# STC SR02657SE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Simplex Manufacturing Company, United States
- Description: Installation of Model 370i Fire Attack System
- Applied: December 29, 2019
- Status date: October 6, 2021
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS R00005RC](https://openairdocs.org/tcds/R00005RC), [TCDS R0012DE](https://openairdocs.org/tcds/R0012DE), [TCDS R00021LA](https://openairdocs.org/tcds/R00021LA), [TCDS R00020AT](https://openairdocs.org/tcds/R00020AT), [TCDS R00054SE](https://openairdocs.org/tcds/R00054SE), [TCDS R00003AC](https://openairdocs.org/tcds/R00003AC), [TCDS R00020LA](https://openairdocs.org/tcds/R00020LA), [TCDS H5NE](https://openairdocs.org/tcds/H5NE), [TCDS R00025LA](https://openairdocs.org/tcds/R00025LA), [TCDS R00022LA](https://openairdocs.org/tcds/R00022LA), [TCDS R00052SE](https://openairdocs.org/tcds/R00052SE), [TCDS R00023LA](https://openairdocs.org/tcds/R00023LA)
- Certificate PDF: https://openairdocs.org/files/sha256/a2/e4/a2e4ad1f99c483a373d5798f2b02d5e802e3e5c3ffff41e29e13987f3a0b21eb
- Approved model list and other attachments: [AML SR02657SE.pdf](https://openairdocs.org/files/sha256/5f/51/5f516ec9966c0bc5b674efbe0af1fc36d0272cfd9ed810a9252dd1743991040d)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5F15576CAA24A2588625876C0057EAE4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR02657SE

## ADs that name it (0)

None.

## Approved models (13)

- ACE Aeronautics LLC UH-60A ([TCDS R00005RC](https://openairdocs.org/tcds/R00005RC))
- BHI H60 Helicopters LLC BHI H60 (UH-60A) ([TCDS R0012DE](https://openairdocs.org/tcds/R0012DE))
- Billings Flying Service Inc UH-60A ([TCDS R00021LA](https://openairdocs.org/tcds/R00021LA))
- Carson Helicopters Inc. UH-60A ([TCDS R00020AT](https://openairdocs.org/tcds/R00020AT))
- High Performance Helicopters Corp. UH-60A ([TCDS R00054SE](https://openairdocs.org/tcds/R00054SE))
- PJ Helicopters Inc UH-60A ([TCDS R00020LA](https://openairdocs.org/tcds/R00020LA))
- Pickering Aviation Inc. EH-60A ([TCDS R00003AC](https://openairdocs.org/tcds/R00003AC))
- SIXTYHAWK TC LLC EH-60A ([TCDS R00025LA](https://openairdocs.org/tcds/R00025LA))
- SIXTYHAWK TC LLC HH-60L ([TCDS R00025LA](https://openairdocs.org/tcds/R00025LA))
- SKYDANCE BLACKHAWK OPERATIONS LLC UH-60A ([TCDS R00022LA](https://openairdocs.org/tcds/R00022LA))
- Sikorsky Aircraft Corporation S-70A ([TCDS H5NE](https://openairdocs.org/tcds/H5NE))
- Timberline Helicopters Inc. UH-60A ([TCDS R00052SE](https://openairdocs.org/tcds/R00052SE))
- Unical Aviation Inc. UH-60A ([TCDS R00023LA](https://openairdocs.org/tcds/R00023LA))

## 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:

SR02657SE Simplex Manufacturing Company 13340 NE Whitaker Way Portland, OR 97230 .

* * See attached FAA Approved Model List (AML) SR02657SE for approved aircraft models and applicable airworthiness regulations Installation of Model 370i Fire Attack System with Optional Model 570 SkyCannon in accordance with Installation Manual 370-102001-001, Revision E, dated August 2, 2021, or later Federal Aviation Administration (FAA) approved revision.

Manufactured in accordance with Master Drawing List MDL370i as listed on the AML. Maintained in accordance with the Instructions for Continued Airworthiness (ICA) 370-102005-001, Revision D, dated August 6, 2021, or later FAA-accepted revision. Operated in accordance with the Rotorcraft Flight Manual Supplement (RFMS) 370-102003-001 as listed on the AML.

