Project Description

Emergency Voice Communication System Replacement

Requirements definition, procurement evaluation and managing delivery of a new Emergency Voice Communication System (EVCS) at London Luton Airport.


Through part of their work on Capital Expenditure assessment at the Airport, Cyrrus identified the EVCS as one of the top priorities for replacement. Along with an aging EVCS, the requirement to meet Civil Aviation Authority 8.33kHz regulations and provision of new radios, provided an opportunity to undertake a full Emergency communications project, with a view to resolving ongoing issues with coverage and reception.

The relocation of Main and Contingency receivers from the Control Tower Building Sub-Equipment Room to a dedicated receiver site not only freed up space within a cluttered room but, also implemented a best practice design and removed opportunities for bleed-through and interference. This holistic approach to communications was echoed by the Air Navigation Service Provider (ANSP) and would allow the Airport to progress other replacement projects and enhance a rapidly expanding operation.

Cyrrus were engaged to define and generate the formal technical requirements documentation, complete the tender evaluation of potential suppliers and project manage the delivery of the new supplier and system into operational use.


A formal User Requirements Specification was produced that identified the operational requirement and included support, warranty, spares and training needs. Technical specifications were then produced to ensure a suitable and compliant communications switch and radios could be procured to meet that need, along with process requirements to de-risk project delivery.  At all times, Cyrrus consultation with ANSP staff ensured their need would be met, by equipment that could receive regulatory approval through their Safety Management System.

Following production of the requirements documentation, a tender pack was released to invited suppliers. Cyrrus facilitated site surveys alongside the ANSP, and provided technical response to a number of clarifying questions.  Following the return of supplier submissions, a consistent intelligent evaluation was conducted that examined the technical compliance of the suppliers, and of the equipment they offered against the project requirements, providing London Luton Airport a recommendation for preferred supplier.

Following the Airport’s selection of a supplier, Cyrrus were engaged to provide oversight for the delivery phase. This included attendance and review at the requirements validation and design review meeting, witnessing Factory Acceptance Tests for the radios and the switch, and Site Acceptance Test of the integrated system.  The first phase of delivery saw the relocation of Main and Contingency radios to the new receiver site; this removed the interference problem that had been encountered for some time.

Cyrrus provided pro-active management of the schedule, actions and issues to ensure delivery of a fit-for-purpose system with on-time and complete regulatory approval. Open actions and observations were recorded, tracked and managed through to closure prior to Technical Handover.


Following successful completion of the delivery, installation and commissioning phases by the supplier, the EVCS, Emergency radios and new Main and Contingency Receiver Site were technically handed over to the ANSP, to complete the safety assurance process.
The new equipment entered operational service at London Luton Airport in June 2016.

Cyrrus has provided London Luton Airport Operations Limited with technical consultancy services since 2011, always providing professional and friendly guidance. Their assistance with the replacement Emergency Voice Communications project was therefore guaranteed, and once again, they provided invaluable assistance to ensure a fit for purpose, cost effective solution was delivered against valid and specific requirements. Their use of best practice engineering process and in-depth experience of Communications, Navigation and Surveillance systems were invaluable in resolving any issues encountered and allowing delivery of a fully approved operational system.
Mark Graves, Senior Manager, Technical Services Department, London Luton Airport