31. The Rail Wheel Plant project was completed with a safety record of 1 million safe man hours . 32. This was reduced to 80 man hours . 33. It now takes 4, 000 man hours to visually inspect all 24, 000 tiles after each flight. 34. A lot of man hours were spent, but at the end of the day, you effectively netted zero. 35. It required the organized labor of thousands of man hours , as people carried the earth in handwoven baskets. 36. Man hours to complete : 7.537. All the activity was generated by over 50 subcontractors and 2.3 million man hours without a single injury. 38. He called the fatality rate of . 83 per 1, 000 man hours good for a deep-level mine. 39. :Then we assume that the man hours per bridge is the same in both parts of the problem. 40. The only cost ( man hours to change existing usage instances ) is in implementing a forced migration.
