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AwardedFind a Tender · award

714928467 - AESAS 2026 - Provision of Aircraft Engineering Support and Airfield Services at Royal Naval Air Stations Yeovilton and Culdrose

Buyer: Ministry of Defence →

BuyerMinistry of Defence
StatusAwarded
DeadlineNot published
ValueValue not published
Published2 Apr 2026

What is being bought

The Royal Navy, part of the UK Ministry of Defence, intends to award a 1 + 1 year contract to Serco for the Air Engineering Support and Airfield Services (AESAS). As a covered procurement, this procurement falls to be regulated under the provisions of the Procurement Act 2023. In the circumstances, the authority may award this public contract directly in accordance with section 41 of the Procurement Act 2023. The applicable direct award justification is that set out in paragraph 7 of Schedule 5 of the Act. This justification applies because the AESAS contract concerns the supply of services by the existing supplier which are intended as an extension to existing services in circumstances where: a change in supplier would result in the contracting authority receiving services that are different from, or incompatible with, the existing services. Namely, a different supplier would lack Serco’s (i) deeply embedded operational expertise and established relationships at Yeovilton and Culdrose, and (ii) suitably trained and experienced staff. And b. the difference or incompatibility would result in disproportionate technical difficulties in operation and/or maintenance. In particular, the difference in service provided by a different supplier would result in: i. unacceptable risks to performance and safety resulting from the need to rebuild critical trust and operational knowledge; ii. the contracting authority needing to invest additional resources in order to retrain staff, modify existing systems, and/or purchase additional equipment; iii. a risk to the continued readiness and support to MCT aircraft, which is critical to national defence; iv. significant adjustments to the Contractor’s Quality Management System, resulting in operational inefficiencies and increased costs; v. disruption to coordination and maintenance of ground support and equipment provision at RNAS Yeovilton; and vi. increase in lead times in returning airframes to flying operations at RNAS Culdrose and reduction in overall numbers of available aircraft in the forward fleet.

Lot details

Lot 1

No lot description published.

Statuscomplete

Comparable-procurement analytics

No usable CPV category has been published, so a comparable market set cannot yet be built.

Procurement strategy & market signals

Framework agreementNot published
Dynamic purchasing systemNot published
Competitive procurementNot published
Recurring requirementNot published
Procurement method rationaleThe Royal Navy, part of the UK Ministry of Defence, intends to award a 1 + 1 year contract with a value of £13,267,000 to Serco for the Air Engineering Support and Airfield Services (AESAS). As a covered procurement, this procurement falls to be regulated under the provisions of the Procurement Act 2023. In the circumstances, the authority may award this public contract directly in accordance with section 41 of the Procurement Act 2023. The applicable direct award justification is that set out in paragraph 7 of Schedule 5 of the Act. This justification applies because the AESAS contract concerns the supply of services by the existing supplier which are intended as an extension to existing services in circumstances where: a change in supplier would result in the contracting authority receiving services that are different from, or incompatible with, the existing services. Namely, a different supplier would lack Serco’s (i) deeply embedded operational expertise and established relationships at Yeovilton and Culdrose, and (ii) suitably trained and experienced staff. And b. the difference or incompatibility would result in disproportionate technical difficulties in operation and/or maintenance. In particular, the difference in service provided by a different supplier would result in: unacceptable risks to performance and safety resulting from the need to rebuild critical trust and operational knowledge; the contracting authority needing to invest additional resources in order to retrain staff, modify existing systems, and/or purchase additional equipment; a risk to the continued readiness and support to MCT aircraft, which is critical to national defence; significant adjustments to the Contractor’s Quality Management System, resulting in operational inefficiencies and increased costs; disruption to coordination and maintenance of ground support and equipment provision at RNAS Yeovilton; and increase in lead times in returning airframes to flying operations at RNAS Culdrose and reduction in overall numbers of available aircraft in the forward fleet.
Rationale classificationssingleSuppliersUniqueWorkArtPerformance, singleSuppliersTechnicalReasons
Special regimedefenceSecurity
Covered byNot published
Submission policyNot published
Selection criteriaNot published
Risk detailsNot published

Planning & early market engagement

BudgetNot published
No-engagement rationaleNot published
Planning documents0
Planning milestones0

No planning milestones published.

Related procurements

No linked framework, prior procurement or reprocurement published.

