From an airline pilot's perspective, the cockpit voice recorder issue is probably the most sensitive. It has certainly been the most controversial. When CVRs were first installed, it was with the understanding that pilots would be sacrificing their rights to privacy to help advance air safety by accommodating a tool that was useful in accident investigation. The quid pro quo was that the recorded information be of a specific duration (30 minutes), be erasable by the flight crew on the ground, and be used only for its intended purpose, that is, accident investigation.Your cameras would be on 24/7 and the data they broadcast would be subject to permanent capture. Think about life in your workplace (or if you've never held a job, in your school). Yes, you're probably serious most of the time. But would you want the entire world hearing and seeing every time you goof off, make an off-color joke, or just express thoughts you'd rather keep private? Probably not. So I think this is why we've never seen anything like this - because it would be so incredibly intrusive.
Thus there was a balance between a flight crew's individual right to privacy and the collective benefits for aviation safety. Over time certain of these constraints have become blurred, and the balance has tilted. Some of the newer CVRs - quite legal, and certainly more capable technologically - have no erase feature, and up to 2 hours of voice data is recorded. Abuses of CVR information, including inappropriate release of the recorded information, and inclusion in transcripts of non-pertinent conversation, have been viewed by many airline pilots as violating the original compact.
posted by JayRwv at 6:43 PM on April 10, 2011