Sources Sought
F138-100 engine sustainment
Department of Defense · Department of the Air Force
AI summaryThe Air Force is doing market research (a sources sought, not a bid) for a follow-on contract to sustain F138-100 engines that power the C-5M aircraft. Work would be at Tinker AFB, Oklahoma, and may include material management, depot-level engine maintenance, engineering and airworthiness support. The Government has not yet decided the contract type, length or whether it will be set aside for small business. More in the summary
Market research, not a bid. Replying is free and tells Department of the Air Force who could do this work. Send a short reply to the contracting contact; no price is needed. See the contact
A newer version of this notice was posted Nov 5, 2026. It moves the due date from Nov 4, 2026 to Nov 19, 2026, which is the date shown on this page. See the latest version.
AI summary Beta
Summary of the version posted Oct 5, 2026. The notice was amended Nov 5, 2026. The due date moved from Nov 4, 2026 to Nov 19, 2026. Check what else changed on SAM.gov.
The Air Force is doing market research (a sources sought, not a bid) for a follow-on contract to sustain F138-100 engines that power the C-5M aircraft. Work would be at Tinker AFB, Oklahoma, and may include material management, depot-level engine maintenance, engineering and airworthiness support. The Government has not yet decided the contract type, length or whether it will be set aside for small business.
Who can bid
- No set-aside decided yet; the Government may use full and open competition or a socioeconomic set-aside
- Capability to support airworthiness requirements and certifications for aircraft engine sustainment
- Small businesses planning to prime under a set-aside should describe how they would meet limitations on subcontracting
How to submit: due Nov 4, 2026 17:00 (UTC-06:00) per the notice header. What to include is under Full summary below. Check the solicitation's instructions on SAM.gov.
Things to watch
- Serious: Heavy engine depot capability needed. Depot-level maintenance, tooling, technical data access and airworthiness certifications are hard for a small shop to show without prior engine sustainment experience.
- Worth checking: Incumbent is Canadian Commercial Corporation. The current contract was competitively awarded to Canadian Commercial Corporation, so a new bidder would compete against an established source.
- Minor: Acquisition strategy undecided. It is unclear whether this will be a small business set-aside, so a small business may end up as a subcontractor.
Read from the notice text only.
Full summary
What they want
- Material management and subcontractor component support
- Engine maintenance and depot-level maintenance and repair, including equipment and tooling
- Maintenance build plans using Reliability Centered Maintenance Plus principles
- Compliance with Technical Order data and Time Compliance Technical Orders
- Engineering investigations, Product Quality Deficiency Reports and analytical condition inspections
- Manage Government-furnished property such as Government-owned parts and equipment
- Maintain airworthiness certifications and integrate peculiar support equipment
- Contract type
- Not decided; the current contract is an indefinite delivery, indefinite-quantity (IDIQ) service contract
- Place of performance
- Tinker AFB, OK, USA
- Estimated value
- Not stated
- Offers due
- Nov 4, 2026 17:00 (UTC-06:00) per the notice header (from the version posted Oct 5, 2026; amended since)
- Page limits
- Concise capabilities statement; no page count stated
What to include when you submit
- Include company name, UEI, CAGE code if available, address and point of contact
- List NAICS codes in your SAM registration and your business size and status for NAICS 336412
- Describe your capability for each scope area and name any you cannot perform
- Describe facilities, tooling, technical data access, quality systems and workforce for F138-100 or similar engines
- Give relevant experience from the past five years (customer, period, work, value, prime or sub role)
- Describe teaming partners or subcontractors, with roles and size status
- Estimate small-business participation as a percentage of total contract value
Current contractor
Current F138-100 Engine Sustainment contract was competitively awarded to Canadian Commercial Corporation
Not in the notice text
- How to submit the capability statement (no email or portal is stated in the text)
- Estimated contract value
- Contract type, length and options for the follow-on
- Whether the work will be set aside
- Evaluation approach
Eligibility and how to respond
- No set-aside. Any business can reply: this is market research, and no bid is being taken yet.
- To respond, send a short reply to the contracting contact near the top of this page. No price is needed.
Notice details
- Posted
- Oct 5, 2026
- Notice type
- Sources Sought
- Office
- FA8124 AFLCMC LPK, Tinker AFB, OK
- Product/service code
- J028 · Maint/Repair/Rebuild of Equipment – Engines, Turbines, and Components
- Business type
- Aircraft, ship & vehicle parts (FedReady's grouping, from NAICS 336412)
- Versions
3 versions have been posted, newest first.
- Nov 5, 2026 · Amendment 0002Due Nov 19, 2026 (changed)
- Oct 5, 2026 · Amendment 0001Due Nov 4, 2026
- Oct 5, 2026 · Sources Sought (this version)Due Nov 4, 2026
- Attachments
Past awards and competition
Who has won work like this before, the likely incumbent, and what similar contracts paid, from USAspending.gov.
Before you respond
Terms on this notice: Sources sought notice
Full notice text from SAM.gov
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