Cessna preparing ACAS and Mode-S service bulletins | Aviation International News

Cessna preparing ACAS and Mode-S service bulletins

Citation operators this summer can expect to receive Service Bulletins to address European TCAS/ ACAS and upgraded mode-S transponder requirements going in

By Gordon Gilbert • Contributor - Accidents and Regulations

March 16, 2007

Citation operators this summer can expect to receive Service Bulletins to address European TCAS/ ACAS and upgraded mode-S transponder requirements going into effect early next year.

Starting next January 1, turbine airplanes with an mtow exceeding 12,500 pounds or having between 19 and 30 passenger seats must have traffic alert collision avoidance systems installed, specifically ACAS II (TCAS II with Change 7). About three months later, on March 31, next year, upgraded mode-S elementary surveillance transponders which contain an aircraft registration ID number downlink, will be required on all turbine airplanes–regardless of weight–for operations in European Civil Aviation Conference (ECAC) airspace. These requirements apply in this airspace regardless of the country of aircraft registration.

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