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hwhdfsunhribunr comlfaunlty fhundayfeb 102000 general cosmetic dentistrvn for the whole family 1 including orthodontics for children adults jaw joint tmj treatment 9054757600 18 crown steel drive warden 14ih avenue x electronic insurance filing buttonville flight patterns abusive residents complain bymikeadler staff writer flight patterns around buttonville airport may be changed to help spare the nerves of richmond hill and markham residents several members of the airports communi ty committee said they think the busy 16th avenue facility is doing its best to keep pilots from flying too low but more than a year after the formation of the committee which includes markham and richmond hill householders and councillors a few residents of both towns are still expressing anger about overhead aircraft noise a complaint sent from a richmond hill fam ily to transport canada last week refers to three lowaltitude flights in the wee hours includ ing one at 212 am last thursday about 20 feet above house rooftops a few houses east from the residents ask transport canada for action how could you keep on condoning such abusive flyings especially in the middle of the night committee chairperson milt farrow said the complaint will be investigated though the esti mation of 20 feet is a little hard to believe to say the least farrow said toronto airways operator of the airport is doing what it can to minimize noise complaints and restrict night flying the airport has also asked residents to register noise complaints by calling 47781 13 sofar the number of complaints has been small said david rogers a committee member apart from flights after 11 pm when the airports control tower is vacant observers believe many of the complaints concern pilots flying a set training pattern around buttonville which requires them- to turn and accelerate over both towns from a height of 500 feet a richmond hill noise study this summer is the first step toward raising the minimum flight height in the town to 1000 feet said councillor david cohen a plane gliding at 1000 feet produces six decibels of sound about as much as a pass ing car but one accelerating produces 75 decibels sounding five times as loud he said the height of an airplane overhead is hard to judge especially at night several committee members stressed how do you know how high the plane is flying if you cant see it asked markham councillor david allison who said markham awaits results from the richmond hill study toronto airways met for negotiations earlier this week with board members of the greater toronto airports authority operators of pearson international the talks are intended to find a way to secure the financial future of buttonville whose 15 millionayear provin cial subsidy has expired