NASA blows millions on flawed airline safety survey

 作者:冼猴医     |      日期:2019-03-01 06:15:01
HAS NASA wasted $11.3 million on a flawed survey of airline safety? It looks likely. The agency commissioned a telephone pollster to ask 29,000 pilots about their near misses, runway collisions and technical problems. At first, the poll seemed to show that these events had previously been alarmingly under-reported. Engine failures, for instance, were cited in NASA’s survey at four times the rate recorded in the Federal Aviation Administration’s incident records. The problem is that NASA appears to have counted some incidents more than once. Pilots were given anonymity,