NBC News says an FAA traffic control system failed when a U-2 flew across Southern California last week.
Airports back to normal after an unspecified computer problem halted departures from L.A.-area terminals.
NTSB investigators hoping to finish their probe before first anniversary of July 6 accident.
The world’s largest commercial aircraft on approach to SFO, complete with a litany of local landmarks.
Safety board holds hearing as report says pilot was nervous about landing without a key guidance system.