As I said, Mike, the story I heard was that she thought Skywest hadn't heard the TIPH instruction, and assumed Skywest was holding short so she didn't bother to say the words, "Hold short." That intersection was hidden behind the glare of bright lights between the runway and the tower, so she didn't see the aircraft holding on the runway. From USair's perspective, they were facing directly into the sun and also didn't see Skywest down the runway at an intersection. I don't know about the flight progress strip situation at the time in LAX tower.
Just looked up the Wiki article, as you got me wondering if I remembered it correctly:
- The local controller who cleared both aircraft to use the same runway, Robin Lee Wascher, testified before the NTSB and accepted blame for causing the crash. She said she originally thought the landing USAir plane had been hit by a bomb, then "realized something went wrong... I went to the supervisor and I said, 'I think this (the SkyWest plane) is what USAir hit.'" She testified that rooftop lights in her line of sight caused glare in the tower, making it difficult to see small planes at the intersection where the SkyWest plane was positioned. Just before the accident, she confused the Skywest plane with another commuter airliner that was on a taxiway near the end of the runway. Making matters more difficult, the ground radar at LAX was not working on the day of the accident.
And apparently I didn't hear the correct story, or it was told to me incorrectly, as in her testimony the controller said she confused Skywest with a Wings West Metroliner that was also on frequency. From the L.A. Times article of the NTSB hearing in 1991:
- Speaking calmly in succinct, measured phrases, she described her confusion before the accident. She said she directed the SkyWest metroliner onto the runway at a midpoint intersection, but she thought she was talking to the pilot of a Wings West metroliner that was on a taxiway near the end of the runway.
This error positioned the SkyWest plane directly in the path of the landing jetliner. But Wascher said rooftop lights in her line of sight created glare on the control tower windows and made it difficult to see small planes at the intersection where the SkyWest plane was positioned.