# NTSB investigations: Continental IO-520 series: In flight encounter with weather NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 1 of 3 · 123 cases ## Latest cases - [NTSB NYC08LA008](https://openairdocs.org/ntsb/NYC08LA008.md): Beech D55 · St.Croix · Accident · 1 fatal · Limited investigation · Final report · Oct 7, 2007 · N100UC · Destroyed > The non-instrument rated pilot's decision to continue VFR flight into IMC conditions subsequently leading to a loss of control. Contributing to the accident was the pilot's lack of instrument experience, the weather conditions, and the night lighting… - [NTSB SEA07LA118](https://openairdocs.org/ntsb/SEA07LA118.md): Beech V35B · Kayenta, AZ · Accident · Serious injuries · Limited investigation · Final report · May 2, 2007 · N3210L · Substantial damage > The overstress separation of both ruddervators during cruise flight. Contributing to the accident was the flight's encounter with turbulence. - [NTSB ATL07FA040](https://openairdocs.org/ntsb/ATL07FA040.md): Beech A36 · Hinesville, GA · Accident · 4 fatal · Field investigation · Final report · Feb 9, 2007 · N506BC · Substantial damage > The pilot's failure to maintain aircraft control resulting in the in-flight breakup of the airplane due to aerodynamic overload. Contributing to the accident were airframe icing and the pilot's impairment by illegal drugs. - [NTSB LAX07LA065](https://openairdocs.org/ntsb/LAX07LA065.md): Beech A36 · Lake Hughes, CA · Accident · Serious injuries · Limited investigation · Final report · Dec 27, 2006 · N4598S · Substantial damage > The pilot's inadequate preflight planning/preparation and attempted flight into known adverse weather during cruise, and his failure to maintain an adequate airspeed margin that resulted in a stall/spin. Turbulence was a factor. - [NTSB ANC07LA003](https://openairdocs.org/ntsb/ANC07LA003.md): Cessna 207 · Tuntutuliak, AK · Accident · Minor injuries · Limited investigation · Final report · Oct 13, 2006 · N7336U · Substantial damage > The pilot's misjudgment of distance/altitude during the landing approach, which resulted in an undershoot and in-flight collision with a river embankment. Factors contributing to the accident were reduced visibility due to rain and mist. - [NTSB LAX06LA249](https://openairdocs.org/ntsb/LAX06LA249.md): Beech V35B · Independence, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 28, 2006 · N346D · Substantial damage > the pilot's inadequate preflight and in-flight planning regarding the selection of the altitude and route of flight, which resulted in a collision with terrain in a box canyon after encountering mountain wave. - [NTSB NYC06CA177](https://openairdocs.org/ntsb/NYC06CA177.md): Beech A36 · Somerville, NJ · Accident · No injuries · Data collection · Final report · Jul 16, 2006 · N5363P · Substantial damage > The pilot's continued flight into known adverse weather. - [NTSB ANC06CA088](https://openairdocs.org/ntsb/ANC06CA088.md): Cessna 206F · Fairbanks, AK · Accident · No injuries · Data collection · Final report · Jul 12, 2006 · N8440Q · Substantial damage > The pilot's inadequate weather evaluation, which resulted in the airplane encountering a severe downdraft during takeoff initial climb, and an in-flight collision with terrain. Factors associated with the accident were a thunderstorm and a downdraft. - [NTSB LAX06FA130](https://openairdocs.org/ntsb/LAX06FA130.md): Beech F33A · Kingman, AZ · Accident · 2 fatal · Field investigation · Final report · Mar 20, 2006 · N41PT · Destroyed > The noninstrument rated pilot's cruise flight into instrument meteorological conditions, and his failure to maintain control of the airplane, which resulted in an uncontrolled descent, and an in-flight collision with terrain. Factors associated with the… - [NTSB DFW06LA073](https://openairdocs.org/ntsb/DFW06LA073.md): Beech V35 · San Antonio, TX · Accident · No injuries · Limited investigation · Final report · Feb 20, 2006 · N510LM · Substantial damage > The pilot's loss of control while on approach to