NTSB investigations, UT

14 cases where the phase of flight was Emergency descent.

Cases per year

19632026
NTSB investigations, UT per year, 1963–2026: 14 cases
19631
19791
19801
19841
19981
20021
20081
20111
20121
20171
20221
20231
20241
20251

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 c.\"eventStateOrRegion\" = 'UT' AND c.\"eventCountry\" = 'USA'
    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 WPR25LA163Accident · No injuriesClass 3 · LimitedPreliminary reportRans S20 · Fairfield, UTOn May 27, 2025, about 1330 mountain daylight time, an experimental amateur-built RANS S20 Raven, N327KM, was substantially damaged when it was involved in an accident near Fairfield, Utah. The pilot was not injured. The airplane was operated as a Title 14…May 27, 2025 · N327KM · Substantial damageNTSB WPR24LA241Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Herriman, UTA hard landing following a total loss of engine power due to fuel starvation as a result of the improper idle setting of the helicopter’s engine. Contributing to the loss of engine power was the instructor’s reduction of engine power past that recommended by…Jul 13, 2024 · N6960 · Substantial damageNTSB WPR23LA191Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 · Spanish Fork, UTThe instructor pilot’s improper landing flare during a straight-in autorotation, which resulted in a hard landing.May 15, 2023 · N227WM · Substantial damageNTSB WPR22LA267Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Cedar City, UTThe student pilot’s failure to maintain rotor rpm and airspeed and the flight instructor's inadequate remedial action to regain helicopter control during the straight-in autorotation which resulted in a hard landing.Jul 25, 2022 · N497SU · Substantial damageNTSB WPR17FA166Accident · 4 fatalField investigationFinal reportBeech A36TC · Ogden, UTA loss of control during takeoff for reasons that could not be determined.Jul 26, 2017 · N60WB · Substantial damageNTSB 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 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 LAX08CA159Accident · No injuriesData collectionFinal reportRobinson R22 · Salt Lake City, UTThe student's improper use of the anti torque pedals during a practice hover autorotation, which resulted in the helicopter rolling over. Additional causes of the accident were the certificated flight instructor's inadequate supervision of the maneuver and…May 31, 2008 · N268SH · Substantial damageNTSB DEN03LA026Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-181 · Spanish Fork, UTthe pilot's inadequate preflight planning and preparation and his in-flight decision/planning resulting in fuel exhaustion. A contributing factor was the rough, frozen terrain at the landing site.Dec 26, 2002 · N75337 · Substantial damageNTSB FTW98FA157Accident · Serious injuriesField investigationFinal reportCessna T207A · Monument Valley, UTThe engine's total power loss due to the induction air ducting separating because of inadequate maintenance by company personnel. Factors were the failure of the manufacturer to provide non-standard operating procedures in their airplane's information manual,…Mar 24, 1998 · N73780 · Substantial damageNTSB DEN84LA269Accident · Minor injuriesLimited investigationFinal reportCessna 150F · Price, UTThe pilot was following a mountain road through a pass when aircraft performance became insufficient to out climb risingterrain and continued until there was insufficient manuvering room to reverse course. A forced landing was effected on the road and the…Aug 27, 1984 · N7097F · Substantial damageNTSB DEN81FA009Accident · No injuriesClosedHiller Acft 12E · Blanding, UTNov 5, 1980 · N57972 · Substantial damageNTSB DEN80DTM07Accident · No injuriesClosedAerospatial SA316B · Provo, UTNov 30, 1979 · N2304P · Substantial damageNTSB FTW63A0119Accident · 3 fatalClosedFairchild F-27 · Salt Lake City, UTJan 17, 1963 · N2703 · Destroyed