Analysis of information sources in references of the Wikipedia article "Катастрофа Boeing 777 у Сан-Франциско" in Ukrainian language version.
06/005 SFO navigation instrument landing system Runway 28L glide path out of service with effect from or effective from 1306011400-1308222359
06/005 SFO navigation instrument landing system Runway 28L glide path out of service with effect from or effective from 1306011400-1308222359