Asiana Airlines Flight 214
The Instrument Landing System (ILS) on runway 28L had been out of order since June 11.  Therefore, the planes were landed by the pilot, without a lot of help from the autopilot; the clear weather made it easier to do this.  Chesley Sullenberger, the pilot who saved US Airways Flight 1549, said that investigators would think about whether the ILS being unavailable could have helped the crash happen.