As the world struggles to find out more information about the San Francisco crash landing, Twitter user Steve Baker used flight tracking website FlightAware to compare yesterday's Asiana Airlines Flight 214 (AAR 214) to today's ill-fated flight.

Here's his Tweet:

Look at an enlargement of the two descent paths (the part of the graphic that looks like a solid black wall):

Compare the two flight paths, and you'll notice Friday's glide slope was much smoother than today's. Saturday's flight path suddenly veered downward just before the tail section of the plane hit the rocks on the shore at the end of the runway.

The reason for this deviation is still unknown.

SEE ALSO: Plane Crashes While Landing at San Francisco Airport

Meanwhile, an audio recording of air traffic control during the crash has surfaced:

Here's the transcription, courtesy Time:

Flight 214 cleared into land 28L at 18:21:12 Zulu 18:22:27: Flight 214 calls ATC 18:22:30: Tower says, “214 Heavy, Emergency Vehicles are responding” 18:22:37: Flight 214 calls again. Can’t make out what is said. 18:23:10: Flight 214 calls again. Can’t make out what is said. 18:23:25: ATC says, “Emergency vehicles are responding. We have everyone on their way.” 18:27:02: Another plane calls ATC, “We see people (at our vicinity) that need immediate attention. They are alive and they are walking around.”

Pics courtesy FlightAware, Steve Baker; audio file via YouTube, Anon Nymous