the runway. Contributing factors were the downdraft and the lack of suitable terrain for the off-airport landing. - [NTSB DEN06FA001](https://openairdocs.org/ntsb/DEN06FA001.md): Beechcraft V35B · Barnum, WY · Accident · 2 fatal · Field investigation · Final report · Oct 4, 2005 · N9085Q · Destroyed > the pilot's improper in-flight planning and decision to continue flight into forecasted icing conditions and the pilot's inability to maintain aircraft control due to wing contamination in the form of ice. Contributing factors included the weather conditions… - [NTSB ATL05FA148](https://openairdocs.org/ntsb/ATL05FA148.md): Beech A36 · Jamestown, TN · Accident · 2 fatal · Field investigation · Final report · Aug 17, 2005 · N1824W · Destroyed > The pilot's decision to continue flight into an area of known thunderstorm activity, which resulted in loss of aircraft control and collision with trees and the ground during the result uncontrolled descent. - [NTSB ATL05FA142](https://openairdocs.org/ntsb/ATL05FA142.md): Beech V35B · Ellijay, GA · Accident · 1 fatal · Field investigation · Final report · Aug 8, 2005 · N1212V · Destroyed > The pilot's continued cruise flight under visual flight rules into known adverse weather, which resulted in his loss of control of the airplane due to spatial disorientation, and an uncontrolled descent and collision with terrain. A factor associated with the… - [NTSB DEN05CA116](https://openairdocs.org/ntsb/DEN05CA116.md): Cessna 210E · Saratoga, WY · Accident · No injuries · Data collection · Final report · Jul 29, 2005 · N2361F · Substantial damage > the pilot's failure to maintain aircraft control and the pilot's improper preflight planning/preparation. Contributing factors include the pilot's failure to maintain airspeed resulting in an inadvertent stall/mush, the pilot's failure to calculate a weight… - [NTSB ANC05LA027](https://openairdocs.org/ntsb/ANC05LA027.md): Cessna U206 · Port Alsworth, AK · Accident · 3 fatal · Limited investigation · Final report · Feb 9, 2005 · N206AR · Substantial damage > The pilot's continued VFR flight into instrument meteorological conditions (IMC), his improper in-flight planning and decision making, and his failure to maintain clearance from terrain while maneuvering to reverse direction at a low altitude. Factors… - [NTSB LAX05FA034](https://openairdocs.org/ntsb/LAX05FA034.md): Beech A36 · Lake Havasu, CA · Accident · 2 fatal · Field investigation · Final report · Nov 14, 2004 · N6111C · Destroyed > the pilot's continued visual flight into instrument meteorological conditions leading to spatial disorientation and an in-flight loss of control. - [NTSB ATL05FA008](https://openairdocs.org/ntsb/ATL05FA008.md): Beech F33A · Flat Rock, NC · Accident · 1 fatal · Field investigation · Final report · Oct 23, 2004 · N18303 · Substantial damage > The pilot experienced spatial disorientation, which resulted in a loss of control and the subsequent collision with the ground. Factors were low ceilings and fog. - [NTSB SEA04GA192](https://openairdocs.org/ntsb/SEA04GA192.md): Cessna U206G · Essex, MT · Accident · 3 fatal · Final report · Sep 20, 2004 · N206SM · Destroyed > The pilot's misidentification of the airplane's location, which resulted in his improper decision to fly into the wrong drainage, and his failure to maintain terrain clearance while executing a turn to reverse course after he realized his navigational error.… - [NTSB SEA04FA190](https://openairdocs.org/ntsb/SEA04FA190.md): Cessna U206F · Stanley, ID · Accident · 1 fatal · Field investigation · Final report · Sep 14, 2004 · N20GV · Substantial damage > The pilot's inadequate in-flight planning/decision which resulted in VFR flight into IMC, and his failure to maintain aircraft control. - [NTSB SEA04FA169](https://openairdocs.org/ntsb/SEA04FA169.md): Cessna A185F · Toutle, WA · Accident · 1 fatal · Field investigation · Final report · Aug 21, 2004 · N7562Q · Destroyed > The pilot's continued flight into known adverse weather conditions. Inadequate preflight