Northwest Airlines Corp. (NWAC) plans to ground 24 passenger jets in addition to six it had previously planned to stop flying, in moves that will see up to 930 job cuts, the airline said on Friday.

The Eagan, Minn. airline said earlier this week that it planned to keep 2005 domestic capacity flat, backtracking from a January forecast of a 2 to 3 percent rise in available seats because of high fuel costs, competitors' fare cuts and industry-wide excess capacity.

Northwest, the country's No. 4 airline, said most of the aircraft grounded would be McDonnell-Douglas DC-9s (search).

Northwest said it would close down a maintenance check line in Minneapolis/St.Paul, cutting 130 jobs, by May. Another 700-800 jobs will be eliminated by year-end, the airline said.

Northwest has already cut non-labor costs by $1.7 billion and cut pay and benefits for pilots and managerial and salaried staff by $300 million a year.