At the start up of operations for the 2021-2 run, it was discovered that one of the cards which aggregates data from multiple modules in the EIGER2 detector on 24-ID-C was faulty.  As a result, NE-CAT was forced to reschedule all users on 24-ID-C for the first week of user operations.  However, Dectris was able to immediately send us a replacement part which was successfully installed by Ed Lynch, Jim Withrow, and Malcolm Capel.  Replacing the card did require removal of the EIGER2 from the 24-ID-C A-frame and its subsequent re-installation.