To: Rainboe
I'm inclined to believe it is a claim without foundation. Why should x hundred aeroplanes be changed on somebody's whim?
Before the FAA and I assume other certification authorities make any changes they perform a cost benefit analysis. This is especially true if the aircraft can be lost due to a component or system failure.
They determine the cost in human lives applying a value of 2.7 million dollars. The US Department of Commerce the parent of the FAA and the NTSB derives this figure.
They total up the number of passengers in an aircraft and multiply it by the figure above. If it costs more to make the change than the cost in human lives they will recommend that the change not be implemented even if the NTSB disagrees.
