Related by context. Frequent words. (Click for all words.) 61 NTSB 60 Hersman 58 Chairman Mark Rosenker 57 Sumwalt 53 Dittemore 52 Transportation Safety 50 gusset plates 49 member Kitty Higgins 48 Interstate #W bridge 48 Debbie Hersman 48 Chealander 47 spokesman Les Dorr 47 Goglia 47 FAA 47 #W bridge 47 Oberstar 46 Sturgell 46 FAA Administrator 45 Federal Aviation Administration 45 Randy Babbitt 45 Castelveter 44 Gehman 44 fatigue cracks 44 gussets 43 NTSB investigator 42 Babbitt 42 Marraccini 42 Catoe 42 AAIB 42 Scovel 41 Secretary Ray LaHood 41 Jim Oberstar 41 Gerstenmaier 40 Melonas 40 John Goglia 40 flight recorders 40 ATSB 40 Biehler 40 Fossett 40 LeRoy Cain 40 spokeswoman Kathleen Bergen 40 LaHood 40 Blakey 40 Pitot tubes 40 Colgan Air 39 structurally deficient 39 steel truss 39 James Oberstar 39 Columbia Accident Investigation 39 Peter Knudson 39 Magliari 39 Tony Molinaro 39 Paulison 39 Piringer 39 spokeswoman Amy Kudwa 39 Commissioner Jacques Barrot 39 Molnau 39 Chertoff 38 MnDOT 38 Pesaturo 38 Rutan 38 mechanical malfunction 38 Perminov 38 Renuart 38 Sullenberger 38 airworthiness directive 38 Minister Dominique Bussereau 38 Waldock 38 Sean O'Keefe 38 Amorello 38 Safety Administration 38 runway incursions 37 fatal crashes 37 Roehrkasse 37 International Luge Federation 37 CEO Doug Steenland 37 Comair Flight 37 Bair 37 NHTSA 37 Aridi 37 recorders 37 Naikuni 37 Grabauskas 37 Schuchat 37 spokesman Ian Gregor 37 Rae Tyson 37 Trippler 37 Conry 37 sightseeing helicopter 37 structurally deficient bridges 37 NPRM 36 Steve Fossett 36 Sully Sullenberger 36 Jean Cyril Spinetta 36 Marion Blakey 36 Air Accidents Investigation 36 Knudson 36 Swindal 36 Lidle 36 Ebersol 36 Commissioner Doug Shulman