National Transportation Safety Board -- Oct 2010 Aviation Accidents


Report(s) Status
(Published)
Probable Cause Released Location Make / Model Regist. Number NTSB No. Event Severity Type of Air Carrier Operation and Carrier Name (Doing Business As)
Friday, October 01, 2010
Probable Cause (03/16/2011) 03/16/2011 Chena Hot Springs, AK PIPER PA-12 N4166M ANC11CA001 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Nappanee, IN GINGERICH ALTON & SLAGEL DEAN CHRISTAVIA MK 1 N9049S CEN11CA002 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 St. Johns, MI CESSNA 310J N3051L CEN11CA003 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Wabash, IN CESSNA 172N N2140E CEN11CA004 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Sparta, MI CESSNA 182Q N759BJ CEN11CA025 Nonfatal Part 91: General Aviation
Probable Cause (05/16/2011) 05/16/2011 Magnolia, AR MAULE MXT-7-180A N152HS CEN11LA005 Nonfatal Part 91: General Aviation
Probable Cause (05/16/2011) 05/16/2011 Lake City, SC FLEET 16B N8742 ERA11CA002 Nonfatal Part 91: General Aviation
Probable Cause (06/22/2011) 06/22/2011 Manteo, NC CESSNA 550 N262Y ERA11FA001 Nonfatal Part 91: General Aviation
Probable Cause (06/22/2011) 06/22/2011 Teterboro, NJ GULFSTREAM AEROSPACE G-IV N923CL ERA11IA006 Incident Part 91: General Aviation
Probable Cause (11/29/2011) 11/29/2011 Jackson, GA YOST EDWIN S GLASAIR SH-2 N2117S ERA11LA003 Nonfatal Part 91: General Aviation
Probable Cause (11/29/2011) 11/29/2011 Edison, GA GRUMMAN G164 N48417 ERA11LA011 Nonfatal Part 137: Agricultural
Saturday, October 02, 2010
Probable Cause (03/16/2011) 03/16/2011 Minto Flats, AK CESSNA 170B N2792C ANC11CA002 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Central City, KS Kevin Wilkinson Easy Eagle 1 N44KW CEN11CA016 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Midland, TX CESSNA 195 N4666T CEN11CA019 Nonfatal Part 91: General Aviation
Foreign (10/04/2010) Amsterdam, Netherlands BOEING 737 DCA11WA001 Incident
Foreign (10/07/2010) Nazca, Peru CESSNA 185 ERA11WA004 Fatal(6)
Probable Cause (12/20/2010) 12/20/2010 Salem, OR CESSNA 172N N545DS WPR11CA008 Nonfatal Part 91: General Aviation
Sunday, October 03, 2010
Probable Cause (01/25/2012) 01/25/2012 Durango, CO CESSNA 172D N2593 CEN11LA001 Nonfatal Part 91: General Aviation
Foreign (10/04/2010) Bristol, United Kingdom BOEING 767 DCA11WA002 Unavailable
Foreign (11/05/2010) Buenos Aires, Argentina PIPER PA38 ERA11WA041 Fatal(2)
Probable Cause (10/04/2012) 10/04/2012 Avalon, CA CESSNA 310 N310XX WPR11FA002 Nonfatal Part 91: General Aviation
Monday, October 04, 2010
Probable Cause (03/16/2011) 03/16/2011 Taylorsville, KY AERONCA 11AC N85888 ERA11CA007 Nonfatal Part 91: General Aviation
Probable Cause (02/09/2012) 03/16/2011 New York, NY BOMBARDIER INC CL-600-2B19 N414ZW ERA11CA010 Nonfatal SCHD Part 121: Air Carrier Air Wisconsin Airlines Corporations (D.B.A. US Airways Express)
Tuesday, October 05, 2010
Probable Cause (03/16/2011) 03/16/2011 Texarkana, AR ROCKWELL INTERNATIONAL S-2R N8432V CEN11CA006 Nonfatal Part 137: Agricultural
Probable Cause (12/19/2011) 12/19/2011 Columbia, SC CESSNA 182P N21415 ERA11LA009 Nonfatal Part 91: General Aviation
Foreign (10/15/2010) Nassau, Bahamas CESSNA 402 ERA11WA008 Fatal(9)
Wednesday, October 06, 2010
Probable Cause (10/04/2012) 10/04/2012 Naperville, IL PIPER PA-32R-300 N3402Q CEN11FA007 Nonfatal Part 91: General Aviation
