Cockpit noise levels
My company operate mix of Airbus aircraft some fitted with noise canceling headsets and others that are not. The difference in noise levels is considerable and a day out on the A319 without ANR is an ordeal.
What are the allowable noise levels in the cockpit? I know aviation is exempt most health & safety directives but European Directive (2003/10/EC) quotes a maximum noise level of 87db.
I downloaded an application (decibel) for the iphone that measures noise levels and today got readings of 79db in the cruise and 97db during the climb. If anyone else downloads the app I would be interested to see what readings you get.