# STC SR00919DE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Blackhawk Mission Equipment, USA
- Description: Installation of Left and Right Pulse Light
- Applied: August 29, 2019
- Status date: July 22, 2025
- Product: Aircraft, Rotorcraft
- Certification basis: Part 29, Part 21
- Data sheets: [TCDS H3NE](https://openairdocs.org/tcds/H3NE), [TCDS H5NE](https://openairdocs.org/tcds/H5NE), [TCDS R0012DE](https://openairdocs.org/tcds/R0012DE), [TCDS R00052SE](https://openairdocs.org/tcds/R00052SE), [TCDS R00021LA](https://openairdocs.org/tcds/R00021LA), [TCDS R00022LA](https://openairdocs.org/tcds/R00022LA), [TCDS R00020LA](https://openairdocs.org/tcds/R00020LA), [TCDS R00019AT](https://openairdocs.org/tcds/R00019AT), [TCDS R00005RC](https://openairdocs.org/tcds/R00005RC), [TCDS R00020AT](https://openairdocs.org/tcds/R00020AT), [TCDS R00054SE](https://openairdocs.org/tcds/R00054SE), [TCDS R00003AC](https://openairdocs.org/tcds/R00003AC), [TCDS R00025LA](https://openairdocs.org/tcds/R00025LA), [TCDS R00058SE](https://openairdocs.org/tcds/R00058SE), [TCDS R00026LA](https://openairdocs.org/tcds/R00026LA), [TCDS R00023LA](https://openairdocs.org/tcds/R00023LA), [TCDS R00027LA](https://openairdocs.org/tcds/R00027LA), [TCDS R00028LA](https://openairdocs.org/tcds/R00028LA), [TCDS R00035LA](https://openairdocs.org/tcds/R00035LA), [TCDS R00113SE](https://openairdocs.org/tcds/R00113SE)
- Certificate PDF: https://openairdocs.org/files/sha256/13/c2/13c274302b0345d777dd96a76a72b41ae76d360eada062b9870c3a95f82750f5
- Approved model list and other attachments: [SR00919DE_AML.pdf](https://openairdocs.org/files/sha256/18/88/18881ae5d4b47487888e7a351595477c7acdab38773a2d066139c0d8b7ba612a)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179936074020250723150326.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00919DE

## ADs that name it (0)

None.

## Approved models (29)

- ACE Aeronautics LLC UH-60A ([TCDS R00005RC](https://openairdocs.org/tcds/R00005RC))
- Billings Flying Service Inc. UH-60A ([TCDS R00021LA](https://openairdocs.org/tcds/R00021LA))
- Blackhawk Mission Equipment UH-60A ([TCDS R0012DE](https://openairdocs.org/tcds/R0012DE))
- CAPITOL HELICOPTERS INC HH-60L ([TCDS R00026LA](https://openairdocs.org/tcds/R00026LA))
- CAPITOL HELICOPTERS INC UH-60A ([TCDS R00026LA](https://openairdocs.org/tcds/R00026LA))
- Carson Helicopters Inc. UH-60A ([TCDS R00020AT](https://openairdocs.org/tcds/R00020AT))
- Delta Enterprise EH-60A ([TCDS R00019AT](https://openairdocs.org/tcds/R00019AT))
- Delta Enterprise UH-60A ([TCDS R00019AT](https://openairdocs.org/tcds/R00019AT))
- H-60 LLC UH-60A ([TCDS R00113SE](https://openairdocs.org/tcds/R00113SE))
- H-60 LLC UH-60L ([TCDS R00113SE](https://openairdocs.org/tcds/R00113SE))
- Hallux Aerospace LLC UH-60A ([TCDS R00035LA](https://openairdocs.org/tcds/R00035LA))
- Hallux Aerospace LLC UH-60L ([TCDS R00035LA](https://openairdocs.org/tcds/R00035LA))
- Heliqwest International Inc. EH-60A ([TCDS R00028LA](https://openairdocs.org/tcds/R00028LA))
- Heliqwest International Inc. UH-60A ([TCDS R00028LA](https://openairdocs.org/tcds/R00028LA))
- High Performance Helicopters Corp. UH-60A ([TCDS R00054SE](https://openairdocs.org/tcds/R00054SE))
- Northwest Rotorcraft LLC UH-60A ([TCDS R00058SE](https://openairdocs.org/tcds/R00058SE))
- PJ Helicopters Inc UH-60A ([TCDS R00020LA](https://openairdocs.org/tcds/R00020LA))
- Pickering Aviation Inc. EH-60A ([TCDS R00003AC](https://openairdocs.org/tcds/R00003AC))
- Pickering Aviation Inc. UH-60A ([TCDS R00003AC](https://openairdocs.org/tcds/R00003AC))
- Pickering Aviation Inc. UH-60L ([TCDS R00003AC](https://openairdocs.org/tcds/R00003AC))
- Reeder Flying Service Inc. UH-60A ([TCDS R00027LA](https://openairdocs.org/tcds/R00027LA))
- SIXTYHAWK TC LLC EH-60A ([TCDS R00025LA](https://openairdocs.org/tcds/R00025LA))
- SIXTYHAWK TC LLC HH-60L ([TCDS R00025LA](https://openairdocs.org/tcds/R00025LA))
- SIXTYHAWK TC LLC UH-60A ([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))
- Sikorsky Aircraft Corporation S-70C ([TCDS H3NE](https://openairdocs.org/tcds/H3NE))
- Timberline Helicopters Inc. UH-60A ([TCDS R00052SE](https://openairdocs.org/tcds/R00052SE))
- Unical Air 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.

