ORA-16619: health check timed out
Cause : This status is returned when the Data Guard broker could not reach a standby database during a routine health check.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
This typically indicates a network problem where the standby database is unable to respond to the primary database within a predefined time frame.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.