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NTSB investigations, WI

394 cases where the phase of flight was Initial climb.

Cases per year

19642026

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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\" = 'WI' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
  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.

NTSB CEN26LA277Accident · Serious injuriesClass 3 · LimitedPreliminary reportTaylorcraft BC12-D · Boyceville, WIOn August 2, 2026, about 1223 central daylight time, a Taylorcraft BC12-D airplane, N43665 was substantially damaged when it was involved in an accident near Boyceville, Wisconsin. Both the pilot and passenger were seriously injured. The airplane was operated…Aug 2, 2026 · N43665 · Substantial damageNTSB CEN24LA337Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · East Troy, WIThe pilot/mechanic’s improper torquing of the fuel hose fitting while replacing the fuel pump, which allowed air to enter the fuel system and resulted in a loss of engine power during initial climb. Contributing to the accident was the pilot/mechanic’s…Sep 2, 2024 · N32435 · Substantial damageNTSB CEN24LA245Accident · Minor injuriesClass 3 · LimitedFinal reportRaytheon A36 · Land O' Lakes, WIA partial loss of engine power for undetermined reasons.Jun 30, 2024 · N47RT · Substantial damageNTSB CEN23FA320Accident · Minor injuriesClass 3 · FieldFinal reportHeath V-Strut · Oshkosh, WIThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.Jul 25, 2023 · N9549 · Substantial damageNTSB CEN23LA272Accident · Serious injuriesClass 4 · LimitedFinal reportSix Chuter SR7 XL · Chetek, WIThe pilot’s failure to maintain aircraft control during initial climb which resulted in an impact with a pole, trees, and terrain.Jul 2, 2023 · N6365A · Substantial damageNTSB CEN23LA250Accident · Minor injuriesClass 3 · LimitedFinal reportChampion 7EC · Waunakee, WIA total loss of engine power during the initial takeoff climb due to a worn manual fuel primer pump locking mechanism, which resulted in an unlocked primer and an overly rich fuel mixture.Jun 21, 2023 · N80461 · Substantial damageNTSB CEN23LA133Accident · No injuriesClass 4 · LimitedFinal reportBeech F33A · Hilbert, WIThe pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.Feb 6, 2023 · N1074W · Substantial damageNTSB CEN22LA258Accident · No injuriesClass 3 · LimitedFinal reportEurocopter Deutschland EC 135 P2+ · Waukesha, WIThe separation and subsequent ingestion of the fenestron fairing cover into the fenestron blades for undetermined reasons.Jun 18, 2022 · N226SA · Substantial damageNTSB CEN21FA345Accident · 1 fatalClass 3 · FieldFinal reportPiper J3C-65 · Hartford, WIThe flight crew’s exceedance of the airplane’s critical angle of attack during a simulated engine failure during initial climb after takeoff, which led to an aerodynamic stall/spin and loss of control. Contributing to the severity of the occupants’ injuries…Jul 31, 2021 · N42522 · Substantial damageNTSB CEN21FA130Accident · 2 fatalClass 3 · FieldFinal reportVelocity Vtwin · Janesville, WIThe exceedance of the maximum airspeed for flight with the landing gear extended, which resulted in a separation of the right main landing gear door that subsequently impacted the right propeller and resulted in a total loss of right engine power.