Back in the day when I worked for the NBS, we had (and presumably they still do) a National Corrective Action process whereby a decision was made in the QA depts whether a local incident affected other sites. If it was deemed to be so, then a National Action was raised and faxed to the other centres for action. Before they were all on one QPulse, they would have to be individually logged on the zonal QPulse systems for action.
So, if you could link your incident reporting systems it would help, otherwise, perhaps a system where the original reporter sends it to other contacts, for them to log, rather than the original reporter logging in on each different system.