ABC News spoke with two senior U.S. officials and an Israeli source.
A United Airlines flight traveling from San Francisco to San Jose del Cabo returned to San Francisco International Airport shortly after takeoff Thursday due to a tire blowout.
A pilot jumped out of the door of a moving plane to his death, leaving the student he was teaching to fly to land the aircraft by herself.
All passengers and crew were reported safe after a Delta Air Lines passenger plane made an emergency landing Monday afternoon at Fresno Yosemite International Airport.
The FAA says it will investigate.