... New York, 1997. p. 150 . 90 What Went Wrong? 5. Operators should be trained to "look before they leap" when they find valves wrongly set. See also Section 3.3 .5 (a). Other accidents ... Abbeystead E.~pl~~loiz, Her 211. p. 45. Pwgress, Vol. 11, No. 2, Apr. 1992. p. 85. MajesiLy‘s Stationery Office, London. 19 85. 70 What Went Wrong? made to operate it manually. It ... 19 75. cal Engineers. Rugby, UK, 1978. Nov. 12, 1976. Association, London. 19 85. p. 6. Progress, Vol. 5, No. 3. July 1986, p. 1 65. 10. Hazai-dous Caigo Bulletirz, Jan. 19 85. ...