Glide Slope

FAA Wants Foreign Pilots To Use GPS Instruments To Land At SFOIn a response to the deadly Asiana Airlines crash, the Federal Aviation Administration is advising that all foreign airlines use GPS technology when landing at the San Francisco International Airport because of concerns over pilots’ experience with visual approaches.
Flight Simulator Shows SFO Landing System Not Likely Factor In CrashEric Medina, an instructor at California Airways Flight School in Hayward, utilized a flight simulator to recreate for KPIX 5 what the landing looked like on SFO's runway 28-L without using the glide slope.