Attachment 1 - AC 1409 Rotor Blade SOW.pdf

16641-25-003

SOW NO. 16641-25-003

7 July 2025

STATEMENT OF WORK

FOR SUPPLY OF

PES ALLIS CHALMERS VA-1409 AXIAL COMPRESSOR

ROTOR BLADES

ARNOLD ENGINEERING DEVELOPMENT COMPLEX

ARNOLD AIR FORCE BASE, TN 37389

DISTRO A

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Distribution Unlimited

IRA-25-0590

DISTRIBUTION STATEMENT A

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IRA-25-0590 Table of Contents - 1

TABLE OF CONTENTS

1. SCOPE

1.1 Scope

1.2 Background

2. APPLICABLE DOCUMENTS

2.1 Government Documents

2.2 Non-Government Documents

3. REQUIREMENTS

3.1 General

3.2 Materials

3.3 Performance Characteristics

3.4 Physical Characteristics

3.5 Workmanship

3.6 Verification, Testing, and Acceptance

3.7 Packaging and Delivery

3.8 Submittals

Appendix A Submittal Procedure

Appendix B Reference Drawings

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IRA-25-0590 Page - 1

1.

1.1

1.2

1.2.1

1.2.2

SCOPE

Scope: The Contractor shall supply complete set of replacement rotor blades for an axial compressor. Delivery shall be to Arnold AFB, TN.

Background: Rotor blades are an integral component of an Allis Chalmers

VA-1409 axial flow compressor. A complete set of rotor blades consist of nine rows of fixed rotor blades with rotor nuts and washers.

Rotor Blades: Nine rows of rotor blades positioned in the inlet and discharge rotor barrels and fixed at defined angular positions with high strength nuts and washers. The rotor blades are stainless steel forgings, heat treated, and precision machined to the dimensions and tolerances specified on the drawings listed in Section 2.

Nuts and Washers: One nut and four washers for each fixed position blade.

2. APPLICABLE DOC`UMENTS

2.1 Government Documents:

2.1.1 AEDC Reference Drawings:

A. FU090017.1M Rev. E Rotor Blade Details (R1, R3, R4).

B. FU090017.2M Rev. E Rotor Blade Details (R2).

C. FU090017.3M Rev. E Rotor Blade Details (R5, R6, R7, R8, R9).

D. FU090017.4M Rev. D Nut and Washer Details Rotor Blades.

2.2 Non-Government Documents:

2.2.1 American Society for Testing and Materials (ASTM):

A. ASTM A275-23 Standard Test Method for Magnetic Particle Examination of Steel Forgings.

B. ASTM A370-24 Standard Test Methods and Definitions for Mechanical Testing of Steel Products.

C. ASTM A473-42 Standard Test Method for Martensitic Stainless- Steel Forgings.

D. ASTM A788/A788M-24 Standard Test Method for Steel Forgings.

E. ASTM E45-23 Standard Test Methods for Determining the Inclusion Content of Steel.

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2.2.2 SAE International:

A. SAE AMS 5622G-24 Aerospace Material Specification for Steel Bars, Forgings and Rings, Corrosion Resistant

B. SAE AMS 5659T-21 Aerospace Material Specification for Steel Bars, Forgings and Rings, Corrosion Resistant.

2.2.3 International Organization for Standardization (ISO):

A. ISO 9001-15 Quality Management Systems-Requirements.

3.

3.1

3.1.1

3.1.2

3.1.3

3.1.4

3.2

3.2.1

REQUIREMENTS

General:

The Contractor shall supply all equipment, labor, materials, and transportation necessary to fabricate, machine, clean, inspect, and deliver complete set of rotor blades to Arnold AFB, TN. Each set consist of 419 rotor blades, 419 rotor blade nuts, and 1676 rotor blade washers in accordance with the drawings in

Section 2.1 and this Statement of Work.

All work shall be accomplished at a facility with current ISO 9001 certification.

