Is the TPS need to recommissioned after the replacing the beam center alignment?

In developing countries like ours wherein the ratio of the number of linacs available per million population is very less, the patients need to travel miles to get the radiotherapy treatment. Naturally, it is expected to maintain as minimal downtimes as possible and finish the treatment at earliest. But instances like the failure of ion chamber, waveguide or beam centerline requires an enormous amount of post replacement work from a medical physicist so as to ensure radiation safety to patients. The quality assurance (QA) work starts with few basic tests and measurements to check for the beam properties. The big challenge for the physics team is to take the call on beam data matching, the entire beam data have to compare and match with the previous data on which the TPS is being commissioned