planning/preparation, trees, a low ceiling and no suitable terrain available for the landing were factors. - [NTSB SEA04FA088](https://openairdocs.org/ntsb/SEA04FA088.md): Cessna A185F · Molalla, OR · Accident · 1 fatal · Field investigation · Final report · May 19, 2004 · N61611 · Destroyed > The pilot's inadequate in-flight planning/decision which resulted in VFR flight into IMC, and his failure to maintain control. Factors include mountain obscuration, clouds and convective weather conditions. - [NTSB FTW04FA079](https://openairdocs.org/ntsb/FTW04FA079.md): Cessna 210N · Valley Spring, TX · Accident · 1 fatal · Field investigation · Final report · Feb 22, 2004 · N6175Y · Destroyed > The pilot's continued flight into known adverse weather and failure to maintain control of the airplane while maneuvering in instrument meteorological conditions, due to spatial disorientation. - [NTSB FTW04FA052](https://openairdocs.org/ntsb/FTW04FA052.md): Bellanca 17-30A · Dallas, TX · Accident · 2 fatal · Field investigation · Final report · Jan 1, 2004 · N4104B · Destroyed > The failure of flight/navigation instruments while in instrument meteorological conditions (in-cloud flight and low ceilings) resulting in spatial disorientation. A contributing factors was the prevaling instrument meteorological conditions (low ceiling and… - [NTSB SEA03FA165](https://openairdocs.org/ntsb/SEA03FA165.md): Cessna 320D · Mazama, WA · Accident · 2 fatal · Field investigation · Final report · Apr 17, 2003 · N4178T · Substantial damage > The pilot's failure to maintain clearance from terrain while maneuvering. Mountainous terrain, trees and mountain obscuration were factors. - [NTSB CHI03FA094](https://openairdocs.org/ntsb/CHI03FA094.md): Beech A36 · New Vienna, IA · Accident · 3 fatal · Field investigation · Final report · Mar 28, 2003 · N1636W · Destroyed > The improper planning/decision by the pilot to fly into forecast icing conditions with an airplane not equipped with a certified deice system. The continued flight in known icing conditions and the flight to an alternate destination not performed by the pilot… - [NTSB MIA03FA068](https://openairdocs.org/ntsb/MIA03FA068.md): Beech 36 · Captiva Island, FL · Accident · 1 fatal · Field investigation · Final report · Feb 28, 2003 · N41VK · Destroyed > The pilot's VFR flight into instrument meteorological conditions and his ensuing failure to maintain altitude/clearance resulting in an in-flight collision with the ocean. A factor was the fog. - [NTSB ATL03LA046](https://openairdocs.org/ntsb/ATL03LA046.md): Beech A36 · Morristown, TN · Accident · Minor injuries · Limited investigation · Final report · Feb 18, 2003 · N100DA · Substantial damage > The pilot's inadequate preflight planning/decision to initiate flight into known adverse weather conditions, resulting in the in-flight encounter with weather and subsequent in-flight collision with terrain. A factor was airplane performance deteriorated due… - [NTSB ATL03LA028](https://openairdocs.org/ntsb/ATL03LA028.md): Cessna 172F · Stuart, FL · Accident · No injuries · Limited investigation · Final report · Dec 31, 2002 · N5338R · Substantial damage > The pilot's inflight encounter with wind shear on final approach, which resulted in an inflight loss of control and subequent uncontrolled descent into trees. - [NTSB FTW03FA057](https://openairdocs.org/ntsb/FTW03FA057.md): Cessna 210L · Harrison, AR · Accident · 1 fatal · Field investigation · Final report · Dec 4, 2002 · N210CT · Destroyed > The pilot's failure to maintain control of the aircraft and the exceedance of the manufactured limits, which resulted in an in flight break-up. Contributing factors were the dark night conditions and the clouds. - [NTSB FTW03FA048](https://openairdocs.org/ntsb/FTW03FA048.md): Beech A36 · Salem, UT · Accident · 2 fatal · Field investigation · Final report · Nov 25, 2002 · N367T · Destroyed > The pilot's inadequate inflight planning/decision to continue flight from visual to instrument meteorological conditions, which resulted in his