All non-destructive testing (NDT) shall be accomplished by a certified Level II

NDT Inspector, with certification in magnetic particle (MT) and ultrasonic (UT) testing.

The Contractor shall notify the Government immediately if a minor non-conformance to the stated requirements arises to determine if Government can accept, before performing re-work.

Materials:

The blades shall be manufactured from one of the following materials:

A. Type 403 Martensitic Stainless-Steel, ASTM A473 and ASTM A788/A788M.

B. PH 15-5 Martensitic Stainless-Steel, AMS 5659 Type 1, Heat Treatment H1150

C. PH 17-4 Martensitic Stainless-Steel, AMS 5622 Type 1, Heat Treatment H1150

3.2.2 The blade material shall meet a cleanliness requirement of 2-12-A when measured in accordance with method B of ASTM E45.

3.2.3 The blade nuts shall be manufactured of carbon or low alloy steel and shall

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IRA-25-0590 Page - 3 exhibit a hardness of 27 38 HRC. All Exterior surfaces of the blade nuts shall have a surface finish of 125 RMS or less unless specified on the drawing.

3.2.4 The blade washers shall be manufactured of carbon or low alloy steel and shall exhibit a hardness of 40 45 HRC.

3.2.5 Material Certification:

A. The Contractor shall submit Certified Material Test Reports for the raw material from the producing mill to the Government for approval prior to forming. The test report shall include the cleanliness requirement specified herein.

B. The Contractor shall submit a certified report of all test and examination results at the time of shipment of each box of blades. The test results shall demonstrate verification of all the physical requirements (and cleanliness measurement) specified herein. The test results for each blade shall be clearly traceable to the individual blades represented. The report shall include the ASTM designation, year date and revision letter (if any).

3.2.6 Material Samples:

A. The Contractor shall provide forging material samples from each heat-treat batch after heat treatment to the Government for approval prior to machining. Each material sample shall be sufficient (2-inch round bar x 12 inches long minimum) to provide two full-size round tensile specimens (ASTM A370, Figure 4) and six full-size Charpy V-notch impact specimens (ASTM A370, Figure11). If the formed blade blanks are not of sufficient size to provide the samples, a separate piece of the raw material may be heat-treated with the blades for testing. Samples shall be identified with the mill heat number and the heat treat batch code. Submit material samples of each heat treat batch to the Government.

3.3 Performance Characteristics:

3.3.1 The Contractor shall provide blades which meet the performance requirements for existing compressors and attach the name plate data as follows:

VA-1409 Axial Flow Turbo Compressor (Design Parameters)

Inlet Volume 280,000 cfm

Pressure Ratio 3.50 (Max)

Inlet Pressure 13.33 psia (Max)

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Inlet Temperature 165 deg. F (Max)

Discharge Pressure 27.20 psia (Max)

Discharge Temperature

500 deg. F (Max)

Speed of Compressor 3,600 rpm

3.4 Physical Characteristics:

3.4.1 The blade materials shall at a minimum exhibit the following physical characteristics:

Ultimate tensile strength 105,000 psi

Yield strength (0.2% offset) 85,000 psi

Elongation in 2 inches 20%

Reduction in area 60%

Impact values (Charpy Notch) 70 deg. F 50 ft-lbs

Impact values (Charpy Notch) -20 deg. F 20 ft-lbs

3.4.2 The blade nut materials shall at a minimum exhibit the following physical characteristics:

Ultimate tensile strength 127,000 psi

Yield strength at 0.2% offset 103,000 psi

HRC 27 - 38

3.4.3 The blade washer materials shall at a minimum exhibit the following physical characteristics:

Ultimate tensile strength 100,000 psi

Yield strength at 0.2% offset 53,000 psi

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HRC 40 - 45

3.4.4 Type: VA 1409 Axial flow Turbo compressor rotor blades. Each set shall include the following:

Number of Row 1 Rotor Blades Forty-One (41)

