SYSTEM AND METHOD FOR PROVIDING AND MONITORING UV ILLUMINATION IN AN INTERIOR OF AN AIRCRAFT

A system (2) for providing and monitoring UV illumination in an interior of an aircraft (100) comprises at least one switchable UV light source (6); a light detector (8), responsive to visible light and UV light and configured for providing sensor outputs regarding detected light; and a controller (10) for monitoring an operational status of the at least one switchable UV light source (6). The controller (10) is configured to determine the operational status of the at least one switchable UV light source (6) by comparing a first sensor output, provided by the light detector (8) when the at least one switchable UV light source (6) is activated, with a second sensor output, provided by the light detector (8) when the at least one switchable UV light source (6) is deactivated.