OpenAirDocs.org

NTSB investigations, 2011

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\") = 2011
    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 ERA12LA112Accident · Serious injuriesLimited investigationFinal reportPiper PA-38-112 · Merry Hill, NCOperation of the airplane by a non-certificated pilot. Contributing to the accident was the non-certificated pilot’s failure to maintain airspeed while making a forced landing following a total loss of engine power at low altitude, which resulted in an…Dec 16, 2011 · N9279T · Substantial damageNTSB ERA12CA095Accident · No injuriesData collectionFinal reportBell 206L-3 · Wingate, NCThe certified flight instructor did not select an adequate landing site for the practice autorotation.Dec 1, 2011 · N216TV · Substantial damageNTSB WPR12LA029Accident · No injuriesLimited investigationFinal reportBell 47D1 · San Diego, CAThe flight instructor's inadequate supervision of the student pilot during a simulated autorotation and the pilots’ failure to use carburetor heat while operating at reduced engine power while in carburetor icing conditions, which resulted in a loss of engine…Nov 8, 2011 · N4251A · Substantial damageNTSB WPR11LA462Accident · No injuriesLimited investigationFinal reportHughes 269C · Ramona, CAThe flight instructor’s failure to follow the proper procedure while demonstrating a practice autorotation, which resulted in a total loss of engine power and subsequent hard landing.Sep 22, 2011 · N1088Y · Substantial damageNTSB CEN11LA688Accident · Minor injuriesLimited investigationFinal reportTaylorcraft BC12-D · Berryville, TXThe pilot did not maintain control of the airplane during a forced landing, which resulted in an aerodynamic stall. Contributing to the accident was the loss of engine power for undetermined reasons.Aug 28, 2011 · N8617 · Substantial damageNTSB ERA11WA472Accident · 4 fatalForeign investigationAgusta AW139 · BrazilOn August 19, 2011, at 1948 coordinated universal time (16:48 local time), an Agusta, AW139, helicopter, Brazilian registration PT-SEK, impacted into the Atlantic Ocean, near an oil rig, identifier P-65, the helicopter sank in waters with a recorded floor…Aug 19, 2011 · PR-SEK · Substantial damageNTSB CEN11FA528Accident · 2 fatalField investigationFinal reportWright B Flyer Wright B Flyer · Springfield, OHThe flight crew’s failure to maintain airplane control following a partial loss of engine thrust during cruise flight. Contributing to the accident was the failed weld as a result of incomplete welding on the left propeller shaft, which led to the partial…Jul 30, 2011 · N453WB · Substantial damageNTSB ERA11FA414Accident · 2 fatalField investigationFinal reportCirrus Design SR22 · Palm Bay, FLThe pilot’s failure to maintain adequate airspeed while maneuvering for a forced landing, resulting in an inadvertent aerodynamic stall. Contributing to the accident were the pilot’s failure to secure the oil gauge rod and cap assembly before flight and his…Jul 23, 2011 · N122HB · Substantial damageNTSB WPR11TA274Accident · No injuriesFinal reportBell 206B · Franklin, CAThe student pilot's failure to maintain rotor rpm during the practice autorotation.Jun 21, 2011 · N38EA · Substantial damageNTSB CEN11LA397Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Grand Forks, NDThe student pilot's inadequate recovery from an autorotation and the CFI's delayed remedial action.Jun 15, 2011 · N2077E · Substantial damageNTSB WPR11CA243Accident · No injuriesData collectionFinal reportBell 206B3 · Glendale, AZThe certified flight instructor's failure to maintain adequate main rotor RPM during the autorotation.May 27, 2011 · N59383 · Substantial damageNTSB CEN11FA285Accident · 1 fatalField investigationFinal reportHawker-Beechcraft E-55 · De Queen, ARThe pilot’s loss of control during takeoff for undetermined reasons.Apr 15, 2011 · N3959W · Substantial damageNTSB CEN11LA311Accident · No injuriesLimited investigationFinal reportMooney M20K · New Orleans, LAA loss of electrical and engine power for undetermined reasons.Apr 7, 2011 · N305M · Substantial damageNTSB ERA11LA200Accident · No injuriesLimited investigationFinal reportPiper PA-18A 150 · Hollywood, FLA total loss of engine power for undetermined reasons.Mar 19, 2011 · N9692D · Substantial damageNTSB ERA11CA166Accident · Minor injuriesData collectionFinal reportEnstrom F-28C · Fort Pierce, FLThe pilot's improper fuel management, which resulted in a loss of engine power due to fuel exhaustion.Feb 26, 2011 · N5689B · Substantial damageNTSB CEN11LA204Accident · Serious injuriesLimited investigationFinal reportCessna 172N · Andrews, TXThe pilot's failure to maintain adequate airspeed during an emergency descent, following a loss of engine power, which resulted in an inadvertent stall.Feb 25, 2011 · N739BL · Substantial damageNTSB WPR11CA121Accident · No injuriesData collectionFinal reportRobinson R44 · Ogden, UTThe certified flight instructor’s failure to maintain adequate main rotor blade rpm during a practice autorotation, resulting in a hard landing and rollover.Feb 4, 2011 · N441TB · Substantial damageNTSB WPR11CA101Accident · No injuriesData collectionFinal reportBell 206B3 · Three Forks, MTThe pilot’s inadequate use of throttle during the practice autorotation that resulted in a hard landing.Jan 15, 2011 · N78BR · Substantial damage