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Final NTSB investigations, 2015

22 cases where the sequence of events included Unknown or undetermined.

Cases per year

20082026

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Query with SQL
duckdb -csv -c "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 year(c.\"eventDate\") = 2015
    AND c.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '000' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\"))
  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 ERA16LA058Accident · No injuriesLimited investigationFinal reportCessna R182 · Sanford, FLA collapse of the nose landing gear due to a separation of the drag attachment fitting from the airframe. The separation was likely due to preexisting damage from an undetermined event.Oct 17, 2015 · N381MB · Substantial damageNTSB WPR16LA003Accident · Serious injuriesLimited investigationFinal reportCessna TU206G · Fall City, WAThe airplane’s collision with the ground short of the runway for reasons that could not be determined based on the available evidence.Oct 3, 2015 · N206HL · Substantial damageNTSB ANC15LA073Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 · Fort Glenn, AKThe separation of the tail rotor gearbox from the tailboom attachment point due to overstress loads imposed by a tail rotor blade imbalance as the result of impact with an undetermined object during low-level flight operations.Sep 19, 2015 · N7162R · Substantial damageNTSB GAA15LA281Accident · No injuriesLimited investigationFinal reportDehavilland DHC 2 MK.I · Nikolai, AKA loss of directional control during a water takeoff for reasons that could not be determined because the airplane was not examined due to the remote accident location.Sep 14, 2015 · N676SP · Substantial damageNTSB ERA15FA351Accident · 1 fatalField investigationFinal reportCessna 172 · Riegelwood, NCThe noncertificated pilot’s failure to maintain adequate clearance from terrain for reasons that could not be determined based on the available evidence.Sep 11, 2015 · N52445 · Substantial damageNTSB WPR15FA258Accident · 2 fatalField investigationFinal reportSilvaire Luscombe 8A · Creswell, ORThe pilot's decision to return to the runway shortly after takeoff, and his failure to maintain adequate airspeed during the turn, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall and spin.Sep 7, 2015 · N4948E · DestroyedNTSB CEN15LA391Accident · Minor injuriesLimited investigationFinal reportFerence John W Thatcher CX4A · Hebron, OHThe loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.Aug 31, 2015 · N443JF · Substantial damageNTSB WPR15LA242Accident · 1 fatalLimited investigationFinal reportBartels Lancair · Pacific Ocean (Pacific Ocean)The pilot's incapacitation for reasons that could not be determined because the airplane was not recovered from the ocean.Aug 14, 2015 · N427LE · DestroyedNTSB CEN15LA319Accident · No injuriesLimited investigationFinal reportCessna 182E · Rozet, WYThe loss of engine power for reasons that could not be determined because an examination of the engine did not reveal any anomalies that would have precluded normal operation.Jul 22, 2015 · N3344Y · Substantial damageNTSB CEN15FA289Accident · 1 fatalField investigationFinal reportCessna 172P · Bartlett, ILThe pilot’s loss of airplane control for reasons that could not be determined because an examination of the airplane did not reveal any preimpact abnormalities.Jul 3, 2015 · N62681 · DestroyedNTSB WPR15FA206Accident · 1 fatalField investigationFinal reportPiper PA 22-135 · Carey, IDUndetermined because examination of the airplane wreckage did not reveal any anomalies that would have precluded normal operation.Jul 2, 2015 · N8195C · DestroyedNTSB GAA15CA187Accident · No injuriesData collectionFinal reportHier James A Long EZ · Show Low, AZThe right main landing gear leg fracture, which resulted in the landing gear wheel separation and a runway excursion.Jun 26, 2015 · N793H · Substantial damageNTSB CEN15LA285Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Danville, ARThe loss of engine power for reasons that could not be determined based on the available information.Jun 21, 2015 · N305CG · Substantial damageNTSB GAA15CA161Accident · No injuriesData collectionFinal reportCessna 172S · Galesburg, ILFirewall damage reported by maintenance personnel that occurred during an unknown phase of flight, because the accident flight and pilot could not be determined.Jun 10, 2015 · N740SP · Substantial damageNTSB WPR15FA174Accident · 1 fatalField investigationFinal reportPiper PA 22-135 · Livermore, CAA loss of control for reasons that could not be determined, because examination of the airframe and engine revealed no anomalies that would have precluded normal operation.Jun 2, 2015 · N1348C · DestroyedNTSB WPR15LA168Accident · 1 fatalLimited investigationFinal reportHiller UH 12E · Wasco, CAAn in-flight impact with terrain for reasons that could not be determined based on available evidence.May 27, 2015 · N138HA · Substantial damageNTSB ERA15FA204Accident · 1 fatalField investigationFinal reportCessna 182 · Mulberry, TNThe pilot's failure to recover from a controlled descent for reasons that could not be determined during the postaccident investigation.May 3, 2015 · N6579M · DestroyedNTSB CEN15LA204Accident · Minor injuriesLimited investigationFinal reportGrumman G 164A · Maysville, OKThe loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.Apr 15, 2015 · N7951 · Substantial damageNTSB CEN15LA185Accident · No injuriesLimited investigationFinal reportGiackino Donald W Rotorway 162F · Marquette, MIThe loss of helicopter control for reasons that could not be determined based on the available evidence.Mar 28, 2015 · N556DG · Substantial damageNTSB GAA15CA018Accident · No injuriesData collectionFinal reportCessna 172S · Camarillo, CAThe pilot involved and the phase of flight when the damage occurred were not determined.Mar 23, 2015 · N2104H · Substantial damageNTSB CEN15FA141Accident · 2 fatalField investigationFinal reportRichard Lacourse Wheeler Express · Kersey, COThe pilot's failure to maintain airplane control during an off-airport forced landing following a total loss of engine power for reasons that could not be determined during postaccident examination of the engine. Contributing to the accident was the pilots'…Feb 11, 2015 · N564ER · DestroyedNTSB CEN15FA127Accident · 1 fatalField investigationFinal reportEagleston John H Vans RV9A · Kingston, OKThe pilot’s continuation of a banked turn following the loss of engine power, which resulted in his failure to maintain adequate airspeed and the airplane exceeding its critical angle of attack and entering an accelerated stall at low altitude. Contributing…Jan 28, 2015 · N708JE · Substantial damage