Probable Cause (10/03/2011) 10/03/2011 Springfield, MO GRUMMAN AMERICAN AVIATION CORP AA-5A N9695U CEN11FA008 Fatal(1) Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Titusville, FL SCHWEIZER 269C-1 N2074B ERA11CA012 Nonfatal Part 91: General Aviation
Thursday, October 07, 2010
Probable Cause (11/29/2011) 11/29/2011 Richmond, IN PIPER PA-32R-300 N38205 CEN11CA015 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Louisville, KY PIPER PA28 N57302 ERA11CA013 Nonfatal Part 91: General Aviation
Friday, October 08, 2010
Probable Cause (03/16/2011) 03/16/2011 Humphrey, AR CESSNA 175C N8323T CEN11CA011 Nonfatal Part 91: General Aviation
Probable Cause (06/13/2011) 06/13/2011 Easton, KS NEWMANN EDWARD W CHALLENGER II N61328 CEN11LA012 Fatal(1) Part 91: General Aviation
Preliminary (10/25/2010) Panguitch, UT CESSNA 172 N8437A WPR11FA005 Fatal(2) Part 91: General Aviation
Probable Cause (05/26/2011) 05/26/2011 Scappoose, OR ROBINSON R22 N2356T WPR11LA003 Nonfatal Part 91: General Aviation
Probable Cause (08/07/2012) 08/07/2012 Blue Diamond, NV BEECH A35 N8402A WPR11LA004 Fatal(1) Part 91: General Aviation
Saturday, October 09, 2010
Probable Cause (04/12/2011) 04/12/2011 Mount Vernon, MO AERONCA 7AC N81412 CEN11CA039 Nonfatal Part 91: General Aviation
Probable Cause (07/21/2011) 07/21/2011 Lawrenceville, GA ENGINEERING & RESEARCH ERCOUPE 415-D N89331 ERA11LA014 Fatal(1) Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Valley, WA PIPER PA-12 N2971M WPR11CA007 Nonfatal Part 91: General Aviation
Sunday, October 10, 2010
Probable Cause (03/16/2011) 03/16/2011 Lonsdale, MN MARTIN CURTIS ZENAIR CH701 SP N157SB CEN11CA010 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Farmington, NM CESSNA 180 N9277C CEN11CA026 Nonfatal Part 91: General Aviation
Foreign (10/12/2010) Seoul, Korea, Republic Of BOEING 747 ENG11RA001 Incident
Probable Cause (10/14/2011) 03/16/2011 Gransonville, MD Evolution Revo N611TX ERA11CA045 Nonfatal Part 91: General Aviation
Probable Cause (12/13/2011) 12/13/2011 Boynton Beach, FL CESSNA 172SP N423FT ERA11LA015 Nonfatal Part 91: General Aviation
Probable Cause (05/16/2011) 05/16/2011 Portland, OR CESSNA 172 N738GN WPR11LA012 Nonfatal Part 91: General Aviation
Probable Cause (10/04/2012) 10/04/2012 Blanding, UT BEECH C24 N5063M WPR11LA013 Nonfatal Part 91: General Aviation
Monday, October 11, 2010
Probable Cause (03/16/2011) 03/16/2011 Clarrisa, MN LUSCOMBE 8D N72060 CEN11CA017 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Michigan, ND GRUMMAN G-164 N554Y CEN11CA071 Nonfatal Part 137: Agricultural
Probable Cause (06/08/2011) 06/08/2011 Fowlerville, MI Drake Ronald A Acro Sport 1 N53DB CEN11LA014 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Falls Village, CT CESSNA 120 N89603 ERA11CA017 Nonfatal Part 91: General Aviation
Tuesday, October 12, 2010
Foreign (11/15/2013) Kabul, Afghanistan LOCKHEED L-100 DCA11WA003 Fatal(8) NSCH Non-U.S., Commercial Trans Afrique Airlines
Probable Cause (03/16/2011) 03/16/2011 Leesburg, FL LONG EZ N539AD ERA11CA018 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Long Beach, CA ROBINSON HELICOPTER R22 BETA N853DS WPR11CA011 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Palm Springs, CA BOEING A75N1(PT17) N66940 WPR11CA014 Nonfatal Part 91: General Aviation
Wednesday, October 13, 2010
Probable Cause (04/12/2011) 04/12/2011 Fredericksburg, TX CONRAD THEODORE J THORP T-18 N86TJ CEN11CA030 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Newton, TX BELL 206B N499BH CEN11LA023 Nonfatal Part 137: Agricultural
