, 1996 9/17/04; 10/11/05 By Direction of the Administrator Signature:

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

SA9077SC-D

## Every issue (2)

- September 27, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/49/1f/491f341c07cfc1de02dafb506a7ad38eb3406523f78ad5a30e6130367e914966)
- November 6, 1996: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/45/8e/458e5b24b173d9e277b7e2d35202492423c3ddc2bb84d1fabef051a2ddfbba5f)

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