failure to maintain clearance from terrain while in cruise flight. A low ceiling, obscuration, mountainous terrain… - [NTSB DEN02GA102](https://openairdocs.org/ntsb/DEN02GA102.md): Cessna A185F · Howard, CO · Accident · 1 fatal · Final report · Sep 4, 2002 · N24GS · Destroyed > the pilot's failure to maintain clearance of the terrain. Contributing factors were the clear air turbulent weather condition, and the high density altitude condition. - [NTSB IAD02FA075](https://openairdocs.org/ntsb/IAD02FA075.md): Beech S-35 · Clear Spring, MD · Accident · 1 fatal · Field investigation · Final report · Jul 26, 2002 · N5761K · Destroyed > The pilot's continued visual flight into instrument meteorological conditions, which resulted in an in-flight collision with rising terrain. Factors included dense fog and mountainous terrain. - [NTSB MIA02FA102](https://openairdocs.org/ntsb/MIA02FA102.md): Beech F33A · Conway, SC · Accident · 1 fatal · Field investigation · Final report · May 29, 2002 · N858KS · Destroyed > The failure of the pilot to request in-flight weather avoidance assistance and his poor in-flight planning/decision for flying into a Level 5 thunderstorm resulting in an in-flight loss of control, uncontrolled descent, and subsequent in-flight collision with… - [NTSB ANC02LA039](https://openairdocs.org/ntsb/ANC02LA039.md): Cessna 185 · Talkeetna, AK · Accident · No injuries · Limited investigation · Final report · May 25, 2002 · N80994 · Substantial damage > The pilot's inadequate evaluation of weather conditions, which precipitated an in-flight loss of control and subsequent collision with terrain. A factor contributing to the accident was the tailwind. - [NTSB ANC02FA014](https://openairdocs.org/ntsb/ANC02FA014.md): Cessna 206 · Bethel, AK · Accident · 1 fatal · Field investigation · Final report · Feb 4, 2002 · N756HL · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions, and his failure to maintain adequate ground clearance, which resulted in an in flight collision with terrain. Factors associated with the accident were flat light conditions, and… - [NTSB CHI02LA070](https://openairdocs.org/ntsb/CHI02LA070.md): Bellanca 17-30A · Alexandria, MN · Accident · 2 fatal · Limited investigation · Final report · Jan 27, 2002 · N4002B · Destroyed > The pilot's disregard of the weather evaluation and his attempt to fly into known adverse weather without an instrument rating. Factors in the accident were the low ceiling, the low visibility, and the icing conditions. - [NTSB DEN01LA091](https://openairdocs.org/ntsb/DEN01LA091.md): Bellanca BL17-30 · Columbus, NM · Accident · No injuries · Limited investigation · Final report · Apr 26, 2001 · N6671V · Substantial damage > The impact with terrain following an inadvertent stall/mush by the pilot during a go-around. A contributing factor was a dust devil. - [NTSB ANC00FA024](https://openairdocs.org/ntsb/ANC00FA024.md): Cessna U206G · Iliamna, AK · Accident · 6 fatal · Field investigation · Final report · Feb 5, 2000 · N756HG · Destroyed > The pilot's attempted flight into adverse weather, and his failure to maintain altitude/clearance above the snow-covered tundra. Factors associated with the accident were snow, rain, and whiteout conditions. - [NTSB ANC00FA018](https://openairdocs.org/ntsb/ANC00FA018.md): Cessna 207 · Bethel, AK · Accident · 6 fatal · Field investigation · Final report · Dec 7, 1999 · N1747U · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions. Factors associated with the accident were low ceilings, fog, and snow-covered terrain. - [NTSB ANC00LA008](https://openairdocs.org/ntsb/ANC00LA008.md): Cessna 207 · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Oct 27, 1999 · N207SE · Substantial damage > The pilot's inadequate evaluation of the weather, and his decision to initiate flight into adverse weather conditions. Factors in the accident were adverse weather consisting of low ceilings and icing conditions, inadequate supervision by company management,… - [NTSB ANC99LA147](https://openairdocs.org/ntsb/ANC99LA147.md): Cessna 