Air Berlin may drop more long-haul routes next week to cut costs as it races to find investors before it runs out of cash, people familiar with the matter said Friday. The carrier had already announced plans to bring forward by a month to Oct 1 the cancellation of its services from Berlin to Los Angeles and San Francisco, and from Dusseldorf to Boston. This week it also said it was dropping flights from Berlin to New York and Miami, and from Dusseldorf to Orlando as of Sept 25. "The next step will be that further long-haul planes from Dusseldorf will be grounded," one person familiar with the industry said Friday. Another person also said long-haul routes from Dusseldorf were to be dropped. Air Berlin said talk of cancelling more routes was "speculation". <br/>