NTSB investigations, SD
109 cases where the phase of flight was Takeoff.
Cases per year
| 1964 | 3 |
|---|---|
| 1965 | 3 |
| 1966 | 5 |
| 1967 | 5 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 4 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 4 |
| 1975 | 3 |
| 1976 | 2 |
| 1977 | 1 |
| 1978 | 7 |
| 1979 | 4 |
| 1981 | 6 |
| 1982 | 2 |
| 1983 | 3 |
| 1984 | 4 |
| 1985 | 1 |
| 1986 | 3 |
| 1987 | 1 |
| 1988 | 1 |
| 1990 | 2 |
| 1991 | 1 |
| 1993 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 1999 | 2 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 4 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
Where
Latest cases
Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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.\"eventStateOrRegion\" = 'SD' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 300)
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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."eventStateOrRegion" = 'SD' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 300)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN23LA175Accident · No injuriesClass 4 · LimitedFinal reportCessna 172S · Brookings, SDThe student pilot’s failure to maintain pitch and directional control during the takeoff roll. Contributing to the accident, was the student pilot’s delay in relinquishing control of the airplane and the instructor's delayed reaction before the loss of…NTSB CEN23LA030Accident · No injuriesClass 4 · LimitedFinal reportCessna 182Q · Murdo, SDThe pilot’s failure to maintain directional control during takeoff with strong gusty surface winds.NTSB CEN20CA344Accident · No injuriesClass 4 · Data collectionFinal reportBeech 35 · White Owl, SDThe pilot's failure to maintain directional control during the takeoff, which resulted in a runway excursion and subsequent impact with an obstacle and terrain.NTSB CEN20LA215Accident · 1 fatalClass 3 · LimitedFinal reportMitsubishi MU2B · Sioux Falls, SDThe pilot’s failure to maintain control of the airplane during takeoff for reasons that could not be determined.NTSB GAA19CA217Accident · Minor injuriesData collectionFinal reportVans Vans RV-12 · Wall, SDThe pilot's improper decision to depart from a slush-covered runway, which resulted in a loss of directional control, a runway excursion, and a subsequent nose-over.NTSB GAA18CA429Accident · No injuriesData collectionFinal reportCessna 170 · Spearfish, SDThe pilot’s improper decision to take off in tailwind conditions, which resulted in an aborted takeoff with insufficient runway remaining.NTSB GAA18CA173Accident · No injuriesData collectionFinal reportCessna 182 · Rapid City, SDThe pilot's selection of unsuitable terrain for takeoff, which resulted in a loss of control and runway excursion.NTSB GAA18CA166Accident · No injuriesData collectionFinal reportCessna 140 · Madison, SDThe flight instructor’s delayed aborted takeoff on a soft, wet, grass runway, which resulted in a runway overrun.NTSB CEN16LA006Accident · Serious injuriesLimited investigationFinal reportRobinson Helicopter R44 · Parkston, SDThe pilot’s decision to take off from a confined area and his failure to adequately compensate for wind conditions during the takeoff, which resulted in collision with obstacles.NTSB GAA15CA117Accident · No injuriesData collectionFinal reportAir Tractor AT 401 · Wall, SDThe pilot's failure to adjust the airplane's useful load to compensate for the high temperature, which resulted in an insufficient climb rate to clear surrounding terrain, and a runway excursion.NTSB CEN14LA284Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Winner, SDThe pilot's improper decision to attempt a takeoff with a tailwind and his failure to achieve the proper airspeed for liftoff, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall shortly after liftoff.NTSB CEN13CA481Accident · No injuriesData collectionFinal reportSuper 18 S18-STD · Humboldt, SDThe pilot's inadvertent addition of water into the fuel system and his improper preflight inspection, which resulted in a loss of engine power due to fuel contamination.NTSB CEN13LA391Accident · No injuriesLimited investigationFinal reportAir Tractor AT-402B · Ipswich, SDThe pilot’s failure to obtain adequate airspeed during the takeoff roll, which resulted in an aerodynamic stall.NTSB CEN13CA108Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Okaton, SDThe pilot's failure to perform an adequate preflight inspection of the airplane and obstruction of the aileron control system by snow and ice, which led to a loss of control during flight.NTSB CEN12CA375Accident · No injuriesData collectionFinal reportAir Tractor AT-502 · Ipswich, SDThe pilot's failure to abort the takeoff, which resulted in a runway excursion.NTSB CEN12LA059Accident · 1 fatalLimited investigationFinal reportCessna 