OpenAirDocs.org

NTSB investigations, 2012

18 cases where the phase of flight was Emergency descent.

Cases per year

19622026

Where

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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 year(c.\"eventDate\") = 2012
    AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 600)
  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 WPR13CA068Accident · No injuriesData collectionFinal reportRobinson R22 · Logan, UTThe flight instructor’s delayed remedial action and inadequate supervision during a practice autorotation, which resulted in a failure to maintain adequate main rotor rpm. Contributing to the accident was the wet landing surface.Dec 15, 2012 · N393LE · Substantial damageNTSB CEN13FA075Accident · 1 fatalField investigationFinal reportHughes 369 · Childress, TXThe improper maintenance of the helicopter fuel system that resulted in erroneous fuel gauge indications and the pilot’s inadequate fuel management, both of which resulted in fuel exhaustion during a long-line hover. Also causal was the lack of company…Nov 27, 2012 · N28MP · Substantial damageNTSB CEN13LA056Accident · Minor injuriesLimited investigationFinal reportCessna 210L · La Grange, TXThe total loss of engine power due to the loss of oil to the engine. Contributing to the accident was maintenance personnel’s improper installation of the engine oil filter adaptor, which resulted in the loss of oil to the engine.Nov 9, 2012 · N732BL · Substantial damageNTSB CEN13FA044Accident · 2 fatalField investigationFinal reportCessna 310 · Stotts City, MOThe pilot's failure to maintain airplane control after he shut down the right engine in flight due a loss of oil pressure. Contributing to the accident was the pilot's decision to reposition the unairworthy airplane during twilight after extensive maintenance…Nov 5, 2012 · N6BS · Substantial damageNTSB ERA13LA045Accident · Serious injuriesLimited investigationFinal reportRobinson Helicopter R22 · Alexander City, ALThe pilot’s delayed decision to initiate an autorotation and her subsequent improper conduct of the autorotation, which resulted in a hard landing, after the helicopter started vibrating for reasons that could not be determined because postaccident…Nov 1, 2012 · N231TM · Substantial damageNTSB ANC12CA111Accident · No injuriesData collectionFinal reportRobinson Helicopter R22 Beta II · Anchorage, AKThe flight instructor's inadequate supervision of the student pilot during a hovering autorotation, which resulted in a dynamic rollover.Sep 26, 2012 · N4171J · Substantial damageNTSB WPR12TA436Accident · Minor injuriesFinal reportMcdonnell Douglas Heli 369FF · Las Vegas, NVThe pilot’s failure to maintain sufficient airspeed while performing a 270-degree practice autorotation with a gusting tailwind at a high-density altitude.Sep 24, 2012 · N911BL · Substantial damageNTSB CEN12FA621Accident · 2 fatalField investigationFinal reportRobinson Helicopter R22 Beta · Houston, TXThe pilot's failure to maintain control of the helicopter after a loss of engine power. The reason for the loss of engine power could not be determined because examination did not reveal any anomalies that would have precluded operation.Sep 10, 2012 · N281RG · Substantial damageNTSB WPR12LA408Accident · No injuriesLimited investigationFinal reportBell Helicopter Textron 206L-1 · Grand Canyon, AZA total loss of engine power during descent for reasons that could not be determined because postaccident engine examinations and testing revealed no evidence of an anomaly that would have precluded normal operation.Sep 9, 2012 · N5745Y · Substantial damageNTSB WPR12FA349Accident · 1 fatalField investigationFinal reportCessna P210N · Santa Monica, CAThe pilot's failure to maintain altitude during a return to the airport following an unspecified emergency; the nature of the emergency could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would…Aug 11, 2012 · N41KA · Substantial damageNTSB CEN12WA640Accident · Serious injuriesForeign investigationPiaggio P149 · Hoogeveen, NetherlandsOn August 4, 2012, at 0945 coordinated universal time, a Piaggio P149D, Dutch registration D-EGIT, owned by a private individual and operated by the pilot, received substantial damage when it impacted terrain under unknown circumstances near Hoogeveen Airport…Aug 4, 2012 · D-EGIT · Substantial damageNTSB WPR12LA267Accident · Minor injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Scottsdale, AZThe flight instructor’s failure to maintain adequate rotor rpm during a practice autorotation, which resulted in a loss of helicopter control and subsequent hard landing.Jun 17, 2012 · N808WH · Substantial damageNTSB ERA12CA375Accident · No injuriesData collectionFinal reportSchweizer 269C-1 · Titusville, FLThe flight instructor’s inadequate supervision and delayed remedial action during a simulated engine-out procedure, which resulted in a hard landing.May 31, 2012 · N1803R · Substantial damageNTSB WPR12LA195Accident · Serious injuriesLimited investigationFinal reportRobinson R22 · Kailua-Kona, HIA loss of engine power while maneuvering for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.May 3, 2012 · N209KR · Substantial damageNTSB WPR12TA120Accident · No injuriesFinal reportEurocopter AS 350 B3 · Napa, CAThe flight instructor’s improper use of the collective control during a practice hovering autorotation, which resulted in a hard landing.Mar 1, 2012 · N341HP · Substantial damageNTSB ERA12CA199Accident · No injuriesData collectionFinal reportBell OH-58A · Eufaula, ALThe pilot's inadequate compensation for the gusting wind, which resulted in an excessive descent rate and hard landing.Mar 1, 2012 · N38FA · Substantial damageNTSB WPR12LA111Accident · No injuriesLimited investigationFinal reportEnstrom F28 · Kalispell, MTA total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.Feb 20, 2012 · N51727 · Substantial damageNTSB ERA12CA179Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · N. Charleston, SCThe flight instructor’s failure to apply power during a practice autorotation in order to arrest a high rate of descent, which resulted in an in-flight collision with terrain.Feb 13, 2012 · N5511L · Substantial damage