. >> south korea asiana airlines amounsd it's taking steps to avoid another september, airline now says it's strengthened pilot training encouraging staff members to report more problems. >> some passengers are at their destination tonight after scary moments today. they're alaskan airlines plane had to turn back after an hour in the air and had to make an emergency landing. those are trails showing that a jet returned there. crews were waiting and nobody was hurt. the passengers ask crew left a couple hours later on a different plane >> talking air travel you've heard about commercial pilots tonight alarming information it's nearly happened many times in the south bay. a report found commercial pilots nearly landed in moffett field at least half a dozen times. david with navigation on board jets, hard to imagine this happens often. >> one expert told us there shouldn't be confusion. sometimes there is cloud cover. >> in daylight, sky 7 confirms it's easy to spot differences between mineta and moffett field. at night in san carlos, landmarks on the ground are difficult to spot and pilot