Number of Row 2 Rotor Blades Forty-One (41)

Number of Row 3 Rotor Blades Forty-One (41)

Number of Row 4 Rotor Blades Forty-One (41)

Number of Row 5 Rotor Blades Fifty-One (51)

Number of Row 6 Rotor Blades Fifty-One (51)

Number of Row 7 Rotor Blades Fifty-One (51)

Number of Row 8 Rotor Blades Fifty-One (51)

Number of Row 9 Rotor Blades Fifty-One (51)

3.5 Workmanship:

3.5.1 All materials to be incorporated into the work shall be of recent manufacture, unused, and in accordance with the requirements of this specification and the applicable material standards.

3.5.2 All blades shall be made from a closed-die forging with grain flow substantially in the longitudinal direction of the blade. If the Contractor wishes to propose a forged bar that has been shot peened as an alternative, the Contractor shall provide sufficient analysis and/or proof that the forged bar meets the specifications herein. However, acceptance of the alternate solution will be at the discretion of the Government.

3.5.3 The Contractor shall thoroughly clean each blade stub shaft threads of all metal shavings and debris to prevent potential for galling with nut at assembly.

3.5.4 The Contractor shall thoroughly clean each nut threads of all metal shavings and debris to prevent potential for galling with blade stub shaft threads at assembly.

3.5.5 The Contractor shall lubricate threads of each nut and threads of each blade stub shaft. Assemble each nut over the full threaded length of each blade stub

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IRA-25-0590 Page - 6 shaft to check for galling.

3.6 Verification, Testing, and Acceptance:

3.6.1 The Contractor shall inspect each blade after final machining using the wet fluorescent magnetic particle method in accordance with ASTM A275. Relevant indications are not acceptable. Submit documentation to the Government.

3.6.2 The Contractor shall inspect each blade nut after final machining using the wet fluorescent magnetic particle method in accordance with ASTM A275. Relevant indications are not acceptable. Submit documentation to the Government.

3.6.3 The Contractor shall perform dimensional inspections on each blade, nut, and washer after final machining. Submit the results to the Government in digital Microsoft Excel spreadsheet format.

3.6.4 The Government reserves the right to witness all testing. The Contractor shall notify the Government two weeks prior to performing machining, tests, and inspections. The Government reserves the right to observe the following

A. Machining process of rotor blades, nuts, and/or washers.

B. Magnetic particle inspection.

C. Dimensional inspection of the fabricated blades.

3.6.5 Final Acceptance Inspections: The Government will perform the following inspections at Arnold AFB, TN prior to final acceptance. Allow up to 60 calendar days for completion of Government inspection and testing prior to final acceptance.

A. Dimensional Inspection of blades from each row to verify conformance with drawing details.

B. Magnetic Particle Inspection of all blades in accordance with ASTM A275, wet fluorescent method.

C. Hardness testing of a representative sample of the nuts and washers in accordance with ASTM A370.

3.7 Packaging and Delivery:

3.7.1 The Contractor shall provide all preservation, packing, and packaging to ensure safe delivery of the items to Arnold AFB, TN. The blades shall be shipped to Arnold AFB, TN in plywood boxes. Each row of blades shall have individual boxes (total of 18 boxes) thick plywood. The interior individual wooden compartments shall be made of

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IRA-25-0590 Page - 7 forklift. Each blade shall be packaged separately in bubble wrap in the compartments within the boxes. One nut and four washers shall be installed on each blade. Finished surfaces shall be adequately protected to prevent marring, scratching, rust, and contamination. The Contractor shall not use Cosmoline as a surface protectant. The Contractor shall provide transportation of all required items to Arnold AFB, TN.

3.7.2 The Contractor shall assume liability for the blades from the time the blades are the blades are received at Arnold AFB, TN. The Government will unload the blades

3.8 Submittals: Submit the following documentation in accordance with Appendix A Submittal Procedure. Refer to Table 1 in Appendix A for the list of submittals.

3.8.1 Submit one year warranty, commencing after Government acceptance, to cover standard warranties, whichever is longer. Acceptance will be provided upon receipt of all submittals and receiving inspection by Government.

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IRA-25-0590 Appendix A - 1

APPENDIX A

SUBMITTAL PROCEDURE

PART 1 GENERAL

1.1 DESCRIPTION OF REQUIREMENTS.

A. This section specifies procedural requirements for non-administrative submittals, including but not limited to shop drawings, product data, s field service reports, samples, operation and maintenance manuals, and other miscellaneous work-related submittals. These submittals are required to amplify, expand, and coordinate other information contained in the contract. This section describes the type and content of submittals that may be required for this work. The required submittals are included in the Statement of Work.

B. Non-work-related submittals are addressed elsewhere in the contract rather than in the specification and may include items such as: contract progress schedule, permits, payment applications, performance and payment bonds, insurance certificates, and progress reports.

C. The Contracting Officer may request submittals in addition to those specified when deemed necessary to adequately describe the work covered in the respective sections of the Statement of Work.

1.2 SUBMITTAL PROCEDURE

A.

the prime Contractor.

B. Listing: At the end of this section is a summarized listing of item submittals requiring approval for the work. The listing is included for the convenience of users of the contract documents. The listing may not be all inclusive and additional item submittals may be required. Within calendar days after receiving contract award, Contractor shall submit a copy of the summarized submittal listing with calendar dates assigned to each item submittal indicating when submittal will be received by the Government. If contract requires a pre-construction conference, Contractor may submit completed submittal listing at the conference.

C. Risk: Do not proceed with the part of the work covered by an item submittal including purchasing, fabricating, and delivering until approval is received.

Machinery, equipment, material, and articles that do not have the required approval shall be installed or used at the risk of subsequent rejection. Any fabrication or other work performed in advance of the receipt of accepted expense.

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IRA-25-0590 Appendix A - 2

D. Transmittal Timing: Coordinate the preparation and processing of item submittals with the performance of the work. Prepare and transmit each item submittal to the Contracting Officer sufficiently in advance of the performance of related work and other applicable activities. Transmit related item submittals for the same unit of work so that processing will not be delayed by the Government's need to review submittals concurrently for coordination. No delay damages or time extensions will be allowed for time lost in late submittals.

E. Content: Each submittal shall be complete and in sufficient detail to allow ready determination of compliance with contract requirements. All submittals which are generic and list more information than is specifically required shall be marked to identify required information. Complete a material approval submittal and attach as cover sheet for each submittal.

Contractor may include multiple item numbers on a material approval submittal.

F. Language: All item submittals shall be written in English, including documents, notes on drawings, sketches, and/or samples, calculations, manuals, and all other instances of written text and communication.

G. Units: All item submittals shall be marked or show dimensions and values in the same units as specified in the contract documents.

H. Review Time: Allow sufficient time so that contract performance will not be delayed as a result of the time required to properly process submittals, including time for re-submittals, if necessary. Allow 30 calendar days for initial Government processing of each submittal. No extension of time will be authorized because of the Contractor's failure to transmit submittals to the Government sufficiently in advance of the work.

I. Contractor Certification: All submittals shall be carefully reviewed by an authorized representative of the Contractor prior to submission to the Government. Each submittal shall be dated, signed, and certified by the Contractor as being correct and in strict conformance with the contract documents. No consideration for review by the Government of any certified by the Contractor. All noncertified submittals will be returned to the Contractor without action taken by the Government, and any delays caused thereby shall be the total responsibility of the Contractor.

J. Deviations: Should any item submittals required by the contract documents show deviations from the contract requirement, the Contractor shall make specific mention of such deviations in the letter of transmittal, including stating cost effects, and product and system limitations which may adversely affect the work, in order that if acceptable, suitable action may be taken for proper adjustment of the contract; otherwise the

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IRA-25-0590 Appendix A - 3

Contractor will not be relieved of the responsibility for executing the work in accordance with the contract documents and the approved submittals.

