A Northwest spokesman said the airline declined to comment beyond the filing.
All three airlines and Texas Pacific have declined to comment.
The airline declined to comment on the case.
The airline itself declined to comment on the crisis.
The three airlines declined yesterday to comment on the announcement, which is expected today.
The airlines declined to discuss what they will do when the tax expires.
The airline, which elected to buy back the shares with cash, declined to do so because it would hurt its financial condition.
Other major airlines declined to participate in the consortium effort, according to people familiar with their decisions.
Even though the company has had as many customers bidding this quarter, the airlines made available fewer seats and the average ticket price declined.
Both the airline and the union declined to give details of the tentative agreement.
