Do you know the number for ? http://www.flyeauclaire.com/long-term-effects-of-adcirca adcirca news Here is what is known: Seven seconds before impact, someone in the cockpit asked for more speed after apparently noticing that the jet was flying far slower than its recommended landing speed. A few seconds later, the yoke began to vibrate violently, an automatic warning telling the pilot the plane was losing lift and in imminent danger of an aerodynamic stall. One and a half seconds before impact came a command to abort the landing.