An important update from the IOMAR team to maintain awareness & to advise operators who may be impacted by any loss/degradation of GNSS signals associated with the security situation in Ukraine, as well as in the Eastern Mediterranean, Baltic Sea & Arctic areas. IOMAR Safety Matters No: 01/23 has now been published as an update to Issue 01/22. Full details can be found by following the link: https://www.iomaircraftregistry.com/media/1895/safety-matters-01-2023.pdf