# NTSB investigations: 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 17 of 72 · 3,567 cases ## Cases, newest first - [NTSB LAX99LA280](https://openairdocs.org/ntsb/LAX99LA280.md): Piper PA-18-18 · Eagleville, CA · Accident · No injuries · Limited investigation · Final report · Aug 22, 1999 · N3356B · Substantial damage > The pilot's encounter with a thunderstorm induced downdraft, which resulted in a high rate of sink, at an altitude insufficient to provide for recovery prior to ground impact. The high density altitude was a factor in the accident. - [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 LAX99FA273](https://openairdocs.org/ntsb/LAX99FA273.md): Balloon Works Firefly 11 · Cave Creek, AZ · Accident · Serious injuries · Field investigation · Final report · Aug 19, 1999 · N7021U · Minor damage > An unforecast encounter with a low level microburst that resulted in a distortion of the balloon envelope, an excessive outflow of hot air (loss of lift), creating an excessive rate of descent that was beyond the performance capability of the balloon to… - [NTSB NYC99GA197](https://openairdocs.org/ntsb/NYC99GA197.md): Bell 407 · Georgetown, DE · Accident · Minor injuries · Final report · Aug 17, 1999 · N97SP · Destroyed > The pilot's improper preflight evaluation of the weather, which resulted in inadvertent flight into IMC. Factors were the fog, and night conditions. - [NTSB NYC99FA199](https://openairdocs.org/ntsb/NYC99FA199.md): Cessna P210N · Worcester, VT · Accident · 3 fatal · Field investigation · Final report · Aug 14, 1999 · N24CD · Destroyed > The pilot's inadequate in-flight planning/decision, his failure to follow the published instrument departure procedure for the particular runway, and his continued flight into known adverse weather. A factor was thunderstorms. - [NTSB NYC99FA198](https://openairdocs.org/ntsb/NYC99FA198.md): Cessna 210 · Mount Pocono, PA · Accident · 2 fatal · Field investigation · Final report · Aug 13, 1999 · N4827C · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions and his failure to maintain aircraft control. A related factor was the fog. - [NTSB CHI99FA290](https://openairdocs.org/ntsb/CHI99FA290.md): Piper PA-28-181 · Paw Paw, MI · Accident · 4 fatal · Field investigation · Final report · Aug 13, 1999 · N281PF · Destroyed > the pilot flew into known adverse weather, the pilot's lack of total instrument flight experience, and the pilot exceeded the design limits of the airplane. Factors included the pilot's total lack of experience in the type of operation and the pilot's… - [NTSB FTW99LA219](https://openairdocs.org/ntsb/FTW99LA219.md): Grumman American AA-5A · Wayton, AR · Accident · Serious injuries · Limited investigation · Final report · Aug 12, 1999 · N9775U · Substantial damage > The pilot's inadequate compensation for wind conditions, and his failure to maintain clearance with trees during a go-around. Factors were the gusty wind condition, and the high density altitude. Factors associated with the accident were gusty winds, and a… - [NTSB MIA99LA218](https://openairdocs.org/ntsb/MIA99LA218.md): Cessna 150G · Greeneville, TN · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 1999 · N3187X · Substantial damage > The pilot's failure to remain clear of clouds while operating under visual flight rules resulting in the aircraft colliding with trees on rising terrain as he flew in the clouds. - [NTSB ANC99FA106](https://openairdocs.org/ntsb/ANC99FA106.md): Cessna 180A · Kenai, AK · Accident · 2 fatal · Field investigation · Final report · Aug 5, 1999 · N8TL · Destroyed > The pilot's intentional visual flight into known adverse weather. Factors associated with this accident were the reported low ceilings, obscuration, high winds, and turbulence. - [NTSB FTW99LA197](https://openairdocs.org/ntsb/FTW99LA197.md): Piper PA-25-235 · Fabens, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 22, 1999 · N6736Z · Substantial damage > The pilot's inadvertent flight into adverse weather conditions. A factor was the windshear weather conditions. - [NTSB DEN99FA123](https://openairdocs.org/ntsb/DEN99FA123.md): Piper PA-32R-301T · Magdalena, NM · Accident · 2 fatal · Field investigation · Final report · Jul 19, 1999 · N22KC · Destroyed > The pilot's inadvertent flight into adverse weather and the subsequent in-flight breakup. Factors were the pilot's lack of experience in high altitude flying and the thunderstorm. - [NTSB SEA99FA126](https://openairdocs.org/ntsb/SEA99FA126.md): Cessna T-337 G-P · Snoqualmie Pass, WA · Accident · 2 fatal · Field investigation · Final report · Jul 17, 1999 · N98C · Destroyed > The pilot's failure to maintain clearance from mountainous terrain while maneuvering below low ceilings. Factors