185F · Pilot Point, AK · Accident · No injuries · Limited investigation · Final report · Sep 19, 1999 · N60859 · Substantial damage > The pilot's inadequate compensation for wind conditions. Factors in the accident were the pilot's inadequate evaluation of the weather conditions, a downdraft, and swampy terrain. - [NTSB ANC99LA118](https://openairdocs.org/ntsb/ANC99LA118.md): Cessna 206 · Anaktuvuk Pass, AK · Accident · No injuries · Limited investigation · Final report · Aug 22, 1999 · N5446X · Substantial damage > The pilot's continued flight into adverse weather conditions after becoming lost/disoriented. Factors in the accident were rising terrain, a blind/box canyon, and weather conditions consisting of clouds, rain, and fog. - [NTSB DEN99FA093](https://openairdocs.org/ntsb/DEN99FA093.md): Beech V35A · Nederland, CO · Accident · 1 fatal · Field investigation · Final report · Jun 5, 1999 · N68VT · Destroyed > The pilot's intentional and continued flight into instrument meteorological conditions. Factors were his failure to obtain a weather briefing, the existing weather conditions that included snow, hail, obscuration and lightning, and the mountainous terrain. - [NTSB ANC99LA023](https://openairdocs.org/ntsb/ANC99LA023.md): Cessna 207 · Chevak, AK · Accident · No injuries · Limited investigation · Final report · Jan 12, 1999 · N19TA · Substantial damage > The pilot's continued flight into adverse weather conditions. Factors associated with the accident were freezing rain, an accumulation of ice on the wings and ailerons, and diminished directional control. - [NTSB ANC98LA108](https://openairdocs.org/ntsb/ANC98LA108.md): Cessna 206 · Anchorage, AK · Accident · Minor injuries · Limited investigation · Final report · Jul 23, 1998 · N206F · Substantial damage > The pilot's delay in aborting the takeoff prior to reaching the end of the lake. A factor associated with the accident was a downdraft. - [NTSB ANC98LA103](https://openairdocs.org/ntsb/ANC98LA103.md): Cessna 206 · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Jul 19, 1998 · N7370N · Substantial damage > The pilot's inadequate compensation for wind conditions, and inadequate clearance from mountainous terrain. Factors were the downslope winds and downdrafts. - [NTSB ANC98LA060](https://openairdocs.org/ntsb/ANC98LA060.md): Cessna U206 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · May 30, 1998 · N414UJ · Substantial damage > The pilot's inadequate compensation for wind conditions. Factors associated with the accident are variable winds, and windshear. - [NTSB ANC98LA057](https://openairdocs.org/ntsb/ANC98LA057.md): Cessna 206 · Tyonek, AK · Accident · Minor injuries · Limited investigation · Final report · May 27, 1998 · N5297U · Substantial damage > The pilot's continued flight into adverse weather conditions, and his inadequate in-flight planning/decision. Factors in the accident were weather conditions consisting of a mountain wave, and downdrafts. - [NTSB ANC98GA036](https://openairdocs.org/ntsb/ANC98GA036.md): Cessna 185F · Nightmute, AK · Accident · 2 fatal · Final report · Apr 9, 1998 · N5485R · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions which resulted in spatial disorientation and subsequent loss of aircraft control. Factors in the accident were meteorological conditions consisting of low ceilings, and blowing snow,… - [NTSB FTW98LA176](https://openairdocs.org/ntsb/FTW98LA176.md): Cessna P206B · Riverton, WY · Accident · Serious injuries · Limited investigation · Final report · Apr 7, 1998 · N4728F · Destroyed > continued flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude from terrain, while manuevering to reverse direction. Related factors were: the adverse weather conditions, mountainous terrain, and… Next page: https://openairdocs.org/ntsb.md?engine=17032&occurrence=240&page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 240)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=17032&occurrence=240 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.