Approval of this change in type design applies to the rotorcraft listed on AML SR02657SE only.

This approval should not be extended to other rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer (See Continuation Sheet Page 3 of 3 Pages)

December 29, 2017 Date Reissued:

September 6, 2019 10/17/19; 10/6/21 By Direction of the Administrator Signature:

For Acting Manager, Seattle ACO Branch

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ 3

SR02657SE

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ 3

SR02657SE Limitations and Conditions (cont):

that the relationship between this change and other previously approved modifications will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this certificate, AML SR02657SE, ICA and RFMS must be maintained as part of the permanent records for the modified aircraft.

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.

End

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of 3 ___ 3

### AML SR02657SE.pdf

FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR02657SE FOR MODEL 370i FIRE ATTACK SYSTEM with OPTIONAL MODEL 570 SKYCANNON ISSUE DATE: October 17, 2019

Page 1 of 2

**ITEM AIRCRAFT /**

**ROTORCRAFT MAKE**

**AIRCRAFT /**

**ROTORCRAFT MODEL**

**ORIGINAL TC NUMBER**

**CERTIFICATION**

**BASIS FOR**

**ALTERATION**

**FAA APPROVED**

**AIRCRAFT /**

**ROTORCRAFT FLIGHT**

**MANUAL SUPPLEMENT**

**FAA APPROVED**

**MASTER DRAWING LIST**

AML REV DATE Number Revision* Drawing Revision*

1. Timberline Helicopters, Inc.

UH-60A R00052SE CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

2. ACE Aeronautics, LLC UH-60A R00005RC CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

3. BHI H60 Helicopters, LLC UH-60A R0012DE CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

4. Carson Helicopters UH-60A R00020AT CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

5. PJ Helicopters Inc.

UH-60A R00020LA CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

6. Billings Flying Service Inc.

UH-60A R00021LA CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

7. Skydance Blackhawk Operations, LLC UH-60A R00022LA CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

8. High Performance Helicopters Corp UH-60A R00054SE CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

9. Unical Aviation, Inc.

UH-60A R00023LA CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

10. Sixtyhawk TC, LLC EH-60A/HH- 60L R00025LA CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

11. Pickering Aviation, Inc.

EH-60A R00003AC CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

12. Sikorsky Aircraft Corporation S-70A H5NE CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021

13. Delta Enterprise UH-60A R00019AT CFR 29 370- 102003-001 D 10/05/2021 MDL370i H 08/02/2021 10/06/2021 * Or later FAA Approved Revision

FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR02657SE FOR MODEL 370i FIRE ATTACK SYSTEM with OPTIONAL MODEL 570 SKYCANNON ISSUE DATE: October 17, 2019

Page 2 of 2

FAA Approved:

For Acting Manager, Seattle ACO Branch AMENDED: September 15, 2020; October 6, 2021 REISSUED: April 14, 2022

## Every issue (4)

- October 6, 2021: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a2/e4/a2e4ad1f99c483a373d5798f2b02d5e802e3e5c3ffff41e29e13987f3a0b21eb), [AML SR02657SE.pdf](https://openairdocs.org/files/sha256/5f/51/5f516ec9966c0bc5b674efbe0af1fc36d0272cfd9ed810a9252dd1743991040d)
- September 15, 2020: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/7f/47/7f470fda53b610637768ab7a9517ab6a3838f494fbfeb583fd9d0f2faae0c157), [SR02657SE_AML.pdf](https://openairdocs.org/files/sha256/9e/bb/9ebb68e6575f3e82f8ade5a7bef9de7ac04bb7919e884b7078696611e6ace6af)
- October 17, 2019: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/7f/47/7f470fda53b610637768ab7a9517ab6a3838f494fbfeb583fd9d0f2faae0c157), [SR02657SE_AML.pdf](https://openairdocs.org/files/sha256/6f/69/6f69b25c0c28cdeb89c4a51f1c74b3e0b9396fefb761311416b4c9fb6d99aee8)
- September 6, 2019: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/7f/47/7f470fda53b610637768ab7a9517ab6a3838f494fbfeb583fd9d0f2faae0c157)

---
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.
