C-5M alternate modification installation (AMI)
Active Indefinite Delivery Contract Awarded Last action
- Contract number
- FA852521D0001
- Awardee
-
Tyonek Services Overhaul Facility-Stennis, LLC UEI L5DVJMYLFP94
- Awarding agency
-
AFLCMC Robins AFB
Lifecycle Management Center, Department of Defense
- Task orders
- 23 $60,109,323 obligated
Award facts
- Opportunity
-
- FA852520R0006 Solicitation number
- Combined order value
-
- $60,109,323 Current, with exercised options
- $60,116,961 Potential, with all options
- Last date to order 67% complete
- IDV ceiling 65% used
- $92,800,000.00
- Award type
- Single award
- Who can order
- Only the awarding agency
- Funding agency
- Air Force Materiel Command Air Force, Department of Defense
- NAICS code
- 336411 Aircraft Manufacturing
- Set-aside
- 8(a) Sole Source
- Competition
- Not Available for Competition · 1 offer Only One Source
- Pricing
- Firm Fixed Price
- Legislative mandates
-
- Service Contract Act FAR subpart 22.10
Award details come from SAM.gov/FPDS.
About this IDV
Air Force Materiel Command awarded an 8(a) sole-source indefinite-delivery contract to Tyonek Services Overhaul Facility-Stennis, LLC, with a ceiling of $92.8 million and an ultimate completion date of September 30, 2029. This is a single-award vehicle. Tyonek Services is an Alaskan Native Corporation-owned, minority-owned small disadvantaged business with SBA 8(a) certification expiring April 17, 2027.
The contract covers C-5M Alternate Modification Installation (AMI) services, including installation of pylon hydraulic check valve kits, EBPR kits, CNS/ATM systems, and core mission computer and color weather radar modifications on C-5M Super Galaxy aircraft. Work is performed at Tyonek's facility in Kiln, Mississippi, with secondary performance locations at Robins Air Force Base, Georgia and Patuxent River, Maryland.
The period of performance runs from the November 9, 2020 award through September 30, 2029. Recent task order activity includes a $1.02 million firm fixed-price order (May 15, 2026) to install pylon hydraulic check valve kits on three C-5M aircraft, completing October 30, 2026; a $4.1 million cost-plus-fixed-fee undefinitized order (September 9, 2025) for EBPR kitting on 52 C-5M aircraft plus spares, completing September 7, 2026; a $1.62 million order (August 28, 2025) for alternative modification installation and maintenance services, completing September 17, 2026; and multiple firm fixed-price orders spanning 2024 and 2025 for CMC/WXR systems and CNS/ATM installations valued between $507,000 and $2.74 million. Leach International Corp (doing business as Esterline Power Systems) has provided relay supply and integration support on recent orders. All delivery orders are issued under 8(a) sole-source or non-set-aside set-asides by Air Force Materiel Command and its subordinate Aeronautical Systems Center.
Task orders
Show all 23
Transactions
| Action | Obligated | Date |
|---|---|---|
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Change Order | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Original award | $0 |
Show all 23
Subawards
| Subcontractor | Amount | Awarded |
|---|---|---|
| Leach International Corp | $3,521,346 | |
| L3Harris Technologies Integrated Systems L.P. | $810,397 | |
| L3Harris Technologies Integrated Systems L.P. | $302,645 | |
| L3Harris Technologies Integrated Systems L.P. | $965,568 |
Quick answers
Who was awarded contract FA852521D0001?
FA852521D0001 was awarded to Tyonek Services Overhaul Facility-Stennis, LLC by AFLCMC Robins AFB (Lifecycle Management Center) on November 9, 2020.
How much is contract FA852521D0001 worth?
Orders under FA852521D0001 have obligated $60,109,323. Their combined current value, with exercised options, is $60,109,323. Their combined potential value, with all options, is $60,116,961. FA852521D0001's own ceiling is $92,800,000.
How many orders have been placed under contract FA852521D0001?
23 orders have been placed under FA852521D0001, the latest on May 15, 2026.
Which agency awarded contract FA852521D0001?
AFLCMC Robins AFB (Lifecycle Management Center) awarded FA852521D0001, with funding from Air Force Materiel Command (Air Force).
Who can order from contract FA852521D0001?
FA852521D0001 is a single award indefinite delivery contract. Only the awarding agency can place orders on it.
Was contract FA852521D0001 competed?
The extent of competition for FA852521D0001 was not available for competition. The government received 1 offer. It was set aside: 8(a) Sole Source.
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