include low ceilings and inadequate in-flight planning. - [NTSB CHI99FA238](https://openairdocs.org/ntsb/CHI99FA238.md): Piper PA-28-181 · Yorkville, IL · Accident · 2 fatal · Field investigation · Final report · Jul 17, 1999 · N5054F · Destroyed > the pilot continuing into known adverse weather conditions, attempting low altitude flight, and not maintaining terrain clearance. Factors to the accident were the thunderstorm and the improper weather evaluation by the pilot following pre-departure and… - [NTSB IAD99FA052](https://openairdocs.org/ntsb/IAD99FA052.md): Boeing 737-824 · Atlantic Ocean (Atlantic Ocean) · Accident · Serious injuries · Field investigation · Final report · Jul 8, 1999 · N12221 · Minor damage > the aircrew's inadvertent encounter with unforecast clear air turbulence. - [NTSB DEN99FA114](https://openairdocs.org/ntsb/DEN99FA114.md): Cessna 182J · La Veta, CO · Accident · 2 fatal · Field investigation · Final report · Jul 6, 1999 · N3334F · Destroyed > The pilot's inadvertent flight into instrument meteorological conditions and his failure to maintain control of the aircraft. Factors were low ceiling and the pilot's lack of instrument experience. - [NTSB CHI99LA207](https://openairdocs.org/ntsb/CHI99LA207.md): Piper J-3C · Independence, IA · Accident · No injuries · Limited investigation · Final report · Jul 2, 1999 · N3371N · Substantial damage > The insufficient information from the weather forecast resulting in an in-flight encounter with turbulence/gusts and the subsequent precautionary landing. Contributing factors were the gusty/turbulent conditions and the terrain condition (crop). - [NTSB FTW99LA207](https://openairdocs.org/ntsb/FTW99LA207.md): Boeing 737-3H4 · Lafayette, LA · Accident · Serious injuries · Limited investigation · Final report · Jun 26, 1999 · N650SW · No damage > The pilot's inadvertent flight into an adverse weather condition. A factor was the turbulence. - [NTSB CHI99FA196](https://openairdocs.org/ntsb/CHI99FA196.md): Beech C-23 · Mandan, ND · Accident · 1 fatal · Field investigation · Final report · Jun 26, 1999 · N9703Q · Destroyed > the pilot failed to maintain aircraft control on approach to the airport after encountering high winds, gusts, rain, and thunderstorms in the area. - [NTSB MIA99FA188](https://openairdocs.org/ntsb/MIA99FA188.md): Beech C90 · Munson, FL · Accident · 2 fatal · Field investigation · Final report · Jun 25, 1999 · N3019W · Destroyed > The poor in-flight weather evaluation by the pilot-in-command and his operation of the airplane at an indicated airspeed greater than the design maneuvering speed (Va) in a thunderstorm contrary to the pilot's operating handbook resulting in an in-flight… - [NTSB LAX99LA228](https://openairdocs.org/ntsb/LAX99LA228.md): Let Blanik L-13 · Barstow, CA · Accident · No injuries · Limited investigation · Final report · Jun 19, 1999 · N136AS · Substantial damage > The loss of thermal lift that resulted in a forced landing and the pilot's improper glide path that resulted in a collision with a light pole. - [NTSB DEN99LA104](https://openairdocs.org/ntsb/DEN99LA104.md): Mooney M20E · Canon City, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 1999 · N9355M · Destroyed > The pilot's poor judgement due to his intentional and continued flight into instrument meteorological conditions. Factors were the existing weather conditions that included clouds and obscuration. - [NTSB FTW99LA166](https://openairdocs.org/ntsb/FTW99LA166.md): Taylorcraft F21 · Pleasanton, TX · Accident · No injuries · Limited investigation · Final report · Jun 11, 1999 · N2806W · Substantial damage > The pilot's inadvertent flight into adverse weather, which resulted in a loss of aircraft control. A factor was the whirl wind weather condition. - [NTSB ANC99LA075](https://openairdocs.org/ntsb/ANC99LA075.md): Piper PA-18 · Big Lake, AK · Accident · Serious injuries · Limited investigation · Final report · Jun 11, 1999 · N2668P · Substantial damage > The pilot's inadvertent stall during takeoff. Factors associated with the accident are wind gusts and turbulence. - [NTSB MIA99FA172](https://openairdocs.org/ntsb/MIA99FA172.md): Piper PA-28R-200 · Cape Canaveral, FL · Accident · 1 fatal · Field investigation · Final report · Jun 10, 1999 · N56192 · Destroyed > The pilot's VFR flight into Instrument meteorological conditions and his subsequent failure to maintain control of the aircraft resulting in overload and separation of both wings. Contributing factors were the pilot's failure to obtain a preflight and… - [NTSB ANC99FA073](https://openairdocs.org/ntsb/ANC99FA073.md): Eurocopter AS-350BA · Juneau, AK · Accident · 7 fatal · Field investigation · Final report · Jun 9, 1999 · N6099S · Destroyed > The pilot's