172M · Sturgis, SDThe student pilot’s failure to maintain control of the airplane during takeoff with extended flaps.NTSB CEN11LA563Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Mansfield, SDThe loss of engine power due to debris in the engine air intake system.NTSB CEN11CA301Accident · No injuriesData collectionFinal reportAyres S2R-R1340 · Estelline, SDThe pilot's failure to maintain directional control of the airplane during takeoff.NTSB CEN11LA273Accident · No injuriesLimited investigationFinal reportCessna 414A · Aberdeen, SDThe pilot's inadequate compensation for gusty crosswinds during takeoff, which resulted in a loss of directional control.NTSB CEN10CA415Accident · No injuriesData collectionFinal reportSkykits Savannah VGW · Bison, SDThe pilot's failure to maintain directional control of the airplane after encountering a gust of wind while taking off with a crosswind.NTSB CEN09CA608Accident · No injuriesData collectionFinal reportPiper J3C-65 · Spearfish, SDThe pilot's failure to maintain directional control during the takeoff roll.NTSB CHI08CA296Accident · No injuriesData collectionFinal reportPiper PA28 · Gann Valley, SDThe pilot's inability to gain sufficient altitude during takeoff as a result of inadequate preflight planning.NTSB CHI08CA111Accident · No injuriesData collectionFinal reportVeldhuizen Highlander · Onida, SDThe separation of the right main wheel from the landing gear during takeoff for an undetermined reason.. Contributing to the accident were rough/uneven terrain and that directional control was not possible.NTSB CHI08CA029Accident · No injuriesData collectionFinal reportCessna 172R · Brookings, SDThe student pilot's failure to maintain directional control during takeoff roll. Contributing to the accident was the student pilot's lack of solo flight experience and the runway sign.NTSB CHI06FA067Accident · 1 fatalField investigationFinal reportPiper PA-32-300 · Pierre, SDThe loss of engine power during takeoff-initial climb due to the pilot's failure to correctly position the fuel selector, which resulted in fuel starvation and a forced landing.NTSB CHI04LA201Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Custer, SDThe pilot's poor preflight planning/preparation and the pilot used improper aborted takeoff procedures by not reducing the throttle. Factors associated with the accident were the high density altitude and the tailwind.NTSB CHI03LA154Accident · Minor injuriesLimited investigationFinal reportBraunschmidt RV-6A · Tea, SDThe loss of engine power for undetermined reasons and the unsuitable terrain for landing encountered. Contributing factors to this accident were the crop and the collapse of the nose landing gear strut.NTSB CHI02CA211Accident · No injuriesData collectionFinal reportCessna 172N · Spearfish, SDThe probable cause of this accident was the pilot's failure to maintain directional control of the airplane during the takeoff roll. Differences in control forces and aircraft handling due to initiating the takeoff without fully retracting the flaps is a…NTSB CHI01LA060Accident · No injuriesLimited investigationFinal reportCessna 172S · Sioux Falls, SDAircraft directional control not being maintained by the student pilot during the takeoff roll. Factors to the accident were the snow bank and the student pilot's lack of total experience.NTSB CHI01LA051Accident · No injuriesLimited investigationFinal reportCessna 172M · Sturgis, SDThe pilot failed to maintain control of the airplane during takeoff and he discontinued an aborted takeoff once initiated. Factors associated with the accident were the inaccurate elevator trim indicator, the pilot's failure to verify the trim setting,…NTSB CHI00LA192Accident · No injuriesLimited investigationFinal reportCreed Lancair 235 · Hot Springs, SDthe failure of the pilot to select the correct runway for takeoff. Factors to the accident were the inadequate preflight planning/preparation, the aborted takeoff not performed, and the tailwind.NTSB CHI00LA013Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-300 · Custer, SDthe pilot's inadequate preflight planning and decision to perform an intersection takeoff, and the improper short field, rolling, intersection takeoff. A factor relating to this accident was the trees.NTSB CHI99LA214Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Timber Lake, SDthe pilots selection of the shorter runway and his failure to abort the takeoff. Factors to the accident were the high density altitude, the fence and the fence posts.NTSB CHI98LA118Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Highmore, SDthe pilot failed to abort the takeoff in a timely manner and could not stop on the runway.NTSB CHI96LA167Accident · No injuriesLimited investigationFinal reportAir Tractor AT401 · Letcher, SDthe pilot's inadequate evaluation