1.   As a result, banks and aircraft leasing companies threatened to ground the airlines unless they were covered.

2.   Because pilots cannot be readily replaced, they can instantly ground the airline, costing the company millions of dollars a day.

3.   Both the union and the company said Tuesday that they would resume negotiations quickly in the hopes of averting a strike, which would ground the airline.

4.   But the subsequent discovery that ValuJet was not properly supervising its maintenance contractors forced the FAA to ground the airline.

5.   Delta officials have said they will ground the airline if the pilots walk out.

6.   FAA May Ground Alaska Airlines The Federal Aviation Administration threatened to shut down major maintenance operations at Alaska Airlines, which would ground the airline within months.

7.   The agency takes similar action regularly and has moved to ground other airlines, he said, although they typically are smaller carriers.

8.   The Federal Aviation Administration threatened Friday to shut down major maintenance overhauls at Alaska Airlines, which would ground the airline within months.

9.   Transportation Secretary Frederico Pena said today there was no reason to ground the airline.

10.   Air Canada and its flight attendants continued negotiations Wednesday, with no progress to report, as a midnight strike deadline approached that could ground the airline.