OpenAirDocs.org

NTSB investigations, 2016

15 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\") = 2016
    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 CEN17WA056Accident · No injuriesForeign investigationRobinson R22 · Cannes, FranceOn December 12, 2016, at 1300 Coordinated Universal Time (UTC), a Robinson R-22 helicopter, French registration F-HALD, was destroyed following impact with terrain during a practice autorotation near Cannes-Mandelieu Airport (LFMD), France. The two occupants…Dec 12, 2016 · F-HALD · DestroyedNTSB ERA17CA056Accident · No injuriesData collectionFinal reportBell OH 58A · Ponce, PRThe helicopter flight instructor's inadequate demonstration of a simulated engine failure, which resulted in a hard landing.Oct 25, 2016 · N161PD · Substantial damageNTSB ERA16FA329Accident · 1 fatalField investigationFinal reportCessna 172 · Laytonsville, MDThe pilot/mechanic's failure to maintain airspeed following a loss of engine power, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Also causal was the pilot/mechanic's failure to service the engine…Sep 27, 2016 · N52126 · DestroyedNTSB ERA16LA326Accident · Minor injuriesLimited investigationFinal reportHughes 269B · Ozark, ALA total loss of engine power for reasons that could not be determined following a successful postaccident engine run on the accident helicopter.Sep 22, 2016 · N269BS · Substantial damageNTSB CEN16WA345Accident · No injuriesForeign investigationRobinson R44 · Plasy, CzechiaAug 16, 2016 · OK-GES · Substantial damageNTSB CEN16FA315Accident · 1 fatalField investigationFinal reportHughes 269C · Howe, TXThe improper execution of an autorotation following the loss of engine power, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor's lack of remedial action during the autorotation.Aug 10, 2016 · N9277R · Substantial damageNTSB WPR16LA156Accident · Minor injuriesLimited investigationFinal reportRobinson R22 · Prescott, AZThe flight instructor’s delayed remedial action to address a low rotor rpm condition, which resulted in an excessive descent rate and a subsequent hard landing.Aug 2, 2016 · N22UH · Substantial damageNTSB GAA16CA408Accident · No injuriesData collectionFinal reportBell Helicopter Textron 206 · Modesto, CAThe pilot's failure to maintain pitch control during an autorotation, which resulted in abnormal ground contact and main rotor contact with the tail boom. Contributing to the accident was the low fuel level which resulted in fuel starvation and a loss of…Jul 30, 2016 · N206LW · Substantial damageNTSB GAA16CA377Accident · No injuriesData collectionFinal reportPiper PA 44 · Keene, NHThe flight instructor’s failure to use carburetor heat during the approach while operating in atmospheric conditions that were conducive to carburetor icing, which resulted in a loss of engine power due to carburetor icing.Jul 7, 2016 · N190ND · Substantial damageNTSB CEN16FA214Accident · 1 fatalField investigationFinal reportCirrus Design SR22 · Marion, ILThe pilots' failure to maintain adequate airspeed while executing a simulated engine failure and landing maneuver, which resulted in the wing's critical angle of attack being exceeded and a subsequent aerodynamic stall and loss of control.Jun 10, 2016 · N508AJ · DestroyedNTSB GAA16CA258Accident · No injuriesData collectionFinal reportBell OH 58 · Waitsburg, WAThe pilot's failure to maintain clearance from the power line during low reconnaissance flight, which resulted in a power line strike, loss of control, and a subsequent hard landing.May 21, 2016 · N543SD · Substantial damageNTSB ERA16LA167Accident · No injuriesLimited investigationFinal reportBell 47D1 · Myerstown, PAA total loss of engine power for reasons that could not be determined because examination of the engine revealed no mechanical anomalies that would have precluded normal operation.Apr 20, 2016 · N202CH · Substantial damageNTSB ERA16FA150Accident · 1 fatalField investigationFinal reportMooney M20K · Ocala, FLThe pilot's failure to maintain sufficient airspeed following a loss of engine power, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's inadvertent placement of the…Apr 9, 2016 · N96398 · Substantial damageNTSB ERA16LA151Accident · Serious injuriesLimited investigationFinal reportGranger Michael D Sonex · Jesup, GAThe pilot's improper fuel management, which resulted in fuel exhaustion and a total loss of engine power.Apr 8, 2016 · N97GR · Substantial damageNTSB GAA16CA168Accident · No injuriesData collectionFinal reportHughes 369 · Jamestown, NDThe pilot's excessive descent rate while flaring during a practice autorotation with a power recovery, which resulted in an impact with terrain.Mar 26, 2016 · N721RP · Substantial damage