Contractor shall clearly mark the proposed variation in all documentation and specifically point out deviations from contract requirements in transmittal letters. Failure to point out deviations may result in the Government requiring rejection and removal of such work at no additional cost to the Government. Deviations from contract requirements require Government approval and will only be considered when advantageous to the Government. When proposing deviations, deliver written request to the Contracting Officer, with documentation of the nature and features of the deviation and why the deviation is desirable and beneficial to the Government. If lower cost is a benefit, include an estimate of the cost savings. In addition to documentation required for deviation, include the submittal information required for the item. Allow an additional 14 calendar days beyond normal submittal review period for consideration by the Government of submittals with deviations.

K. Approved Submittals: The part of the work covered by the approved item submittal may proceed provided it complies with the requirements of the contract documents. Final acceptance will depend upon that compliance.

at there is no exception taken to the submittal. Approval of the item submittal shall not be construed as a complete check and indicates only that the general method or other information appears to meet the contract requirements. Approval does not relieve the Contractor of the responsibility for any error which may exist.

After item submittals have been approved by the Contracting Officer, no resubmittal for the purpose of substituting materials or equipment, or changes to any other information will be considered unless accompanied by an explanation of why a substitution or change is necessary.

L. Disapproved Submittals: Contractor shall correct disapproved item submittals and resubmit for approval within timeframe noted. If no date is given, Contractor shall submit corrected submittal within 14 calendar days.

If the Contractor considers any correction or notation on the returned submittal to constitute a change to the Contract Drawings, Specification or Statement of Work the Contractor shall notify the Contracting Officer.

M. Responsibility: The review of Contractor submittals shall not relieve the Contractor of the entire responsibility for the correctness of details and dimensions and conformance to the specifications. The Contractor shall assume all responsibility and risk for any mistakes and/or costs due to any errors in submittals.

N. Inconsistencies: If a conflict or inconsistency arises between an approved item submittal and the contract documents, the contract documents shall govern.

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IRA-25-0590 Appendix A - 4

1.3 SPECIFIC SUBMITTAL DESCRIPTIONS AND REQUIREMENTS: Submittal requirements for individual units of work are specified in the applicable specification section or Statement of Work (SOW). Except as otherwise indicated in the individual specification sections or SOW, comply with the following requirements for each type of submittal.

A. Shop Drawings: These are technical drawings and data specially prepared for this contract including fabrication and installation drawings, setting, and seaming diagrams, and coordination drawings (for use on-site). Shop drawings include drawings, diagrams and schedules specifically prepared to illustrate some portion of the work, diagrams and instructions from a manufacturer or fabricator for use in producing the product and as aids to the Contractor for integrating the product or system into the project, or drawings prepared by or for the Contractor to show how multiple systems and interdisciplinary work will be coordinated. Information required on shop drawings includes dimensions, identification of specific products and materials which are included in the work, compliance with specified standards, and notations of coordination requirements with other work.

Provide special notations of dimensions that have been established by field measurements. Highlight, encircle, or otherwise indicate deviations from the contract documents on the shop drawings. Furnish one hard copy and one electronic copy in AutoCAD version 2020 or earlier drawing file format (.dwg). The only permissible text font is ROMANS. Custom fonts and shapes are prohibited. The minimum allowable font size shall be 0.125-inch. The maximum allowable font size shall be 0.25-inch.

B. Product Data: This data includes standard printed information on manufactured products that has not been specially prepared for this contract, including manufacturers' product specifications illustrating size, physical appearance and other characteristics of materials, installation instructions, standard color charts, catalog cuts, illustrations, schedules, standard wiring diagrams, standard product operating and maintenance manuals, and samples of warranty language when the contract requires extended product warranties. General information required specifically as product data includes manufacturers' standard printed recommendations for application and use, compliance with recognized standards of trade associations and testing agencies, the application of their labels and seals (if any), special notation of dimensions which have been verified by way of field measurement, and special coordination requirements for interfacing the material, product, or system with other work. Furnish three hard copies and one electronic copy.

