21.   Under the old system, LAX used the landing fees to make up the difference between its revenue and its expenses every year.

22.   Gendrin declined to say what payments were owed in London, but other Swissair sources said they concerned unpaid landing fees.

23.   Gendrin declined to say what payments were owed in London, but other Swissair sources said they involved unpaid landing fees.

24.   Once the proud national carrier, Swissair last month had its planes grounded because the company could no longer pay fuel and landing fees.

25.   One possible incentive would be to charge lower landing fees for less-used airports.

26.   Swissair spokesman Patrick Gendrin declined to say what payments were owed in London, but other Swissair sources said they concerned unpaid landing fees.

27.   The airline took up the offer of reduced landing fees the city held out as a carrot to attract new carriers and destinations.

28.   That could mean higher landing fees during peak times or fewer takeoffs and landings during certain hours.

29.   Transportation Secretary Norman Y. Mineta has indicated support for higher landing fees to encourage airlines to shift some flights from peak times.

30.   Higher costs, including landing fees and facility charges, have cut the targeted flight operations at Kansai, said KIAC, which is two-thirds government owned.