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Canada wants tougher helicopter gearbox rules

from Aviation Week

Canada's Transportation Safety Board is recommending changes to helicopter gearbox design and certification standards following the fatal March 2009 crash of a Sikorsky S-92A off the coast of Newfoundland. The board wants certification rules changed to require all S-92As to be able to fly for 30 min. after the loss of main gearbox oil, and for the FAA to assess whether a 30-min. run-dry requirement is adequate for rotorcraft operating in extreme environments. more


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