C. Samples: These are physical examples of work, including, swatches showing color, texture, and pattern, color-range sets, and units of work to be used for independent inspection and testing. Samples include fabricated or unfabricated physical examples of materials, equipment or workmanship

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IRA-25-0590 Appendix A - 5

D. that illustrate functional and aesthetic characteristics of a material or product and establish standards by which the work can be judged, color samples from the standard line (or custom color samples if specified) to be used in selecting or approving colors for the project, and field samples and mock-ups constructed on the project site to establish standards by which the ensuring work can be judged. This includes assemblies or portions of assemblies which are to be incorporated into the project and those which will be removed at conclusion of the work. Submit samples for the Contracting Officer's visual review of general kind, color, pattern, and texture for a final check of the coordination of these characteristics with other related elements of the work and for quality control comparison of these characteristics between the final sample submittal and the actual work as it is delivered and installed. Submit one each.

E. Design Data: Design data includes design calculations, mix designs, analyses or other data pertaining to a part of work. Refer to individual sections of the Specification or Statement of Work for required quantities, formats, and signatures or certifications required. Furnish three hard copies and one electronic copy.

F. Test Plans and Reports: Test plans shall include planned testing, including a description of the test, equipment and supplies needed, and step-by-step notation of test activities and tasks. Test reports include reports signed by an authorized official of a testing laboratory that a material, product, or system identical to the material, product or system to be provided has been tested in accordance with the specified requirements. Testing shall have been within three years of date of contract award for the project. Reports also include findings of tests required to be performed by the Contractor on an actual portion of the work or prototype prepared for the project before shipment to the job site, findings of tests made at the job site or on a sample taken from the job site, investigation reports, daily logs and checklists, and final acceptance test and operational test procedures.

Furnish three hard copies and one electronic copy of each such report required.

G.

letterhead and signed by the responsible officials of the manufacturer of a product, system or material attesting that the product, system, or material meets specification requirements. Certificates include documentation required of the Contractor, or of a manufacturer, supplier, installer, or subcontractor through the Contractor, to further demonstrate the quality of orderly progressions of a portion of the work by documenting procedures, acceptability of methods or personnel qualifications. Examples include confined space entry permits, and text of posted operating instructions.

Certificates shall be dated after award of the project contract and clearly name the project. Furnish three hard copies and one electronic copy of

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IRA-25-0590 Appendix A - 6 each certificate required.

describing installation of a product, system or material, including special notices and Material Safety Data sheets concerning impedances, hazards and safety precautions. Furnish three hard copies and one electronic copy.

H. Field Reports: Documentation of the testing and in the vicinity of the job site, or on a sample taken from the job site, on a portion of the work, during or after installation, to confirm compliance with andards or instructions. The documentation shall be signed by an authorized official of a testing laboratory or agency and shall state the test results, and indicate whether the material, product, or system has passed or failed the test. Furnish three hard copies and one electronic copy.

I. Operation and Maintenance Data: Data furnished by the manufacturer, or the system provider, to the equipment operating and maintenance necessary to maintain and install the equipment, and needed by operating and maintenance personnel for the safe and efficient operation, maintenance, and repair of the item. The data is intended to be incorporated in an operations and maintenance manual or control system.

Furnish two hard copies and one electronic copy.

J. Final Design Drawings and Documentation: Final design documentation including drawings, specifications, estimates, and other required deliverables. Electronic documentation submitted shall include every associated component file of drawings and other documentation, including raster images, jpeg, tiff, Excel, and any related items required to view, modify, or manipulate the electronic files. Furnish a CD-ROM of all final design documentation, and drawings in AutoCAD 2020 version or earlier drawing file format (.dwg), to the Contracting Officer for approval prior to applying for final payment. The drawings shall be fully editable using AutoCAD software. In addition, drawings shall be delivered to clearly show the location and arrangement of all materials and equipment. The only permissible text font is ROMANS. Custom fonts and shape files are prohibited. The minimum allowable font size shall be 0.125-inch. The maximum allowable font size shall be 0.25-inch.

