Logstash ping (or similar) to report its health to Amazon ELB

I have an Amazon Load Balancer which is has a health checker which attempts to connect to my Logstash instance which is running on some_ec2_instance:5000

My ELB health check attempts to open a tcp connection at some_ec2_instance:5000 however it never passes this health test. If I manually connect to the the ec2 instance and check that Logstash is running and it is indeed operational and I can also telnet localhost 5000 into it without any problems.

In addition my security group allows input/outputs on port 5000 so I don't think the configuration of that is a problem.

Anybody got any suggestions for how to enable the ELB' to pass the health check? is there a/ping` path or a plugin which will enable access to such path?