Should you identify a potential or actual risk to HSE when working offsite, you should in the first instance stop work and report it to the host organisation’s management or safety representative, outlining your concerns and requesting corrective action.
If the host cannot make the situation safe, and it poses an unacceptable risk to HSE, then you are empowered to stop work, inform the host organisation’s representative of your continued concerns and inform your Rolls-Royce manager so that appropriate support can be given to both yourself and the host organisation to resolve the situation.