How to search for files with immutable attribute set?

For config auditing reasons, I want to be able to search my ext3 filesystem for files which have the immutable attribute set (via chattr +i). I can’t find any options for find or similar that do this. At this point, I’m afraid I’ll have to write my own script to parse lsattr output for each directory. Is there a standard utility that provides a better way?

What mount option to use for ext3 file system to minimise data loss or corruption?

I have an embedded setup using an initramfs for the root file system but using a custom ext3 partition mounted on a compact flash IDE drive. Because data integrity in the face of power loss is the most important factor in the entire setup, I have used the following options to mount (below is the entry from my /etc/fstab file