Awards

Contracts

2

Statusactive
Value£14,879,505

Documents & submission route

  • Not published

Source data inventory

Diagnostic view. “Not published” means this current release does not provide a value.

OCIDocds-h6vhtk-051cd9
Latest release ID030821-2026
Latest release timestampThu Apr 02 2026 11:09:14 GMT+0000 (Coordinated Universal Time)
Sourcefind-a-tender
Official notice URLNot published
Tender statuscomplete
Procurement methoddirect
Procurement method detailsDirect award
Main procurement categoryNot published
Above thresholdNot published
Legal basis2023/54
Tender period: startNot published
Tender period: endNot published
Expression of interest deadlineNot published
Enquiry deadlineNot published
Award period: startNot published
Award period: endNot published
Submission method detailsNot published
Submission languagesNot published
Electronic catalogue policyNot published
Total tender valueNot published
Tender lots in source1
Tender items in source0
Tender documents in source1
Awards in latest release1
Contracts in latest release1
Parties in latest release2

Notice history

DateEventReference
2 Apr 2026award, contract030821-2026
23 Mar 2026award, contract026320-2026
16 Sept 2025award, contract056981-2025
22 May 2025planning024551-2025

All source data

Unmodified official OCDS data retained by Tenderline for this procurement process.

Complete current OCDS release JSON
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Complete JSON history (4 releases)
2 Apr 2026 · 030821-2026 · award, contract
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      "awardID": "2",
      "options": {
        "description": "Second year is optional."
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      "renewal": {
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          "id": "A-14280",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14280",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14281",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14281",
          "format": "application/pdf",
          "documentType": "contractSigned"
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        {
          "id": "A-14282",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14282",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14283",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14283",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14284",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14284",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14285",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14285",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14286",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14286",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14287",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14287",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14288",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14288",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
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          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14289",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
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          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14290",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
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          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14291",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
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          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14292",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
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          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14293",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "A-14294",
          "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14294",
          "format": "application/pdf",
          "documentType": "contractSigned"
        },
        {
          "id": "030821-2026",
          "url": "https://www.find-tender.service.gov.uk/Notice/030821-2026",
          "format": "text/html",
          "noticeType": "UK7",
          "description": "Contract details notice on Find a Tender",
          "documentType": "contractNotice",
          "datePublished": "2026-04-02T12:09:14+01:00"
        }
      ],
      "dateSigned": "2026-03-31T00:00:00+01:00",
      "hasOptions": true,
      "hasRenewal": true,
      "agreedMetrics": [
        {
          "id": "1",
          "title": "Safety",
          "description": "Have there been any investigations, resulting in findings of culpability against the Contractor's personnel that could have resulted in significant damage?",
          "observations": [
            {
              "id": "frequency",
              "period": {
                "durationInMonths": 12
              }
            }
          ]
        },
        {
          "id": "2",
          "title": "Off Aircraft Engineering",
          "description": "The Contractor shall deliver all scheduled work, services, and outputs on time and in full, in accordance with the agreed scope, specifications, and deadlines. Any deviation must be pre-approved via the Change Control process.",
          "observations": [
            {
              "id": "frequency",
              "period": {
                "durationInMonths": 12
              }
            }
          ]
        },
        {
          "id": "3",
          "title": "On Aircraft Engineering",
