Diagnosis
The maintenance type for burning hours was changed in the specifiedyear. Therefore, you are not permitted to copy the values of this yearto another year.

Procedure
For the year to be copied:
Select another year that had no changes to the maintenance type and cantherefore be copied.
For the year to which the values are to be copied:
Check whether the entries are correct in the EBURNHMT table (formaintenance types) and, if necessary, delete the entry that results ina change to the target year.