Thus, it is obvious that airlines have a signi"cant
"nancial incentive to reduce the number of GDIs
that occur. However, due to the di$culty that often
accompanies the calculation of the total cost of
each GDI, airlines have not been able to quantify
the magnitude of the losses with any accuracy.
In addition, airlines have had a di$cult time controlling
these costs, since they have been
unable to pinpoint the causes of recurrent incidents