          "description": "The Contractor shall deliver all work on time and in full, in accordance with the agreed scope, specifications, and deadlines and in accordance with the Statement of Requirement. Any deviation must be pre-approved via the Change Control process.",
          "observations": [
            {
              "id": "frequency",
              "period": {
                "durationInMonths": 12
              }
            }
          ]
        },
        {
          "id": "4",
          "title": "Quality Compliance",
          "description": "To monitor and report the number of non- compliances identified during service delivery, ensuring adherence to documented Quality Management System (QMS) and applicable standards (e.g., ISO 9001).",
          "observations": [
            {
              "id": "frequency",
              "period": {
                "durationInMonths": 12
              }
            }
          ]
        },
        {
          "id": "5",
          "title": "Overall SLA Compliance",
          "description": "To provide a single, high-level metric that reflects how well all agreed SLAs are being met, enabling quick visibility of overall service performance.",
          "observations": [
            {
              "id": "frequency",
              "period": {
                "durationInMonths": 12
              }
            }
          ]
        }
      ],
      "statusDetails": null,
      "aboveThreshold": true
    }
  ],
  "initiationType": "tender"
}
23 Mar 2026 · 026320-2026 · award, contract
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  "tag": [
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  "date": "2026-03-23T14:26:48Z",
  "ocid": "ocds-h6vhtk-051cd9",
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          ],
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            {
              "id": "50212000",
              "scheme": "CPV",
              "description": "Repair and maintenance services of helicopters"
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          ]
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      "title": "714928467 - AESAS 2026",
      "value": {
        "amount": 14879505.2,
        "currency": "GBP",
        "amountGross": 14879505.2
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      "status": "pending",
      "options": {
        "description": "Second year is optional."
      },
      "renewal": {
        "description": "As per PA 23"
      },
      "documents": [
        {
          "id": "026320-2026",
          "url": "https://www.find-tender.service.gov.uk/Notice/026320-2026",
          "format": "text/html",
          "noticeType": "UK6",
          "description": "Contract award notice on Find a Tender",
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      "milestones": [
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      "relatedLots": [
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      "aboveThreshold": true,
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    "specialRegime": [
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      "id": "GB-PPON-PHVX-4316-ZVGZ",
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        "country": "GB",
        "locality": "Portsmouth",
        "postalCode": "PO2 8BY",
        "countryName": "United Kingdom",
        "streetAddress": "NCHQ, Leach Building"
      },
      "details": {
        "url": "https://www.gov.uk/government/organisations/ministry-of-defence",
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          {
            "id": "publicAuthorityCentralGovernment",
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      },
      "identifier": {
        "id": "PHVX-4316-ZVGZ",
        "scheme": "GB-PPON"
      },
      "contactPoint": {
        "name": "Eliot Murton",
        "email": "eliot.murton100@mod.gov.uk",
        "telephone": "03001554129"
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    {
      "id": "GB-COH-00242246",
      "name": "SERCO Limited",
      "roles": [
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        "postalCode": "RG27 9UY",
        "countryName": "United Kingdom",
        "streetAddress": "Serco House, 16 Bartley Wood Business Park"
      },
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      },
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        "email": "generalenquiries@serco.com"
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    }
  ],
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  "initiationType": "tender"
}
16 Sept 2025 · 056981-2025 · award, contract
{
  "id": "056981-2025",
  "tag": [
    "award",
    "contract"
  ],
  "date": "2025-09-16T14:21:25+01:00",
  "ocid": "ocds-h6vhtk-051cd9",
  "buyer": {
    "id": "GB-PPON-PHVX-4316-ZVGZ",
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            {
              "id": "50212000",
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              "description": "Repair and maintenance services of helicopters"
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      "value": {
        "amount": 13267000,
        "currency": "GBP",
        "amountGross": 15920400
      },
      "status": "pending",
      "options": {
        "description": "The contract will include the option to extend by up to one year after the initial end date of 31/03/2027. This requirement is intending to be fuldilled by a larger contract on its expiration. The option for extension is intded to be untilised should that larger contract not be be ready."
      },
      "renewal": {
        "description": "The contract will include the option to extend by up to one year after the initial end date of 31/03/2027. This requirement is intending to be fuldilled by a larger contract on its expiration. The option for extension is intded to be untilised should that larger contract not be be ready."