Probable Cause (06/08/2011) 06/08/2011 New Smyrna Beach, FL MOONEY M20E N5743Q ERA11CA020 Nonfatal Part 91: General Aviation
Thursday, October 14, 2010
Probable Cause (03/16/2011) 03/16/2011 Pagosa Springs, CO BEECH A36 N4979M CEN11CA031 Nonfatal Part 91: General Aviation
Probable Cause (06/27/2011) 06/27/2011 Burlington, WA MISCHKE BD-5B N525BD WPR11LA015 Nonfatal Part 91: General Aviation
Probable Cause (06/27/2011) 06/27/2011 Auburn, CA BELL 206B N2763M WPR11LA016 Nonfatal NSCH Part 91: General Aviation
Friday, October 15, 2010
Probable Cause (04/12/2011) 04/12/2011 Almyra, AR MAULE MXT-7-180A N125HS CEN11CA021 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Henderson, TX CESSNA 182K N3057Q CEN11CA037 Nonfatal Part 91: General Aviation
Probable Cause (03/08/2012) 03/08/2012 Clarkson Valley, MO BELL 206B N96MP CEN11GA020 Fatal(1) Part 91: General Aviation
Foreign (11/18/2010) Ensenada, Mexico BEECH A36 N212DB CEN11RA024 Fatal(4)
Foreign (10/26/2010) Malaga, Colombia CESSNA 172N ERA11WA032 Fatal(4)
Saturday, October 16, 2010
Probable Cause (03/16/2011) 03/16/2011 Merrill Field Airport, AK PIPER PA-12 N4229M ANC11CA003 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Englewood, CO SCHWEIZER 269C N20130 CEN11CA022 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Temple, TX WEDDINGTON DOUBLE EAGLE N132BE CEN11CA028 Nonfatal Part 91: General Aviation
Probable Cause (06/28/2012) 06/28/2012 Monticello, GA Newcomer RV6 N13KN ERA11LA022 Fatal(2) Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Colville, WA DEITZ AVID FLYER MK4 N169WP WPR11CA018 Nonfatal Part 91: General Aviation
Probable Cause (05/26/2011) 05/26/2011 Cottonwood, AZ LINDSTRAND BALLOONS 90A N807PW WPR11LA017 Nonfatal Part 91: General Aviation
Sunday, October 17, 2010
Probable Cause (04/12/2011) 04/12/2011 Rose Hill, KS PIPER PA-28-140 N8038N CEN11CA032 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Los Lunas, NM BORNE CHARLES A III RV-4 N353CB CEN11CA035 Nonfatal Part 91: General Aviation
Probable Cause (05/16/2011) 05/16/2011 Summner, ME CESSNA 180 N2576K ERA11CA024 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Fayetteville, WV BOEING PT17 N55464 ERA11CA035 Nonfatal Part 91: General Aviation
Probable Cause (06/08/2011) 06/08/2011 Rising Fawn, GA ANTARES MA-33M R582 N49FP ERA11CA077 Nonfatal Part 91: General Aviation
Probable Cause (01/17/2012) 01/17/2012 Farmingdale, NY SIAI-MARCHETTI S.205/22R N934W ERA11FA021 Fatal(1) Part 91: General Aviation
Probable Cause (10/03/2011) 10/03/2011 Southern Pines, NC BOBO CHRISTOPHER J LOEHLE 5151 N838B ERA11LA023 Nonfatal Part 91: General Aviation
Monday, October 18, 2010
Probable Cause (07/12/2011) 07/12/2011 Sitka, AK BEECH 1900C N111AX ANC11LA004 Nonfatal NSCH Part 135: Air Taxi & Commuter
Probable Cause (10/06/2011) 10/06/2011 Sebewaing, MI American Champion Aircraft 8KCAB N105AC CEN11FA029 Fatal(2) Part 91: General Aviation
Probable Cause (11/27/2012) 11/26/2012 Palestine, TX BEECH A100 N1TR CEN11TA027 Nonfatal Public Use
Probable Cause (03/16/2011) 03/16/2011 Titusville, FL PIPER PA28 N9247V ERA11CA027 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Hollywood, FL SQUEGLIA R/WHEELER W HUMMEL BIRD N824RS ERA11CA029 Nonfatal Part 91: General Aviation
Probable Cause (08/03/2011) 08/03/2011 Fort Lauderdale, FL SHORT BROS. & HARLAND SHORTS SC7 SKYVAN N80GB ERA11IA026 Incident Part 91: General Aviation
