KNTV NBC Bay Area News At 11 July 29, 2013
Land on a clear day at sfo. The pilot can do it visually or use instruments to guide the craft down to the runway. Right now because of construction, one of those landing instruments called glide slopes are not available on two of sfos main runways. Including the one that was to be used by asiana when it crashed. Until then, the faa is requesting foreign carriers to utilize another tool through gps. The move by the faa today is extremely unusual, one said. I think its very uninformation given the fact that its not isolated to one particular carrier but apparently involves multiple air carriers...