      },
      "documents": [
        {
          "id": "056981-2025",
          "url": "https://www.find-tender.service.gov.uk/Notice/056981-2025",
          "format": "text/html",
          "noticeType": "UK5",
          "description": "Transparency notice on Find a Tender",
          "documentType": "awardNotice",
          "datePublished": "2025-09-16T14:21:25+01:00"
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      "suppliers": [
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      "hasRenewal": true,
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          "status": "scheduled",
          "dueDate": "2025-11-28T23:59:59+00:00"
        }
      ],
      "relatedLots": [
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      "aboveThreshold": true,
      "contractPeriod": {
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        "startDate": "2026-04-01T00:00:00+01:00",
        "maxExtentDate": "2028-03-31T23:59:59+01:00"
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  "tender": {
    "id": "714928467",
    "lots": [
      {
        "id": "1",
        "status": "complete"
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    "title": "714928467 - AESAS 2026 - Provision of Aircraft Engineering Support and Airfield Services at Royal Naval Air Stations Yeovilton and Culdrose",
    "status": "complete",
    "documents": [
      {
        "id": "conflictOfInterest",
        "description": "Not published",
        "documentType": "conflictOfInterest"
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    ],
    "legalBasis": {
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      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "description": "The Royal Navy, part of the UK Ministry of Defence, intends to award a 1 + 1 year contract with a value of £13,267,000 to Serco for the Air Engineering Support and Airfield Services (AESAS). \nAs a covered procurement, this procurement falls to be regulated under the provisions of the Procurement Act 2023. \nIn the circumstances, the authority may award this public contract directly in accordance with section 41 of the Procurement Act 2023. The applicable direct award justification is that set out in paragraph 7 of Schedule 5 of the Act.  \nThis justification applies because the AESAS contract concerns the supply of services by the existing supplier which are intended as an extension to existing services in circumstances where:  \na change in supplier would result in the contracting authority receiving services that are different from, or incompatible with, the existing services. Namely, a different supplier would lack Serco’s (i) deeply embedded operational expertise and established relationships at Yeovilton and Culdrose, and (ii) suitably trained and experienced staff.   \n And \nb.\tthe difference or incompatibility would result in disproportionate technical difficulties in operation and/or maintenance. In particular, the difference in service provided by a different supplier would result in:  \ni. unacceptable risks to performance and safety resulting from the need to rebuild critical trust and operational knowledge; \nii. the contracting authority needing to invest additional resources in order to retrain staff, modify existing systems, and/or purchase additional equipment; \niii. a risk to the continued readiness and support to MCT aircraft, which is critical to national defence; \niv. significant adjustments to the Contractor’s Quality Management System, resulting in operational inefficiencies and increased costs;  \nv. disruption to coordination and maintenance of ground support and equipment provision at RNAS Yeovilton; and \nvi. increase in lead times in returning airframes to flying operations at RNAS Culdrose and reduction in overall numbers of available aircraft in the forward fleet.",
    "procurementMethod": "direct",
    "procurementMethodDetails": "Direct award",
    "procurementMethodRationale": "The Royal Navy, part of the UK Ministry of Defence, intends to award a 1 + 1 year contract with a value of £13,267,000 to Serco for the Air Engineering Support and Airfield Services (AESAS). \nAs a covered procurement, this procurement falls to be regulated under the provisions of the Procurement Act 2023. \nIn the circumstances, the authority may award this public contract directly in accordance with section 41 of the Procurement Act 2023. The applicable direct award justification is that set out in paragraph 7 of Schedule 5 of the Act.  \nThis justification applies because the AESAS contract concerns the supply of services by the existing supplier which are intended as an extension to existing services in circumstances where:  \na change in supplier would result in the contracting authority receiving services that are different from, or incompatible with, the existing services. Namely, a different supplier would lack Serco’s (i) deeply embedded operational expertise and established relationships at Yeovilton and Culdrose, and (ii) suitably trained and experienced staff.   \n And \nb.\tthe difference or incompatibility would result in disproportionate technical difficulties in operation and/or maintenance. In particular, the difference in service provided by a different supplier would result in:  \ni. unacceptable risks to performance and safety resulting from the need to rebuild critical trust and operational knowledge; \nii. the contracting authority needing to invest additional resources in order to retrain staff, modify existing systems, and/or purchase additional equipment; \niii. a risk to the continued readiness and support to MCT aircraft, which is critical to national defence; \niv. significant adjustments to the Contractor’s Quality Management System, resulting in operational inefficiencies and increased costs;  \nv. disruption to coordination and maintenance of ground support and equipment provision at RNAS Yeovilton; and \nvi. increase in lead times in returning airframes to flying operations at RNAS Culdrose and reduction in overall numbers of available aircraft in the forward fleet.",
