Stan Fischler has a dream. OK, so it's no Martin Luther King kinda dream, but it's a dream, nonetheless. Fischler, that ornery Brooklynite best known for six decades of hockey coverage, wants the Transit Authority to preserve a handful of "Redbirds" -- those World's Fair-era trains that run on the 2, 5 and 7 lines -- when it takes all 1,500 cars out of service later this year. The numbers-crunchers at the Transit Authority, however, have a different dream. They want to dump those "obsolete" Redbirds -- which actually perform better and stay in service longer than newer cars -- into the ocean to create artificial reefs where fish can breed. For now, they seem to be the only ones dreaming this impossible (to believe) dream. Governments up and down the Eastern Seaboard have rejected the plan (apparently, the cars contain asbestos), but now Dover, Delaware is considering allowing the Transit Authority to submerge half of the Redbird fleet off its coast. "Can you imagine the stupidity?" Fischler said the other day over a bagel at Barney Greengrass. "They want to take historic subway cars and dump them in the ocean! Forget about the environmental hazard, think of the waste of these cars." It's not that The Hockey Maven wants to stand in the way of progress -- the 40-year-old R-12s are slated to be replaced by shiny new cars -- but Fischler's "Save the Redbirds" campaign seeks the preservation of 20 of the unique red-and-silver cars, 10 for the Transit Museum (which may not want all of them) and 10 to continue running along the 7 line out to Shea Stadium. "We're not asking for the moon," said Fischler, a guy who will actually wait for a Redbird on the 2 line rather than jump on a sterile, stainless-steel 3 train (I've seen him do it). Transit Authority spokesman Bob Slovak refused to comment on Fischler's plan. "If someone has a proposal, let's hear it," Slovak said, dismissively. Slovak said that despite the rejections, the TA is aggressively pursuing its ocean-dumping plan. Fischler's dream is not merely the ranting of a subway-loving crank (and what if it was?!), but a reality in some places. San Francisco, a city that revels in its transportation history, not only spends lavishly to keep its celebrated trolleys in service, but also has a line on Market Street that's comprised of historic cars from all over the country. One of the cars is even from Brooklyn. Yes, you read that right: The only Brooklyn trolley car still in service in this country is in SAN FRANCISCO, not in New York. (Nice. It's bad enough that California took the Dodgers from Brooklyn. Now they also have one of the trolleys Brooklynites used to dodge!) The line is reminiscent of New York's "Nostalgia Special," which ran from midtown to the Transit Museum in Brooklyn in the late-1970s and featured historic cars -- including one that had been driven by LaGuardia himself. That didn't stop the TA from killing it in 1980 -- and throwing the historic cars on the scrap heap (apparently no one was dumping trains in the ocean back then). For Fischler, the "Save the Redbirds" campaign is personal. "I grew up in Williamsburg," he said, launching into a digression on Brooklyn, which ranks a close third to hockey (#1) and subways (#2) as Fischler's passions. "The IND built a station right under my building. I could hear the train coming in and the doors opening. I used to imagine the people getting out. I'd think, `Is that my friend Abe Yurkofsky or Sheldon Greenblatt getting off that train?' So of course I'm in love with the subway system." The first step (now that the Stanley Cup Finals are over, that is) will be to derail this ocean-dumping plan. Fortunately, anyone with common sense is a natural ally. "We were initially excited about it because artificial reefs enlarge fish breeding grounds," said Jim Mathias, mayor of Ocean City, Maryland. "But when we heard the word `asbestos,' we changed course. The last thing a tourist town like ours needs is getting a nickname like `Asbestos Reef.' That's a name that sticks, like `Dead Man's Curve.'" --30-- email: gershny@yahoo.com