After a thorough investigation into the explosion of the Challenger space shuttle, a presidential commission report stated that the 20 - hour overtime limit was exceeded 480 times by one group of contract workers and 2,512 times by another.
Prezidenta komisija, kas rūpīgi pētīja kosmosa kuģa Challenger eksplozijas cēloņus, ziņoja, ka viena no līgumstrādnieku grupām 20 pieļaujamo virsstundu limitu bija pārsniegusi 480 reizes, bet cita — 2512 reizes.