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        "id": "singleSuppliersTechnicalReasons"
      },
      {
        "id": "defenceSecurityAirMaritimeTransport"
      },
      {
        "id": "defenceSecurityQualifyingNewAward"
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    ]
  },
  "parties": [
    {
      "id": "GB-PPON-PHVX-4316-ZVGZ",
      "name": "Ministry of Defence",
      "roles": [
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      ],
      "address": {
        "region": "UKJ31",
        "country": "GB",
        "locality": "Portsmouth",
        "postalCode": "PO2 8BY",
        "countryName": "United Kingdom",
        "streetAddress": "Navy Commercial, NCHQ, Whale Island"
      },
      "details": {
        "url": "https://www.gov.uk/government/organisations/ministry-of-defence",
        "classifications": [
          {
            "id": "publicAuthorityCentralGovernment",
            "scheme": "UK_CA_TYPE",
            "description": "Public authority - central government"
          }
        ]
      },
      "identifier": {
        "id": "PHVX-4316-ZVGZ",
        "scheme": "GB-PPON"
      },
      "contactPoint": {
        "email": "eliot.murton100@mod.gov.uk"
      }
    },
    {
      "id": "GB-COH-00242246",
      "name": "SERCO LIMITED",
      "roles": [
        "supplier"
      ],
      "address": {
        "region": "UKJ37",
        "country": "GB",
        "locality": "Bartley Way Hook",
        "postalCode": "RG27 9UY",
        "countryName": "United Kingdom",
        "streetAddress": "Serco House, 16 Bartley Wood Business Park"
      },
      "details": {
        "vcse": false,
        "scale": "large"
      },
      "identifier": {
        "id": "00242246",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "email": "generalenquiries@serco.com"
      }
    }
  ],
  "language": "en",
  "initiationType": "tender"
}
22 May 2025 · 024551-2025 · planning
{
  "id": "024551-2025",
  "tag": [
    "planning"
  ],
  "date": "2025-05-22T10:21:29+01:00",
  "ocid": "ocds-h6vhtk-051cd9",
  "buyer": {
    "id": "GB-PPON-PHVX-4316-ZVGZ",
    "name": "Ministry of Defence"
  },
  "tender": {
    "id": "714928467",
    "lots": [
      {
        "id": "1",
        "status": "planned",
        "hasRenewal": true,
        "contractPeriod": {
          "endDate": "2027-04-30T23:59:59+01:00",
          "startDate": "2026-05-01T00:00:00+01:00",
          "maxExtentDate": "2029-04-30T23:59:59+01:00"
        }
      }
    ],
    "items": [
      {
        "id": "1",
        "relatedLot": "1",
        "additionalClassifications": [
          {
            "id": "50211100",
            "scheme": "CPV",
            "description": "Aircraft maintenance services"
          }
        ]
      }
    ],
    "title": "AESAS 2026 - Provision of Aircraft Engineering Support and Airfield Services at Royal Naval Air Stations Yeovilton and Culdrose",
    "value": {
      "amount": 12200000,
      "currency": "GBP",
      "amountGross": 14640000
    },
    "status": "planned",
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "description": "There is an intention to run a procurement in the future for the provision of Aircraft Engineering Support and Airfield Services at Royal Naval Air Stations Yeovilton and Culdrose.\nThis would be for a follow on contract from an existing contract and would potentially be a direct award contract.\nThe information in this Notice is purely for information, and no further details are available at this stage. Please do not contact the contracting authority regarding this notice. Further details will be provided in a future tender notice, if the opportunity progresses.",
    "communication": {
      "futureNoticeDate": "2025-12-01T23:59:59+00:00"
    },
    "aboveThreshold": true,
    "mainProcurementCategory": "services"
  },
  "parties": [
    {
      "id": "GB-PPON-PHVX-4316-ZVGZ",
      "name": "Ministry of Defence",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKJ31",
        "country": "GB",
        "locality": "Portsmouth",
        "postalCode": "PO2 8BY",
        "countryName": "United Kingdom",
        "streetAddress": "Navy Commercial, NCHQ, Whale Island"
      },
      "details": {
        "url": "https://www.gov.uk/government/organisations/ministry-of-defence",
        "classifications": [
          {
            "id": "publicAuthorityCentralGovernment",
            "scheme": "UK_CA_TYPE",
            "description": "Public authority - central government"
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      },
      "identifier": {
        "id": "PHVX-4316-ZVGZ",
        "scheme": "GB-PPON"
      },
      "contactPoint": {
        "email": "lee.culshaw100@mod.gov.uk"
      }
    }
  ],
  "language": "en",
  "planning": {
    "documents": [
      {
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        "url": "https://www.find-tender.service.gov.uk/Notice/024551-2025",
        "format": "text/html",
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        "datePublished": "2025-05-22T10:21:29+01:00"
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}