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The Aviation DataBase ® By Aviation DataSource, Inc. Activity over the last three weeks Mon January 27 February 3 February 10 Tues January 28 February 4 February 11 Wed January 29 February 5 February 12 Thur January 30 February 6 February 13 Friday January 31 February 7 February 14 Recent Emergency ADs (Priority Letters and Telegrams) 2020-01-55 (01/17/20) General Electric Company Model GE90-110B1 and GE90-115B Turbofan Engines 2019-25-55 (12/13/19) Boeing Model 737-300, -400 and -700 Series Airplanes 2019-21-51 (10/23/19) General Electric Company Model GE90-115B Turbofan Engines 2019-10-51 (05/16/19) Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 Helicopters 2019-08-51 (04/18/19) Cirrus Design Corporation Model SF50 Airplanes 2018-23-52 (11/08/18) Leonardo S.p.A. Models AW169 and AW189 helicopters 2018-23-51 (11/07/18) The Boeing Company Models 737-8 and 737-9 airplanes 2018-16-51 (07/26/18) Bell Helicopter Textron Canada Model 429 Helicopters Supersedes 2018-15-51 2018-15-51 (07/20/18) Bell Helicopter Textron Canada Model 429 Helicopters 2018-09-51 (04/20/18) CFM International, S.A. Model CFM56 Series Engines 2018-06-51 (03/19/18) Agusta S.p.A. Model A109A, A109A II, A109C, A109E, A109K2, A109S, A119 and AW119 MKII helicopters 2017-21-51 (10/12/17) Engine AllianceModel GP7200 Series Turbofan Engines 2017-05-51 (03/03/17) Bell Helicopter Textron Canada Model 429 Helicopters 2017-04-51 (02/08/17) Safran Helicopter Engines, S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S and 1S1 turboshaft engines 2017-02-51 (01/13/17) Sikorsky Aircraft Corporation Model S-92A Helicopters Prior Years Emergency ADs (Priority Letters and Telegrams) 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2004-2005 2003 2002 2001 2000 1999 1998 Aviation Data Source, Inc. Phone: (800) 952-8844; E-Mail: AirBase@AirResearch.com  The Aviation DataBase is a registered trademark of Aviation DataSource, Inc. Copyright 1992 - 2020. Aviation DataSource, Inc. All Rights Reserved.