continued VFR flight into adverse weather, spatial disorientation, and failure to maintain aircraft control. Factors associated with the accident were pressure by the company to continue flights in marginal weather, and the "flat" lighting leading… - [NTSB FTW99LA161](https://openairdocs.org/ntsb/FTW99LA161.md): Wsk Pzl Mielec M-18 · Dewitt, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 8, 1999 · N52401 · Substantial damage > The pilot's inadvertent flight into adverse weather, which resulted in a loss of aircraft control. A factor was the downdraft weather condition. - [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 FTW99FA150](https://openairdocs.org/ntsb/FTW99FA150.md): Grumman-Schweizer G164-B · Brinkley, AR · Accident · 1 fatal · Field investigation · Final report · May 26, 1999 · N8285K · Destroyed > The pilot's inadvertent VFR flight into instrument meteorological conditions. Contributing factors were the pilots failure to maintain control of the aircraft, spatial disorientation, and the fog. - [NTSB CHI99FA165](https://openairdocs.org/ntsb/CHI99FA165.md): Air Tractor AT-400 · Elkhart, KS · Accident · 1 fatal · Field investigation · Final report · May 25, 1999 · N400MJ · Destroyed > The pilot's inadequate in-flight planning/decision and his inadvertent flight into instrument meteorological conditions which resulted in spatial disorientation and subsequent loss of aircraft control. Contributing to the accident was the poor weather… - [NTSB LAX99LA192](https://openairdocs.org/ntsb/LAX99LA192.md): I.C.A. Brasov IS-29D2 · Tehachapi, CA · Accident · No injuries · Limited investigation · Final report · May 22, 1999 · N8217A · Substantial damage > The pilot's inability to maintain a proper glide path due to an inadvertent encounter with an area of high sink rate conditions. The mountainous/hilly nature of the terrain which limited the pilot's selection of a landing site is a factor. - [NTSB DEN99LA078](https://openairdocs.org/ntsb/DEN99LA078.md): Bell/Mason RV-6 · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · May 14, 1999 · N107BB · Substantial damage > The loss of aircraft control for undetermined reasons. Factors were the sudden wind shift and wind gusts weather condition. - [NTSB DEN99LA076](https://openairdocs.org/ntsb/DEN99LA076.md): Cessna 150M · Maybell, CO · Accident · No injuries · Limited investigation · Final report · May 8, 1999 · N6128K · Substantial damage > The pilot's inadvertent stall while maneuvering. Factors were the wind gusts weather conditions, and the high density altitude weather conditions. - [NTSB SEA99LA058](https://openairdocs.org/ntsb/SEA99LA058.md): Cessna 150G · Detroit, OR · Accident · Serious injuries · Limited investigation · Final report · May 7, 1999 · N3381J · Substantial damage > The pilot's inadvertent visual flight rules flight into instrument meteorological conditions, eventually resulting in a non-mechanical loss of engine power. Factors were: the pilot's inadequate preflight planning and preparation; a snowstorm with icing… - [NTSB CHI99LA145](https://openairdocs.org/ntsb/CHI99LA145.md): Boeing 737-222 · Chicago, IL · Accident · Serious injuries · Limited investigation · Final report · May 6, 1999 · N208AU · No damage > the flight attendants did not follow the cockpit crews instructions to be seated because of expected turbulence. A factor associated with the accident was the turbulence encountered. - [NTSB MIA99FA150](https://openairdocs.org/ntsb/MIA99FA150.md): Cessna 172 · Fontana, NC · Accident · 1 fatal · Field investigation · Final report · May 5, 1999 · N30DS · Destroyed > the pilot continued visual flight into know weather conditions which resulted in reduced visibility, and the subsequent in-flight collision with rising terrain. Factors in this accidents were clouds and low ceiling in the accident area. - [NTSB DEN99FA072](https://openairdocs.org/ntsb/DEN99FA072.md): Cessna 182B · Pagosa Springs, CO · Accident · 2 fatal · Field investigation · Final report · May 2, 1999 · N2424G · Destroyed > The pilot's disregard of the adverse weather forecast, and his flight into known adverse weather by flying into instrument meteorological conditions. Factors were the existing weather conditions that included low ceilings, obscuration, and icing conditions,… - [NTSB FTW99LA126](https://openairdocs.org/ntsb/FTW99LA126.md): Beech J35 · Bass, AR · Accident · No injuries · Limited investigation · Final report · Apr 29, 1999 · N735B · Substantial damage > The pilot's failure to maintain aircraft directional control during landing roll on a gravel road. Factors were the clouds and low ceilings, the low fuel status, and the gravel road condition. - [NTSB ATL99LA077](https://openairdocs.org/ntsb/ATL99LA077.md): Beech 