That is the certified ceiling for a 777 , that's correct
http://www.boeing.com/boeing/commercial/777family/pf/pf_facts.page
That does not mean that they usually cruise at that altitude . Usually 32 to 39 thousand feet is standard depending on weather , and the route.
LEAPup was referring to a report that the 777 in question, was flying up at 45,000 feet from a supposed military surveillance radar contact. This is an obvious lie . Why are major news media pushing this lie ?.
You found the certified ceiling for that 777 , I posted a link to it , how hard was that. Why the media lie. Sounds allot like that media lie that there is a person who " fat fingered " an order and caused a significant crash in the market. Another lie that was pushed by the major media.
You don't just go to 43,100 feet after take off . There is a flight plan that has to be followed . What was the flight plan for that 777 to Beijing ?. The media who are interested in lies, are not interested in that question , are they? . What was air traffic control doing when that 777 deviated from its flight plan ? .
Did not contact the pilot.
Did not contact the dispatcher.
Did not contact the airline.
Did not contact the military to inform them that there is a 777 that has departed it's filed flight plan , and ... . Nothing, it appears they did nothing.