…Feb 16, 2021 · N13VT · Substantial damageNTSB CEN20LA329Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA22 · Burlington, WIA partial loss of engine power due to the formation of carburetor ice while on the ground, which resulted in reduced climb capability and impact with trees during the initial climb.Aug 9, 2020 · N6849B · Substantial damageNTSB CEN19FA276Accident · 1 fatalClass 2 · FieldFinal reportShirley Carl Sportcopter Vortex · Viroqua, WIThe noncertificated pilot's loss of control of the gyrocopter after a total loss of engine power due to seizure of the crankshaft bearings. Contributing to the accident were the insufficient maintenance of the engine and the pilot's lack of gyrocopter flight…Aug 19, 2019 · N634SC · DestroyedNTSB WPR18FA200Accident · 1 fatalField investigationFinal reportDe Havilland DH112 Venom · Sheboygan, WIThe airplane's encounter with wake turbulence from the lead airplane in the formation flight, which resulted in a compressor stall and the airplane's subsequent inability to climb.Jul 20, 2018 · N747J · DestroyedNTSB CEN16CA383Accident · Minor injuriesData collectionFinal reportMooney M20D · Brodhead, WIThe pilot's loss of airplane control during initial climb due to an excessively nose-high attitude. Contributing to the accident was the pilot's failure to properly set the elevator trim before takeoff in accordance with the Before Takeoff checklist.Sep 11, 2016 · N6919U · Substantial damageNTSB CEN16LA296Accident · Minor injuriesLimited investigationFinal reportRyan Navion B · Manitowoc, WIA leak in the gascolator due to degraded rubber gaskets, which allowed air to enter the fuel system and resulted in fuel starvation and a total loss of engine power during takeoff.Jul 30, 2016 · N5294K · Substantial damageNTSB GAA16CA067Accident · Minor injuriesData collectionFinal reportTaylorcraft BC12 65 · New Lisbon, WIThe pilot's exceedance of the airplane's critical angle of attack, resulting in an inadvertent aerodynamic stall and impact with terrain.Nov 2, 2015 · N33939 · Substantial damageNTSB CEN15LA279Accident · No injuriesLimited investigationFinal reportMooney M20K · Sheboygan, WIOil starvation due to preignition in the No. 5 cylinder as a result of failed spark plugs; the top and sides of the piston head were eroded, which allowed the exhaust gases caused by the preignition to pressurize the crankcase and force engine oil out of the…Jun 21, 2015 · N1168Z · Substantial damageNTSB CEN15LA242Accident · No injuriesLimited investigationFinal reportBellanca 8KCAB · Superior, WIA stuck aileron due to a battery that had become jammed in the aileron bell crank.May 27, 2015 · N102EC · Substantial damageNTSB CEN13CA543Accident · Serious injuriesData collectionFinal reportTaylorcraft BL 65 · Chippewa Falls, WIThe loss of engine power after takeoff due to carburetor icing.Sep 8, 2013 · N23683 · Substantial damageNTSB CEN13LA502Accident · Minor injuriesLimited investigationFinal reportAnderas Tiger Moth R80 · New Franken, WIThe loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.Aug 24, 2013 · N927TM · Substantial damageNTSB CEN13LA460Accident · Serious injuriesLimited investigationFinal reportSnyder Todd W Titan Tornado 1 · Wild Rose, WIThe improperly secured spark plug, which resulted in a total loss of engine power.Aug 3, 2013 · N70786 · Substantial damageNTSB CEN13LA216Accident · No injuriesLimited investigationFinal reportCessna 172 · Wonewoc, WIThe restricted vented fuel cap and obstructed fuel vent lines, which resulted in a total loss of engine power due to fuel starvation.Apr 1, 2013 · N8033B · Substantial damageNTSB CEN12LA530Accident · Serious injuriesLimited investigationFinal reportWilliams John T-51 Mustang · Oshkosh, WIThe separation of an engine cooling hose from the radiator.Aug 7, 2012 · N151TA · Substantial damageNTSB CEN12CA469Accident · Serious injuriesData collectionFinal reportPurtee Kevin M Pietenpol Aircamper · Broadhead, WIThe pilot's failure to adequately remove water-contaminated fuel during the preflight inspection, which resulted in a total loss of engine power during takeoff, and his decision to initiate a turn back to the runway with insufficient airspeed, which resulted…Jul 22, 2012 · N899KP · Substantial damageNTSB CEN11FA562Accident · No injuriesField investigationFinal reportAir Tractor AT-301 · Nekoosa, WIA total loss of engine power during initial climb for undetermined reasons.Aug 4, 2011 · N4345S · Substantial damageNTSB CEN11LA536Accident · Serious injuriesLimited investigationFinal reportBellanca 14-13 · Stoughton, WIThe pilot’s improper preflight planning and his failure to gain proper airspeed during takeoff from a grass airstrip resulting in a stall, the loss of control, and subsequent impact with the trees. Contributing to the accident was the pilot operating the…Aug 1, 2011 · N74260 · Substantial damageNTSB CEN11LA506Accident · No injuriesLimited investigationFinal reportGottschalk John R John 1 · Oshkosh, WIThe pilot's inadequate preflight planning, which led to the power required exceeding the power available and resulted in a loss of lift and subsequent hard landing.Jul 25, 2011 · N559RD · Substantial damageNTSB CEN11LA522Accident · No injuriesLimited investigationFinal reportCessna 172B · Middleton, WIThe total loss of engine power during climb after takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.Jul 23, 2011 · N7624X · Substantial damageNTSB CEN11FA433Accident · 1 fatalField investigationFinal reportKlemp Gregory J Challenger II · Neshkoro, WIThe total loss of engine power during the initial climb due to a cold seizure as a result of a broken fan V-belt. Contributing to the accident was the passenger's interference with the flight controls during the forced landing.Jun 30, 2011 · N12911 · Substantial damageNTSB CEN11LA448Accident · Serious injuriesLimited investigationFinal reportCessna 140 · Burlington, WIThe improper installation of the fuel selector indicator handle, which resulted in a total loss of engine power due to fuel starvation.Jun 29, 2011 · N2332V · Substantial damageNTSB CEN11LA429Accident · Minor injuriesLimited investigationFinal reportKeesler W8 Tailwind · Oshkosh, WIThe loss of engine power during initial climb for undetermined reasons.Jun 29, 2011 · N56PK · Substantial damageNTSB CEN11FA310Accident · 1 fatalField investigationFinal reportJurmu Stol CH701 · Pulaski, WIThe pilot did not maintain control of the airplane during initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s lack of recent flight experience.Apr 29, 2011 · N701MJ · Substantial damageNTSB CEN09CA537Accident · No injuriesData collectionFinal reportRewey William M CH 801 · Cottage Grove, WIA total loss of engine power during initial climb due to fuel starvation from a blocked fuel screen that resulted from the pilot/owner's inadequate inspection and maintenance of the fuel system.Aug 23, 2009 · N171WR · Substantial damageNTSB CEN09LA263Accident · 1 fatalLimited investigationFinal reportLaseure Sonerai II · Grantsburg, WIThe pilot's failure to maintain airspeed during initial climb which resulted in a stall/spin. Contributing to the accident was the degraded engine performance.Apr 22, 2009 · N232PE · DestroyedNTSB CHI08CA287Accident · Minor injuriesData collectionFinal reportCessna 172M · Three Lakes, WIThe pilot's failure to attain sufficient altitude to avoid the trees during initial climb. Contributing to the accident were the pilot's failure to ensure the security of the entrance door before takeoff and the unintentional opening of the door.Sep 1, 2008 · N12809 · Substantial damageNTSB CHI08FA222Accident · Minor injuriesField investigationFinal reportPiper PA-22 · Oshkosh, WIThe pilot's failure to maintain adequate airspeed while taking off in gusting winds, which resulted in an aerodynamic stall and subsequent loss of control.Jul 30, 2008 · N3671A · Substantial damageNTSB CHI08CA226Accident · Minor injuriesData collectionFinal reportAmerican AA-1A · Grantsburg, WIA loss of engine power for an undetermined reason.Jul 22, 2008 · N9483L · Substantial damageNTSB CHI08FA135Accident · 2 fatalField investigationFinal reportPiper PA-28-140 · Stevens