23-B24R · Boone, NC · Accident · Serious injuries · Limited investigation · Final report · Apr 28, 1999 · N12RF · Destroyed > The pilots failure to obtain/maintain proper climb rate during initial climbout. This resulted in the collision with the mountain/hilly terrain. - [NTSB ATL99LA076](https://openairdocs.org/ntsb/ATL99LA076.md): Schempp-Hirth MINI-NIMBUS · Groveland, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 28, 1999 · N100GG · Substantial damage > The pilot's inability to locate a thermal and the in-flight encounter with a down draft. - [NTSB MIA99LA141](https://openairdocs.org/ntsb/MIA99LA141.md): Cessna 182K · Picayune, MS · Accident · Minor injuries · Limited investigation · Final report · Apr 23, 1999 · N2699Q · Substantial damage > The failure of the pilot to recover from the bounced landing resulting in collapse of the nose landing gear. A finding in the accident was the crosswind weather condition that existed at the time of the accident. - [NTSB FTW99FA121](https://openairdocs.org/ntsb/FTW99FA121.md): Cessna 182G · Blanco, TX · Accident · 1 fatal · Field investigation · Final report · Apr 22, 1999 · N2330R · Destroyed > The pilot's continued flight into adverse weather conditions and his failure to maintain clearance with terrain. Factors were, the low cloud and drizzle weather conditions, and the dark night light conditions. - [NTSB ANC99LA048](https://openairdocs.org/ntsb/ANC99LA048.md): Elam RAF 2000-GTX · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Apr 18, 1999 · N95WE · Substantial damage > The pilot's inadequate compensation for wind conditions. A factor associated with the accident was a downdraft. - [NTSB ANC99LA046](https://openairdocs.org/ntsb/ANC99LA046.md): Stinson 108-2 · Kenai, AK · Accident · Serious injuries · Limited investigation · Final report · Apr 14, 1999 · N221C · Substantial damage > The pilot's inadequate compensation for wind conditions. A factor associated with the accident was high winds. - [NTSB ANC99FA047](https://openairdocs.org/ntsb/ANC99FA047.md): Cessna 207A · Kotzebue, AK · Accident · 1 fatal · Field investigation · Final report · Apr 14, 1999 · N73188 · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions, spatial disorientation, and an inadvertent stall. Factors in the accident were weather conditions consisting of snow and mist, and flat lighting conditions. - [NTSB LAX99FA138](https://openairdocs.org/ntsb/LAX99FA138.md): Piper PA-32R-301 · Warner Springs, CA · Accident · 4 fatal · Field investigation · Final report · Apr 4, 1999 · N9254Q · Destroyed > The pilot disregarded his weather briefing and attempted flight into areas of forecast and reported icing and moderate to severe turbulence. The airplane encountered mountain wave activity resulting in an overload condition and in-flight separation of the… - [NTSB LAX99FA137](https://openairdocs.org/ntsb/LAX99FA137.md): Mbb B0-105CBS-4 · Indian Springs, NV · Accident · 3 fatal · Field investigation · Final report · Apr 4, 1999 · N105HH · Destroyed > the pilot's decision to continue VFR flight in deteriorating IFR conditions resulting in spatial disorientation and subsequent loss of control. - [NTSB FTW99FA104](https://openairdocs.org/ntsb/FTW99FA104.md): Piper PA-46-350P · Waldron, AR · Accident · 1 fatal · Field investigation · Final report · Apr 4, 1999 · N497CA · Destroyed > The pilot's encounter with adverse weather and loss of aircraft control, which resulted in exceeding the aircraft's design stress limits. Factors were the pilot's lack of total experience in the make and model of airplane, and the icing and thunderstorm… - [NTSB DEN99LA060](https://openairdocs.org/ntsb/DEN99LA060.md): Diamond Aircraft Industries DA 20-A1 · Coyote, NM · Accident · Minor injuries · Limited investigation · Final report · Mar 27, 1999 · N528SS · Destroyed > The pilot-in-command's inadvertent flight into adverse weather, and his continued flight into instrument meteorological conditions. Factors were his failure to obtain an updated recorded weather briefing, the existing weather conditions which included snow,… - [NTSB DEN99FA064](https://openairdocs.org/ntsb/DEN99FA064.md): Piper PA-32-300 · Pagosa Springs, CO · Accident · 3 fatal · Field investigation · Final report · Mar 27, 1999 · N56306 · Destroyed > The pilot's continued VFR flight into IMC conditions. Related factors were flight into known adverse weather, the adverse weather, mountain obscuration, snow, icing, and high density altitude. Next page: https://openairdocs.org/ntsb.md?occurrence=240&page=18 ## 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE 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?occurrence=240&page=17 --- 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.