(See Continuation Sheet Page 3 of 3 Pages) SR00919DE Blackhawk Mission Equipment 4125 West Wright Street Boise, ID 83705 29 the Federal Aviation Regulations * UH-60A, S-70C, S-70A

1. The installer is responsible determine whether this design change is compatible with previously approved alterations on an aircraft.

2. If the holder agrees to permit another person to use this certificate to alter an aircraft, the holder must provide the other person written evidence of that permission.

August 29, 2019 November 27, 2019; July 25, 2023 September 18, 2019 for Manager, West Certification Branch * See attached FAA Approved Model List (AML) No. SR00919DE for List of approved rotorcraft models and applicable airworthiness regulations.

Installation of Left and Right Pulse Light is to be done in accordance with Documents:

• BME-004-001, Revision IR, or later FAA approved revision.

• BME-004-101, Revision IR, or later FAA approved revision.

• BME-004-102-1, Revision IR, or· later FAA approved revision.

SR00919DE

End Limitations and Conditions Continued:

SR00919DE

3. A copy of this certificate and Approved Model List must be maintained part of the permanent record of an altered aircraft.

4. Aircraft with this STC installed shall be maintained in accordance with the Instructions for Continued Document BHI-202-107, Revision IR, dated March 30, 2019, or later FAA accepted revision unless other methods, techniques and practices for maintaining this STC have been accepted by the FAA.

5. Aircraft with this STC installed shall be operated in accordance with the RFMS BHI-210-107, Revision IR, FAA approved on September 11, 2019, or later FAA approved revision.

6. In accordance with 21.50, the Instructions for Continued Airworthiness (ICA) are required be made available at installation.

Certification Basis:

Basis on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for this STC is:

a. For parts not altered or not affected by the change, the type certification basis for aircraft(s) is shown on TCDS(s):

Refer to Approved Model List for this STC

b. The certification basis for parts altered or affected by the change since date of application is:

Refer to Approved Model List for this STC

### SR00919DE_AML.pdf

**FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) STC SR00919DE**

FOR INSTALLATION OF PULSATING FORWARD RECOGNITION LED ASSEMBLIES ISSUE DATE: September 18, 2019 Page 1 of 6 

**ITEM AIRCRAFT MAKE AIRCRAFT MODEL**

**ORIGINAL**

**TC NUMBER**

**CERTIFICATION BASIS FOR**

**ALTERATIONS**

**FAA APPROVED**

**DRAWINGS FAA**

APPROVED RFMS AML AMEND DATE 1 Sikorsky Aircraft S-70C H3NE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads Amen d 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 2 Sikorsky Aircraft S-70A H5NE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads Amen d 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 3 Blackhawk Mission Equipment UH-60A R0012DE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads Amen d 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 4 Timberline Helicopters, Inc UH-60A R00052SE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads A mend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19

**FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) STC SR00919DE**

FOR INSTALLATION OF PULSATING FORWARD RECOGNITION LED ASSEMBLIES ISSUE DATE: September 18, 2019 Page 2 of 6 

**ITEM AIRCRAFT MAKE AIRCRAFT MODEL**

**ORIGINAL**

**TC NUMBER**

**CERTIFICATION BASIS FOR**

**ALTERATIONS**

**FAA APPROVED**

**DRAWINGS FAA**

APPROVED RFMS AML AMEND DATE 5 Billings Flying Service, Inc UH-60A R00021LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads Amen d 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 6 Skydance Blackhawk Operations, LLC UH-60A R00022LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads A mend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 7 PJ Helicopters UH-60A R00020LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads A mend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 8 Delta Enterprise EH-60A UH-60A R00019AT 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads A mend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25

**FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) STC SR00919DE**

FOR INSTALLATION OF PULSATING FORWARD RECOGNITION LED ASSEMBLIES ISSUE DATE: September 18, 2019 Page 3 of 6 

**ITEM AIRCRAFT MAKE AIRCRAFT MODEL**

**ORIGINAL**

**TC NUMBER**

**CERTIFICATION BASIS FOR**

**ALTERATIONS**

**FAA APPROVED**

**DRAWINGS FAA**

APPROVED RFMS AML AMEND DATE 9 ACE Aeronautics, LLC UH-60A R0005RC 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 10 Carson Helicopters Inc.

