L-1011 Case
If you lose a centreline engine, there is no assymetric effect and therefore no swing. As a result, recognition of the failure is more difficult. In performance calculations, it is required that an extra second be allowed between the point of failure and action, in the event of the number 2 deciding to give up for the day. On the L-1011, Lockheed incorporated a separate warning light in the pilot's eyeline to warn of No 2 eng fail to get around the extra sec performance penalty.
Last edited by Xavier Onassis; 9th May 2006 at 17:36.