K. Record (As-Built) Drawings: Record drawings showing final configuration of work accomplished. Show all changes, additions, and deviations from the original contract drawings and documentation. If no changes occur, furnish certification to that effect. Drawings shall be redlined electronic drawings, unless waived by the Government, and shall accurately show as-built conditions during the progress of the job. Furnish drawings on a CD-ROM, in AutoCAD 2020 or earlier version, including every associated component file of the drawings, including raster images, jpeg, tiff, Excel, Approved for Public Release: Distribution Unlimited

IRA-25-0590 Appendix A - 7 and any related

L. items required to view, modify, or manipulate the electronic files. Submit to the Contracting Officer for approval prior to applying for final payment.

M. Miscellaneous Submittals: These are work-related, non-administrative submittals that do not fit in the previous categories, including the following:

1. Maintenance agreements. Furnish one hard copy and one electronic copy.

2. Survey data and reports. Furnish one hard copy and one electronic copy.

3. Project photographs. Furnish both hard copies and digital files.

4. Keys and other security protection devices.

5. Maintenance tools, spare parts, and overrun or maintenance stock. Refer to individual sections of the specification for required quantities of spare parts, extra and overrun stock, maintenance tools and devices, keys, and similar physical units to be submitted.

6. Qualification certificates. Furnish one hard copy and one electronic copy.

7. Employee training certificates and documentation showing successful completion of training.

8. Documentation of percentage of recovered material content used during contract.

9. Contractor safety and work plans and schedules.

10. Warranties.

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IRA-25-0590 Appendix A - 8

Table 1 Required Submittal List

No.

Section

Reference Submittal Description Date

1 3.1.2 ISO Certification Due within 1 week of contract award

2 3.1.3 Level II NDT Certification Prior to inspection

3 3.1.4 Non-Conformance At time of findings

4 3.2.5 A Certified Material Test Reports Prior to forming

5 3.2.5 B Certified Tests and Examination Report

Time of shipment

6 3.2.6 A Material Samples 2 weeks after receiving heat treat

7 3.6.1 NDT Inspection Results (Blades) 2 weeks after inspection is complete

8 3.6.2 NDT Inspection Results (Nuts) 2 weeks after inspection is complete

9 3.6.3 Blade Dimensional Report Within 7 days of shipment

10 3.6.4 Machining, Test, and Inspection Dates

2 weeks prior to machining, testing, and inspection

11 3.8.1 Warranty With delivery

Appendix A para 1.2B

Summarized submittal listing with delivery dates

14 days after contract award

END OF APPENDIX A

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IRA-25-0590 Appendix B - 1

APPENDIX B

REFERENCE DRAWINGS

FU090017.1M Rev. E Rotor Blade Details (R1, R3, R4).

FU090017.2M Rev. E Rotor Blade Details (R2).

FU090017.3M Rev. E Rotor Blade Details (R5, R6, R7, R8, R9).

FU090017.4M Rev. D Nut and Washer Details Rotor Blades.

END OF APPENDIX B AND SOW

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CUIIRA-25-0590 DISTRIBUTION STATEMENT A

Drawing Approved Electronically

RELEASED FOR EXECUTION

03/03/2017

Appendix B - 1

IRA-25-0590 DISTRIBUTION STATEMENT A

Drawing Approved Electronically

RELEASED FOR EXECUTION

Appendix B - 2

Drawing Approved Electronically

RELEASED FOR EXECUTION

Appendix B - 3

Drawing Approved Electronically

RELEASED FOR EXECUTION

04/09/2019

Appendix B - 4