Probable Cause (07/21/2011) 07/21/2011 Warren, VT SCHEMPP-HIRTH VENTUS B/16.6 N188PX ERA11LA025 Nonfatal Part 91: General Aviation
Probable Cause (10/04/2012) 10/04/2012 Phoenix, AZ BOMBARDIER INC CL-600-2B19 N938SW WPR11IA019 Incident SCHD Part 121: Air Carrier SkyWest Airlines (D.B.A. United Express)
Foreign (10/28/2010) Durham Downs, Australia, Australia CESSNA 172 WPR11WA020 Fatal(2)
Tuesday, October 19, 2010
Probable Cause (04/12/2011) 04/12/2011 Mancelona, MI CESSNA 182L N808HC CEN11CA038 Nonfatal Part 91: General Aviation
Probable Cause (05/16/2011) 05/16/2011 Wells, NV CESSNA 195 C-GEMO WPR11CA028 Nonfatal Part 91: General Aviation
Wednesday, October 20, 2010
Probable Cause (03/16/2011) 03/16/2011 Breakenridge, TX HAWKER MK-20 Sea Fury C-FGAT CEN11CA059 Nonfatal Part 91: General Aviation
Probable Cause (04/12/2011) 04/12/2011 Douglas, GA BOEING A75 N63538 ERA11CA034 Nonfatal Part 91: General Aviation
Foreign (11/04/2010) Medellin, Colombia CESSNA TU206G ERA11WA031 Fatal(5)
Probable Cause (10/03/2011) 10/03/2011 Teterboro, NJ DASSAULT FALCON900EX OPS11IA054A Incident
Probable Cause (10/03/2011) 10/03/2011 Teterboro, NJ CESSNA 680 OPS11IA054B Incident
Probable Cause (10/03/2011) 10/03/2011 Teterboro, NJ CESSNA S550 OPS11IA054C Incident
Thursday, October 21, 2010
Probable Cause (11/17/2011) 11/17/2011 Clarion, IA BEECH 95-B55 (T42A) N784CB CEN11FA040 Fatal(1) Part 91: General Aviation
Probable Cause (01/17/2012) 01/17/2012 Olathe, KS PIPER PA-46-500TP N767TP CEN11IA106 Incident Part 91: General Aviation
Probable Cause (06/08/2011) 06/08/2011 Sanford, FL CIRRUS SR20 N495DA ERA11CA030 Nonfatal Part 91: General Aviation
Probable Cause (12/19/2011) 12/19/2011 Waynesboro, GA ROCKWELL INTERNATIONAL 112TC N1154J ERA11LA033 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Colville, WA Rotherwick Glasair III N471B WPR11CA022 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Fort Hunter Liggett, CA AIR TRACTOR INC AT-802 N4247U WPR11CA023 Nonfatal Part 91: General Aviation
Probable Cause (09/19/2011) 09/19/2011 Agua Dulce, CA CIRRUS DESIGN CORP SR-22 N427MC WPR11FA021 Fatal(3) Part 91: General Aviation
Friday, October 22, 2010
Probable Cause (03/16/2011) 03/16/2011 New Baden, IL McClish B85C N1611N CEN11CA033 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Fort Thomas, AZ CESSNA 185 N5011X WPR11CA024 Nonfatal Part 91: General Aviation
Saturday, October 23, 2010
Probable Cause (03/16/2011) 03/16/2011 Recklaw, TX Frederick R Goenne Glastar N2814D CEN11CA036 Nonfatal Part 91: General Aviation
Foreign (03/27/2012) New Castle, United Kingdom AGUSTA A109 N2NR CEN11WA042 Fatal(3)
Probable Cause (03/16/2011) 03/16/2011 Cambridge, MD PIPER PA-28R-200 N56101 ERA11CA052 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Camp Verde, AZ CESSNA 340A N630PL WPR11CA026 Nonfatal Part 91: General Aviation
Probable Cause (01/15/2013) 01/15/2013 Lake Mathews, CA REED GLASAIR III SH-3R N2XZ WPR11FA027 Fatal(2) Part 91: General Aviation
Probable Cause (12/27/2011) 12/27/2011 Dorrington, CA PIPER PA-28-236 N228KK WPR11LA025 Nonfatal Part 91: General Aviation
Monday, October 25, 2010
Probable Cause (05/26/2011) 05/26/2011 Presidio, TX CESSNA T210N N200WT CEN11LA034 Nonfatal Part 91: General Aviation
Probable Cause (08/07/2013) 08/07/2013 Morton, WA CESSNA 340A N68718 WPR11FA029 Fatal(3) Part 91: General Aviation
