The move extends the flight suspension set Tuesday after a rocket fell within a mile of the Ben Gurion International Airport in Tel Aviv.
The notice to airmen, prompted several international carriers to follow suit yesterday, sending thousands of fliers scrambling to change their plans.
Meanwhile, US Airways/American Airlines announced it would resume service to Israel on Thursday, pending FAA approval.
The agency said in a statement it was "working closely with the Government of Israel to review the significant new information they have provided and determine whether potential risks to U.S. civil aviation are mitigated so the agency can resolve concerns as quickly as possible."
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