Request For Information (RFI) Repair of the C-5 Aft Cargo Doors (Left & Right)_1560 Stock Class NSNs

Statement of Objectives (SOO)

This document outlines the objectives for the overhaul of the MC Aft Center Cargo Door, RHS (Part Number: 4F69010-102A). The goal is to return the item to government supply in a fully overhauled condition.

Part A: Teardown and Inspection

• Prepare a Teardown and Inspection Report.
• Inspect the door and sub-assembly drawings per Lockheed Drawing 4F69010.
• Identify part number via data plate, noting any discrepancies or if the item is not a -102A.
• List missing parts and any parts delivered with the carcass that are not part of the subject part number.
• Determine proposed repair methods (repair per technical orders or replacement).
• Evaluate and repair corrosion damage, including plating requirements.
• Record and mark all discrepancies on a discrepancy log sheet and on the part with a red marker.
• Specific instructions are provided regarding honeycomb skin panels, existing temporary repairs, and detailed visual inspections (DVI) per T.O. 1C-5M-3.

Part B: Technical References for Overhaul

• The government will provide a 3D "as-designed" model of the AFT CENTER DOOR, MC MODEL, p/n 4F69010-102A for engineering approval.
• A simplified overhaul manual is to be developed and presented for government approval.
• Lockheed drawing 4F69010-102A and other sub-tier drawings are to be used.
• A quarter inch trim is to be added to exterior/perimeter skins/edges, with specific exceptions.
• Reference is made to numerous Technical Orders (T.O.s) for various aspects of the overhaul, including corrosion control, nondestructive inspection, structural repair, and programmed depot maintenance.
• Repair needs outside of established Technical Order limits must be submitted to AFLCMC/WLSEBA via AFMC Form 202 for engineering disposition.

Part C: First Unit Repair Verification (FURV) Requirements

• Documentation of all repairs and special authorizations.

• Material analysis via vendor certifications.

• Process certifications.

• Supplier Quality inspection report.

• Photo documentation of overhaul data plate and IUID data plate.

• Create an "as-manufactured" 3D model and conduct CAD compare analysis against the "as-designed" model to detect and measure differences. Deviations exceeding 0.1 inches must be reported.

• Reports and documentation are to be submitted per Contract Line Item Requirements (CDRLs) and Performance Work Statement (PWS) sections referenced throughout the document.

• AFMC Form 202 is to be used for reporting defects outside of repairable limits and for engineering disposition.

• Any defects found outside of repairable limits must be reported to the C-5 System Program Office (SPO) Engineering Division.

• Shipping paperwork, crate markings, and inventory tags may be erroneous; the data plate is the authoritative source for part identification.

• Due to design improvements, the government may provide a similar, but different NSN/part number carcass, which the supplier must induct and output the government-required NSN/part number.

• A redesigned Legacy Special Packaging Instruction (SPI) may be provided later.

• The document was last updated on June 3, 2025.

Other / Unclassified

This document is a Request for Information (RFI) to identify potential sources capable of repairing C-5 Aft Cargo Center Doors (Left & Right sides). The government requires repair of one left and one right door, with no additional quantities expected for at least two years. The document specifies the National Stock Numbers (NSNs) for both the left (1560012966316) and right (1560012979975) doors, along with their respective Repair/Maintenance/Sustainment Category (RMC/RMSC) codes (R1/G for left, R2/G for right). It notes that while the RMC/RMSC data suggests competitive repair, the government intends to award a follow-on contract to the existing specialized service provider to avoid delays. Samples are not available, and these doors are installed on only two aircraft. The contractor will be responsible for all materials, support equipment, tools, and services. ES3, Inc. is identified as the known sole source for this effort.

This RFI serves as market research to gauge industry capability for C-5 Aft Cargo Center Door repairs. It includes a Statement of Objectives (SOO) and a Contractor Capability Survey. Interested parties are instructed to provide documentation supporting their capability to meet the requirements. Small businesses are specifically addressed, with guidance on responding and identifying potential set-aside opportunities. The survey requests detailed information on company capabilities, past experience, facilities, equipment, quality assurance, repair processes, and commerciality. Responses are due by a specified date (not provided in the document) and should be submitted via email to the PCO and Rebecca Lopez. Participation in this survey does not guarantee future contract awards, and the government will not reimburse for participation expenses.

Statement of Objectives (SOO)

This document outlines the objectives for the overhaul of the MC Aft Center Cargo Door, LHS, part number 4F69010-101A.

Part A: Teardown and Inspection

• Prepare a Teardown and Inspection Report.
• Inspect the provided carcass against Lockheed Drawing 4F69010 and applicable sub-assembly drawings.
• Positively identify the part number of the provided carcass via photo documentation of the data plate. Notify AFLCMC/WLSEBA if the item is not a -101A.
• List any missing parts required for the -101A.
• List any parts delivered with the carcass that are not part of the subject part number.
• Determine proposed repair methods (repair per technical orders or replacement).
• For damage outside of existing technical order limits, contact AFLCMC/WLSEBA for guidance.
• List defects and repair scenarios, including visual inspection, with specific attention to fasteners, corrosion, wear, and damage.
• Do NOT inspect honeycomb skin panels (these are 100% replacement parts).
• Evaluate and repair corrosion damage and implement corrosion prevention measures.
• Record all discrepancies on a discrepancy log sheet and mark them on the part with a red marker.