UH-60A R00020AT 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19 11 High Performance Helicopters, Corp UH-60A R00054SE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 9/18/19

**FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) STC SR00919DE**

FOR INSTALLATION OF PULSATING FORWARD RECOGNITION LED ASSEMBLIES ISSUE DATE: September 18, 2019 Page 4 of 6 

**ITEM AIRCRAFT MAKE AIRCRAFT MODEL**

**ORIGINAL**

**TC NUMBER**

**CERTIFICATION BASIS FOR**

**ALTERATIONS**

**FAA APPROVED**

**DRAWINGS FAA**

APPROVED RFMS AML AMEND DATE 12 Pickering Aviation, Inc UH-60A EH-60A UH-60L R00003AC 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 13 Sixtyhawk TC, LC EH-60A UH-60A HH-60L R00025LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 14 Northwest Rotorcraft Inc.

UH-60A R00058SE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25

**FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) STC SR00919DE**

FOR INSTALLATION OF PULSATING FORWARD RECOGNITION LED ASSEMBLIES ISSUE DATE: September 18, 2019 Page 5 of 6 

**ITEM AIRCRAFT MAKE AIRCRAFT MODEL**

**ORIGINAL**

**TC NUMBER**

**CERTIFICATION BASIS FOR**

**ALTERATIONS**

**FAA APPROVED**

**DRAWINGS FAA**

APPROVED RFMS AML AMEND DATE 15 Capital Helicopters Inc. UH-60A HH-60L R00026LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 16 Unical Air Inc. UH-60A R00023LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 17 Reeder Flying Service Inc.

UH-60A R00027LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 18 Heliqwest International Inc.

EH-60A UH-60A R00028LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads

Amend 29-24, effective December 06, 1984

BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25

**FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) STC SR00919DE**

FOR INSTALLATION OF PULSATING FORWARD RECOGNITION LED ASSEMBLIES ISSUE DATE: September 18, 2019 Page 6 of 6 

**ITEM AIRCRAFT MAKE AIRCRAFT MODEL**

**ORIGINAL**

**TC NUMBER**

**CERTIFICATION BASIS FOR**

**ALTERATIONS**

**FAA APPROVED**

**DRAWINGS FAA**

APPROVED RFMS AML AMEND DATE 19 Hallux Aerospace LLC. UH-60A UH-60L R00035LA 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads Amend 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25 20 H-60 LLC. UH-60A UH-60L R00113SE 14 CFR Part 21 § 2 l.25(a)(2) for the special purposes listed in FAR 21.25 (b)(1)(2)(7) as defined below.

(1) § 21.25(b) (1) Agriculture Operations

(2) § 2l.25(b) (2) Forest& Wildlife Conservation (3) § 2l.25(b) (7) External Loads Am end 29-24, effective December 06, 1984 BME-004-001, Rev. IR BME-004-101, Rev. IR BME-004-102-1, Rev.

IR BHI-210-107, Rev. IR FAA Approved 9/11/19 7/22/25  * Or later FAA Approved Revision for Manager, West Certification Branch AME NDED: December 16, 2019; July 22, 2025 REISSUED: July 25, 2023 FAA Approved: __________________________________________

## Every issue (2)

- July 22, 2025: Amended, Current. [certificate](https://openairdocs.org/files/sha256/13/c2/13c274302b0345d777dd96a76a72b41ae76d360eada062b9870c3a95f82750f5), [SR00919DE_AML.pdf](https://openairdocs.org/files/sha256/18/88/18881ae5d4b47487888e7a351595477c7acdab38773a2d066139c0d8b7ba612a)
- July 25, 2023: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/17/b0/17b081ae4ecb20962723ff3070b30a4a814a7e7475a896956fac34380aa38a3d), [SR00919DE_AML.pdf](https://openairdocs.org/files/sha256/bc/ed/bced1447d7081f0ac404d885c91cf02dc61ee67cc98b72f0bdff779ddda13dd5)

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