Since 1978, when commercial aviation was deregulated, no fewer than 137 carriers have filed for bankruptcy protection.

The carrier filed a reorganization plan on July 21 that called for full repayment of its $3.5 billion in debts.

Investors seemed to focus on the prospect that other carriers - especially the beleaguered United Airlines - would also file for bankruptcy.

The established carriers had filed one lawsuit after another against Southwest, then a little Texas discount airline, and each had failed.

After that either the carrier or any parties in the case can file a plan.

One basic requirement of the communications act is that all carriers file with the commission and make available for public inspection "schedules showing all charges."

Over 60 telecommunications carriers in the U.S. filed for bankruptcy between 2000 and 2002.

One carrier thought it was demeaning and filed a complaint.

The combined new carrier must file a winter flight schedule with international authorities by Oct. 22.

The carrier has filed a motion in bankruptcy court to cancel the original agreement.