London Underground Central Line Audible Alarm Unit - Design & Replacement of Combined Power Supply / Power-Amplifier Printed Circuit Board

{
  "id": "056351-2025",
  "tag": [
    "planning"
  ],
  "date": "2025-09-12T16:41:40+01:00",
  "ocid": "ocds-h6vhtk-0599c0",
  "buyer": {
    "id": "GB-PPON-PHMT-6197-NWNZ",
    "name": "Transport for London"
  },
  "tender": {
    "id": "WS2683802782",
    "lots": [
      {
        "id": "1",
        "status": "planning",
        "contractPeriod": {
          "endDate": "2028-03-31T23:59:59+01:00",
          "startDate": "2026-04-01T00:00:00+01:00"
        }
      }
    ],
    "items": [
      {
        "id": "1",
        "relatedLot": "1",
        "deliveryAddresses": [
          {
            "region": "UKI",
            "country": "GB",
            "countryName": "United Kingdom"
          }
        ],
        "additionalClassifications": [
          {
            "id": "31720000",
            "scheme": "CPV",
            "description": "Electromechanical equipment"
          },
          {
            "id": "35121700",
            "scheme": "CPV",
            "description": "Alarm systems"
          },
          {
            "id": "50222000",
            "scheme": "CPV",
            "description": "Repair and maintenance services of rolling stock"
          },
          {
            "id": "60210000",
            "scheme": "CPV",
            "description": "Public transport services by railways"
          }
        ]
      }
    ],
    "title": "London Underground Central Line Audible Alarm Unit - Design & Replacement of Combined Power Supply / Power-Amplifier Printed Circuit Board",
    "value": {
      "amount": 200000,
      "currency": "GBP",
      "amountGross": 220000
    },
    "status": "planning",
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "description": "Scope \nDescription \nThe proposed tender is intended to secure LUL 92TS Central Line Audible Alarm Unit (AAU) - Design & Replacement of Combined Power Supply (PSU)/ Power-Amplifier Printed Circuit Board (PCB) updates required on the 1992 Tube Stock (92TS) Central Line of the Preliminary Market Engagement document. \nContext:  \nTfL is exploring market interest and capability for remediation of 92TS Audible Alarm Units (AAU) by replacing the combined Power Supply Unit (PSU)/Power Amplifier Printed Circuit Board (PCB) inside each AAU, carrying out required factory and site testing, and returning fully functional AAUs for service. The AAU comprises two internal boards -   \nCombined PSU/Power-Amplifier PCB  \nVoice synthesis PCB  \nFailures have occurred exclusively on the Power Supply Unit (PSU)/Power-Amplifier PCB, which is no longer supported by the Original Engineering Manufacturer (OEM). Given the AAU's safety-critical function, trains cannot operate without it, making obsolescence remediation essential.    \nTfL intends to proceed in phases:  \nPhase 1 - Development of 2 prototype combined PSU/Power-Amplifier PCB units (PCB design validation, Final Acceptance Testing (FAT) and Site Acceptance Testing (SAT))  \nPhase 2 - Production of 18 units of combined PSU/Power-Amplifier PCB subject to prototype approval.  \nPhase 3 - Potential Future Demand (option) - up to 180 additional combined PSU/Power-Amplifier PCB units  \nObjective:  \nIdentify suppliers with capability to design, replace, and test PSU/Power-Amplifier PCBs within existing AAU housings, while maintaining fit, form, and function equivalence.  \nUnderstand supplier approaches to obsolescence management, aiming for 15-20 years of ongoing support.  \nAssess capacity to deliver through a phased model: prototypes, batch production, and potential scaling.  \nEvaluate supplier test and assurance capability, including: \nFinal Acceptance Testing (FAT)  \nSite Acceptance Testing (SAT)  \nCompliance with RIA 12 and EN 50121-3-2 (EMC), and BS EN 61373 Cat 1, Class B (shock & vibration).  \nGain insight into market best practice for low-volume, safety-critical electronics.",
    "communication": {
      "futureNoticeDate": "2025-10-02T23:59:59+01:00"
    },
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": false,
    "mainProcurementCategory": "goods"
  },
  "parties": [
    {
      "id": "GB-PPON-PHMT-6197-NWNZ",
      "name": "Transport for London",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKI41",
        "country": "GB",
        "locality": "London",
        "postalCode": "E20 1JN",
        "countryName": "United Kingdom",
        "streetAddress": "5 Endeavour Square"
      },
      "details": {
        "classifications": [
          {
            "id": "publicAuthorityCentralGovernment",
            "scheme": "UK_CA_TYPE",
            "description": "Public authority - central government"
          }
        ]
      },
      "identifier": {
        "id": "PHMT-6197-NWNZ",
        "scheme": "GB-PPON"
      },
      "contactPoint": {
        "email": "BSFAribaAdministration@tfl.gov.uk"
      }
    }
  ],
  "language": "en",
  "planning": {
    "documents": [
      {
        "id": "056351-2025",
        "url": "https://www.find-tender.service.gov.uk/Notice/056351-2025",
        "format": "text/html",
        "noticeType": "UK2",
        "description": "Preliminary market engagement notice on Find a Tender",
        "documentType": "marketEngagementNotice",
        "datePublished": "2025-09-12T16:41:40+01:00"
      }
    ],
    "milestones": [
      {
        "id": "engagement",
        "type": "engagement",
        "status": "scheduled",
        "dueDate": "2025-10-02T23:59:59+01:00",
        "description": "Engagement process description \nPlease email HaliseAkkaya@tfl.gov.uk to request and complete the Preliminary Market Engagement Document. \nPlease answer all questions and send your completed questionnaire by email to the Procurement Manager, Halise Akkaya ( HaliseAkkaya@tfl.gov.uk ) before 17:00 GMT on 2nd October 2025.  Late Responses will not be considered. \nNon-responses to this expression of interest will be deemed as not interested. If bidders do not choose to participate in the Early Market Engagement process, this will not affect the ability to participate in the tender, if Expression of Interest to participate in the tender is received by the closing date. \nYour answers will be treated as TfL restricted in accordance with TfL standard S1782. Information security classification. This means that your answers will only be visible to people authorised by TfL, typically only the TfL staff involved in the procurement."
      }
    ]
  },
  "initiationType": "tender"
}