Originally Posted by
aviatorhi
You're supposed to get it tested according to 67.105(a). A cursory reading suggests that one ear is sufficient so long as the test is conducted in accordance with 67.105(a)(2). Hopefully an AME can provide more details.
In my practical experience I've always been tested with the method in 67.105(a)(1) aka. "Can you hear me now?... Good".
My hearing is no issue at all. I can hear perfectly well, even in a loud environment. I can't justify it as an issue. I take it if you can hear ATC, and your buddy beside you, you should be A OK.