Subject RE: [firebird-support] firebird process hangs every aprox 10 days
Author Svein Erling Tysvær
>susi (Server) Tue Nov 20 15:42:27 2012 Modifying procedure
>SP_CARGA_LIQ_HABERES_DET which is currently in use by active user requests

I don't know anything about this part of Firebird, but the error message above sounds like someone is doing some data definition (ALTER PROCEDURE SP_CARGA_LIQ_HABERES_DET ...) whilst the procedure is in use (i.e. data manipulation) and to me that is like trying to fix the motor whilst the car is driving... What is your system doing?