of the severe weather condition. A factor was the weather conditions.NTSB CHI93LA314Accident · No injuriesLimited investigationFinal reportCessna 188 · Martin, SDthe pilot's failure to maintain control of the airplane during the takeoff roll.NTSB CHI91LA239Accident · No injuriesLimited investigationFinal reportPiper PA-38 · Bridgewater, SDDirectional control was not maintained by the pilot. A factor related to the accident was a fence.NTSB CHI90LA224Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Sturgis, SDPoor planning/decision, flight into known adverse weather conditions and over confidence in personal ability by the PIC. Contributing factors were thunderstorms, turbulence and unfavorable wind.NTSB DEN90LA125Accident · No injuriesLimited investigationFinal reportCessna 188A · Martin, SDThe on-ground loss of control during the takeoff ground run. Contributing to this accident was the pilot's failure to use optimum takeoff flaps for the runway conditions that existed, and the soft wet runway surface.NTSB DEN88LA208Accident · No injuriesLimited investigationFinal reportCessna 421B · Winner, SDThe private plt and 4 pax were attempting takeoff on rwy 13, a 3,900 x 30 ft asphalt rwy. The plt said the acft accelerated to 100 knots but he could not raise the nose for lift off. The plt said he aborted the takeoff and intentionally ground looped to the…NTSB DEN87LA195Accident · No injuriesLimited investigationFinal reportCessna 182L · Aberdeen, SDThe plt was taking off on rwy 13 at Aberdeen, SD, muni arpt. He said when he reached 55 mph he rotated the acft and the stall warning horn sounded. He said he allowed the nosewheel to settle back on the rwy. The acft then veered right and left, then departed…NTSB DEN86LA204Accident · No injuriesLimited investigationFinal reportPiper PA-25-260 · Sisseton, SDThe plt reported that the eng lost about 200 RPM during the takeoff roll and he decided to abort. During the abort the plt swerved to avoid a fence at the end of the rwy and the acft slid sideways collapsing the lt MLG. Investigation revealed a broken…NTSB DEN86LA166Accident · No injuriesLimited investigationFinal reportPiper PA-36 · Onida, SDThe plt reported a partial loss of pwr occurred momentarily before liftoff. The takeoff was continued and once airborne the pwr loss reoccurred. The load was dumped, however, the acft impacted trees aprx 1 mile from the arpt as sufficient alt could not be…NTSB DEN86FTK02Accident · No injuriesFinal reportAero Commander Callair A-9B · Dell Rapids, SDThe plt stated that during the takeoff roll, he lost rudder effectiveness after accelerating to about 60 KTS. He applied brakes to stop, but the acft veered off the left side of the rwy & struck a fence. No preimpact part failure or malfunction was reported.…NTSB DEN85LA100Accident · No injuriesLimited investigationFinal reportCessna 172 · Wesbter, SDThe student pilot made a touch and go landing on a grass runway. The airplane bounced 6 feet in the air during landing and a go around was initiated. The airplane was then on a collision course with airport obstacles. The pilot initiated a left turn, the…NTSB DEN85FA002Accident · 3 fatalField investigationFinal reportHamburger Flugzeugbau Hansa HFB-320 · Aberdeen, SDThe hansa jet HFB-320 acft crashed on takeoff from the Aberdeen airport after the flt crew selected the incorrect rwy for takeoff. The acft was observed running off the end of rwy 17, which is 3860 ft long, where it struck a fence, ditch, road & another ditch…NTSB DEN84LA233Accident · No injuriesLimited investigationFinal reportCessna A188B · Stratford, SDPlt stated that he was taking off on this flight with 120 gallons of chemical and full fuel tanks. He continued to state that the acft did not accelerate as it had earlier that day. The acft rolled aprx 3 quarters of the 1/2 mile long rwy before it became…NTSB DEN84LA217Accident · No injuriesLimited investigationFinal reportWeatherly 201 · Watertown, SDThe spray boom of the acft caught in the green wheat along the right side of the dirt rwy during takeoff. The acft then ran off the prepared surface into the wheat. It then nosed over onto its back and caught fire. The dirt rwy is 30 ft wide. The wingspan of…NTSB DEN84LA197Accident · No injuriesLimited investigationFinal reportCessna T188C · Philip, SDThe plt lost control of the acft during takeoff ground run when his vision was obscured by water which was sprayed on the windshield from a light rain shower.NTSB DEN83LA164Accident · No injuriesLimited investigationFinal reportCessna T188C · Carthage, SDThe acft was using a county road near the field being sprayed for takeoff. The pilot reported that the herbicide sloshedout onto the windscreen during takeoff and obscured his vision. The acft veered right and entered the ditch. The pilot said the hopper lid…