Probable Cause (10/04/2012) 10/04/2012 Lander, WY MOONEY M20J N201HF WPR11FA032 Fatal(4) Part 91: General Aviation
Tuesday, October 26, 2010
Probable Cause (09/19/2011) 09/19/2011 Miami, FL BOEING 757-223 N626AA DCA11FA004 Nonfatal SCHD Part 121: Air Carrier AMERICAN AIRLINES INC
Probable Cause (06/11/2013) 12/19/2011 Rienzi, MS BEECH B36TC N8045Y ERA11FA036 Fatal(2) Part 91: General Aviation
Wednesday, October 27, 2010
Probable Cause (11/07/2012) 11/07/2012 Seguin, TX Donegan Benton Kitfox II N8700T CEN11LA041 Fatal(1) Part 91: General Aviation
Probable Cause (07/21/2011) 07/21/2011 Aguadilla, PR PIPER PA-31-350 N350RL ERA11LA037 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Pahrump, NV PIPER PA-22-150 N7807D WPR11CA030 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Benson, AZ MEDWAY RAVEN N75784 WPR11CA033 Nonfatal Part 91: General Aviation
Thursday, October 28, 2010
Probable Cause (03/16/2011) 03/16/2011 Tampa, FL CESSNA 172P N612CB ERA11CA039 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Julian, NC PIPER PA-28-151 N44078 ERA11CA040 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Bedford, KY CESSNA 177RG N33224 ERA11CA047 Nonfatal Part 91: General Aviation
Probable Cause (06/28/2012) 06/28/2012 Aiken, SC CESSNA 210A N6655X ERA11FA038 Fatal(1) Part 91: General Aviation
Friday, October 29, 2010
Probable Cause (03/16/2011) 03/16/2011 Pearland, TX Hughes J/Hughes J Rand-Robinson N128JH CEN11CA046 Nonfatal Part 91: General Aviation
Probable Cause (04/12/2011) 04/12/2011 Oshtemo, MI AARDEMA ROBERT JOHN 1 AARDEMA RAG WNG SP N768BA CEN11CA047 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Stockport, OH COSTRUZIONI AERONAUTICHE TECNA P2004 BRAVO N619CS CEN11CA052 Nonfatal Part 91: General Aviation
Probable Cause (04/25/2013) 04/25/2013 Port Mansfield, TX PIPER PA46-500TP N234PM CEN11LA043 Nonfatal Part 91: General Aviation
Probable Cause (10/03/2011) 10/03/2011 San Angelo, TX WALKER KENNETH SONEX N234KS CEN11LA045 Nonfatal Part 91: General Aviation
Probable Cause (02/23/2012) 02/23/2012 Waterloo, IA PIPER PA-32R-301T N8370L CEN11LA048 Nonfatal Part 91: General Aviation
Probable Cause (11/17/2011) 11/17/2011 Robstown, TX CESSNA 180 N3383D CEN11LA063 Nonfatal Part 91: General Aviation
Probable Cause (07/21/2011) 07/21/2011 Hilton Head Island, SC AVIAT INC PITTS S-2B N8ZT ERA11LA043A Nonfatal Part 91: General Aviation
Probable Cause (07/21/2011) 07/21/2011 Hilton Head Island, SC CIRRUS DESIGN CORP SR22 N876CP ERA11LA043B Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Fort Lauderdale, FL BOEING 737 C-FWAQ ERA11LA044 Nonfatal SCHD Part 129: Foreign WestJet
Probable Cause (04/12/2011) 04/12/2011 Prescott, AZ ROBINSON HELICOPTER R22 BETA N844SH WPR11CA031 Nonfatal Part 91: General Aviation
Saturday, October 30, 2010
Probable Cause (05/16/2011) 05/16/2011 Grants, NM GLOBE GC-1B N3249K CEN11LA044 Nonfatal Part 91: General Aviation
Foreign (12/15/2010) Gander, Canada GULFSTREAM AEROSPACE G-IV N45AC CEN11WA081 Incident
Probable Cause (02/06/2012) 02/06/2012 Thomas, WV MD HELICOPTERS INC 369E N765WH ERA11FA042 Fatal(1) Part 133: Rotorcraft Ext. Load
Foreign (04/01/2011) Blenheim, New Zealand DE HAVILLAND DHC8 WPR11WA164 Incident
Sunday, October 31, 2010
Probable Cause (05/16/2011) 05/16/2011 Cypress, TX PIPER J3C-65 N41458 CEN11CA121 Nonfatal Part 91: General Aviation
Probable Cause (03/16/2011) 03/16/2011 Branscomb, CA CESSNA 172S N3542V WPR11CA035 Nonfatal Part 91: General Aviation