during the preventative repair in calendar week 48 of 2001
.... following measures were performed during preventative repair in calender week 48 of 2001....
"vorbeugend" meaning preventative, but in regards to Instandsetzung I have the following comment: the main idea is to do repair and replacement on vital items before the whole item is completely disfunctional, therefore Instandsetzung means something needs to be repaired, vs. Instandhaltung meaning maintenance. It now depends in which context this word needs to be used, if it is a machine, a building or a general repair. Depending on the context, overhaul, restoration or repair would apply. I hope this helps
Local time: 08:16
Native speaker of: German
PRO pts in pair: 32