Part B: Technical References for Overhaul

• Create and submit a 3D "as-designed" model of the AFT CENTER DOOR, MC MODEL, p/n 4F69010-101A for government engineering approval.
• Develop and present a simplified overhaul manual for government engineering approval.
• Utilize Lockheed drawing 4F69010-101A and other sub-tier drawings.
• Add a quarter inch of trim on all exterior/perimeter skins/edges, except for the inboard-most edge where it meets the RHS Aft Center Cargo door.
• Reference various Technical Orders (T.O.s) for specific procedures, including corrosion control, nondestructive inspection, structural repair, and programmed depot maintenance.
• Submit repair needs outside of Technical Order limits to AFLCMC/WLSEBA for engineering disposition.

Part C: First Unit Repair Verification (FURV) Requirements

• Provide documentation of all repairs and special authorizations.
• Provide material analysis via vendor certifications for new materials.
• Provide process certifications for processes and technicians.
• Submit a Supplier Quality inspection report.
• Provide photo documentation of overhaul and IUID data plates.
• Create an "as-manufactured" 3D model and conduct a CAD compare analysis against the "as-designed" model to detect and measure differences. Deviations exceeding 0.1 inches must be reported.

Not explicitly stated in this document, but implied to be a government supply overhaul.

• Strict adherence to specified drawings and Technical Orders.
• Reporting of defects outside of repairable limits.
• Development of new technical documentation (3D model, overhaul manual).
• Specific requirements for data plates and CAD comparison.
• Potential need to manufacture a new shipping container if the received one is unsuitable for return shipment.
• Requirement to manufacture and install IUID marking if not present.

Statement of Work (SOW) / Performance Work Statement (PWS)

This document outlines the Statement of Objectives (SOO) for the overhaul of the MC Aft Center Cargo Door, RHS (Part Number 4F69010-102A). The objective is to return the item to government supply fully overhauled.

Part A: Teardown and Inspection

• Prepare a Teardown and Inspection Report.
• Inspect per Lockheed Drawing 4F69010 and applicable sub-assembly drawings.
• Positively identify the part number of the provided carcass via photo documentation of the data plate.
• List any missing parts.
• List any parts delivered with the carcass that are not part of the subject part number.
• Determine proposed repairs/methods, including repair per technical orders or replacement.
• List defects and repair scenarios, including visual inspection and detailed visual inspection (DVI) of machined fittings.
• Evaluate and repair corrosion damage, including plating requirements.
• Record and mark all discrepancies.
• Do NOT inspect honeycomb skin panels on the outer mold line (these are 100% replacement parts).
• Pay particular attention to oversized or elongated fastener holes, loose/missing/damaged fasteners, cracks, wear, corrosion, deformation, or peeling finish.
• Avoid removal of machined fittings where possible.
• If the shipping container is unsuitable for return shipment, a new one must be manufactured.
• If IUID marking is not present, it must be manufactured and installed.

Part B: Technical References for Overhaul

• Create and submit a 3D "as-designed" model of the AFT CENTER DOOR, MC MODEL, p/n 4F69010-102A for government engineering approval.
• Develop and present a simplified overhaul manual for government engineering approval.
• Use Lockheed drawing 4F69010-102A and other sub-tier drawings.
• Provide a quarter inch trim on all exterior/perimeter skins/edges, except for the inboard-most edge.
• Reference numerous Technical Orders (T.O.s) for specific procedures, including corrosion control, nondestructive inspection, structural repair, and programmed depot maintenance.
• Submit repair needs outside of Technical Order limits to AFLCMC/WLSEBA via AFMC Form 202 for engineering disposition.

Part C: First Unit Repair Verification (FURV) Requirements

• Documentation of all repairs and special authorizations.
• Material analysis via vendor certifications.
• Process certifications for technicians.
• Supplier Quality inspection report.
• Photo documentation of data plates (overhaul and IUID).
• Create an "as-manufactured" 3D model via laser scan technology and conduct CAD compare analysis.

Not explicitly stated in this document, but implied to be a depot-level overhaul.

• Strict adherence to specified drawings and Technical Orders.

• Reporting of defects outside of repairable limits to the C-5 System Program Office (SPO) Engineering Division.

• Creation of new 3D models and overhaul manuals.

• First Unit Repair Verification (FURV) process including detailed documentation and CAD comparison.

• Any deviations exceeding 0.1 inches in CAD comparison must be reported.

• Shipping paperwork, crate markings, and inventory tags may be erroneous; the data plate is the authoritative source for part number identification.

• The government may provide a carcass of a similar, but different NSN/part number, which the supplier must induct and output the government-required NSN/part number.

• A redesigned Special Packaging Instruction (SPI) is not available at the time of drafting; guidance will be provided when available or via AFMC Form 202.

• The document was last updated on 03June2025.