78272201 2020 115 09:00 1 6.01.02 replaced event timer input and readout electronics 
78272201 2019 148 18:15 1 12.01.02 Replacement of pressure sensor due to -0.25hPa offset 
78272201 2016 132 15:00 1 06.01.02 Replacement of detector due to degradation 
78272201 2014 121 12:00 3 99.99.99 System put into operation