Investigators are done with their work at the airport . The Asiana plane 's wreckage is still there for future examination . Additional interviews with first responders is the only work still being done in San Francisco , the NTSB said . The NTSB is doing further interviews with first responders . Comment:
Investigators are done with their work at the airport . The Asiana plane 's wreckage is still there for future examination . The NTSB is doing further interviews with first responders . Comment: