 All 176 passengers and 13 crew members, among them 154 Germans and 9 Polish people died, presumably instantly.It was found that one of the air speed indicators of the Boeing 757-225 was not working properly due to a mud dauber wasp having made a nest in a pitot tube, confusing the pilots about whether the plane's speed was too fast or too slow.The black box, data recorder pointed to error by the captain, because instead of measuring the air speed through one of the working air speed indicators he continued to use the faulty indicator and did not return to the airport.