# STC SA9083SC-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Honeywell International Inc., United States
- Description: Replace core assembly of Janitrol Constant Speed Drive (CSD) oil cooler, part number 76D94-1, on 747 aircraft equipped with General Electric CF6-50 engines, in accordance with Honeywell LORI Sealed Drawing List SDL3524-1, Revision A, dated 11 October 2005 or later FAA approved revision.
- Applied: July 30, 2001
- Status date: October 1, 2021
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/b1/91/b1919d715dd3d58ed2d8426b33469fd69513bbba0a0209fcbe2ad3a6a787931f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/22D851AF88D2984A8625876C0059448C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA9083SC-D

## ADs that name it (0)

None.

## Approved models (5)

- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200C Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747SR Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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:

SA9083SC-D Honeywell International Inc.

1944 E Sky Harbor Circle N Phoenix, AZ 85034 .

the Federal Aviation Regulations A20WE Make: Original Product Type Certificate Number:

Boeing 747-200B, -200F, -200C, 747SR, -300 Replace core assembly of Janitrol Constant Speed Drive (CSD) oil cooler, part number 76D94-1, on 747 aircraft equipped with General Electric CF6-50 engines, in accordance with Honeywell LORI Sealed Drawing List SDL3524-1, Revision A, 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.

July 30, 2001 Date Reissued:

October 11, 2005; October 1, 2021 Date of Issuance: Date Amended:

September 27, 2001 October 11, 2005 By Direction of the Administrator Signature:

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

SA9083SC-D

## Every issue (2)

- October 1, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b1/91/b1919d715dd3d58ed2d8426b33469fd69513bbba0a0209fcbe2ad3a6a787931f)
- October 11, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/02/b9/02b9cc1772e349e35e8472b4f2e62bb9b6e521e3b1f1f05f41d27ce68f83bd41)

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