Point, WIThe partial loss of engine power for undetermined reasons.May 12, 2008 · N1813T · Substantial damageNTSB CHI08CA127Accident · Minor injuriesData collectionFinal reportCessna 140 · Burlington, WIA loss of engine power for undetermined reasons. Contributing to the accident was the low altitude at the time of the loss of engine power.May 9, 2008 · N89307 · Substantial damageNTSB CHI07LA238Accident · 1 fatalLimited investigationFinal reportSwanson Aventura II · Lakewood, WIThe pilot's excessive pull up, his not maintaining airspeed, and the inadvertent stall resulting in the loss of control. A factor contributing to the accident was the trees.Jul 28, 2007 · N914JS · Substantial damageNTSB CHI07LA177Accident · Serious injuriesLimited investigationFinal reportCessna 172M · Rio Creek, WIThe pilot's improper aircraft weight and balance, and his failure to maintain sufficient airspeed to avoid a stall during takeoff-initial climb.Jun 24, 2007 · N4422R · Substantial damageNTSB CHI05CA204Accident · Minor injuriesData collectionFinal reportWilson Acrolite 1T · Oshkosh, WIThe partial loss of engine power due to an obstructed carburetor fuel metering jet. Factors to the accident included the low altitude at which the loss of engine power occurred, the contamination of the fuel system from degraded automobile-style fuel lines,…Jul 29, 2005 · C-IAVT · Substantial damageNTSB CHI04FA290Accident · 3 fatalField investigationFinal reportBeech B95A · Burlington, WIThe improper maintenance of the fuel servo resulting in a loose adjustment nut and subsequent failure of the fuel injection servo which led to a complete loss of power on the right engine. Other causes were the pilot's failure to obtain or maintain minimum…Sep 30, 2004 · N1703Y · DestroyedNTSB CHI04LA265Accident · Serious injuriesLimited investigationFinal reportKenny Mariner-MF Boat · Eagle River, WIThe pilot's inability to maintain control of the aircraft during flight for undetermined reasons.Sep 21, 2004 · N744PK · Substantial damageNTSB CHI04LA253Accident · Serious injuriesLimited investigationFinal reportWilliams Glastar GS-1 · Hayward, WIThe pilot's failure to adequately compensate for the wind conditions which resulted in a loss of aircraft control. A factor associated with the accident was the gusty wind condition.Sep 10, 2004 · N501YR · Substantial damageNTSB CHI04LA167Accident · No injuriesLimited investigationFinal reportBeech 200 · Green Bay, WIThe loss of engine power after takeoff for an undetermined reason.Jun 30, 2004 · N432FA · Substantial damageNTSB CHI04LA147Accident · No injuriesLimited investigationFinal reportNorth American T-28C · Manitowoc, WIFailure of the number 4 piston articulating rod resulting in a complete loss of engine power during initial climb. The ditch was a contributing factor.Jun 4, 2004 · N404DK · Substantial damageNTSB CHI04CA118Accident · No injuriesData collectionFinal reportPiper PA-12 · Hartford, WIThe loss of engine power for undetermined reasons. A factor to the accident was the soft terrain encountered during the forced landing.May 9, 2004 · N2368M · Substantial damageNTSB CHI03FA239Accident · No injuriesField investigationFinal reportGerlach Skyraider II · Oshkosh, WIThe pilot's failure to abort the takeoff, his improper use of flaps during the takeoff, and his failure to attain sufficient airspeed resulting in an inadvertent stall and subsequent impact with a road.Aug 2, 2003 · N1068S · Substantial damageNTSB CHI03IA153Incident · No injuriesIncident investigationFinal reportBeech 1900D · Milwaukee, WIFailure of the aileron sprocket assembly at the sprocket-to-shaft braze joint. Contributing factors were the improper braze procedure used by the part manufacturer at the time of fabrication which resulted in an inferior quality joint and the inadequate…Jun 7, 2003 · N901SK · Minor damage