NTSB investigations, UT

33 cases where the phase of flight was Uncontrolled descent.

Cases per year

19642026
NTSB investigations, UT per year, 1964–2026: 33 cases
19643
19651
19672
19682
19692
19702
19723
19732
19742
19752
19774
19781
19791
19803
19951
20021
20261

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 = 650)
  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 WPR26FA108Accident · 1 fatalClass 3 · FieldPreliminary reportVans RV-8 · Hurricane, UTOn February 28, 2026, at about 1005 mountain standard time, an experimental amateur-built, Vans Aircraft, RV-8, N80AR, was substantially damaged when it was involved in an accident near Hurricane, Utah. The pilot was fatally injured. The airplane was operated…Feb 28, 2026 · N80AR · Substantial damageNTSB DEN02LA109Accident · 2 fatalLimited investigationFinal reportSabian Rans S-12XL · Mexican Hat, UTthe pilot's inadequate in-flight planning and decision making (flying up a canyon with insufficient altitude) which resulted in an inadvertent stall/mush, and the pilot's failure to follow the proper emergency procedures for activating his Ballistic Recovery…Sep 22, 2002 · N725ST · DestroyedNTSB SEA95LA070Accident · 2 fatalLimited investigationFinal reportQuicksilver MXL2 · Hildale, UTThe pilot's failure to maintain adequate airspeed while banking the airplane. This led to an unrecoverable aerodynamic stall in close proximity to the ground. Factors contributing to the accident are the pilot exceeding the airplane's weight and balance…Mar 13, 1995 · UNREG · DestroyedNTSB DEN81FA012Accident · 1 fatalClosedBeech 76 · Morgan, UTNov 23, 1980 · N6048Y · DestroyedNTSB DEN80FA037Accident · 1 fatalClosedGlobe GC-1B · Spanish Fork, UTJun 7, 1980 · N211M · DestroyedNTSB DEN80FA021Accident · 2 fatalClosedMooney M20F · Grantsville, UTJan 27, 1980 · N6439Q · DestroyedNTSB DEN79AA028Accident · 4 fatalClosedRockwell 114 · Fairfield, UTMar 4, 1979 · N4804W · DestroyedNTSB DEN78FA036Accident · 1 fatalClosedCessna TP206C · Angle, UTApr 8, 1978 · N8697Z · DestroyedNTSB DEN78FA002Accident · 7 fatalClosedPiper PA-32 · Cedar Fort, UTSep 30, 1977 · N5400F · Substantial damageNTSB DEN77FA054Accident · 3 fatalClosedCessna 172 · Nsalina, UTAug 17, 1977 · N7985U · DestroyedNTSB DEN77FA036Accident · 2 fatalClosedCessna TU206F · Duchesne, UTApr 12, 1977 · N1066V · DestroyedNTSB DEN77FA022Accident · 2 fatalClosedCessna 172 · Moab, UTJan 24, 1977 · N4171F · DestroyedNTSB DEN7KAD061Accident · 2 fatalClosedCessna 182E · Cove Fort, UTJun 17, 1975 · N3361Y · DestroyedNTSB DEN75AD040Accident · 3 fatalClosedBeech 95-B55 · Riverton, UTFeb 1, 1975 · N157D · DestroyedNTSB DEN75AD034Accident · 2 fatalClosedCessna 150K · Tremonton, UTDec 20, 1974 · N6359G · DestroyedNTSB DEN75AD002Accident · 2 fatalClosedPiper PA-28 · Nephi, UTJul 12, 1974 · N8535W · DestroyedNTSB DEN73AD048Accident · 1 fatalClosedCessna 205A · Parowan, UTApr 14, 1973 · N8490Z · DestroyedNTSB DEN73AD036Accident · 4 fatalClosedCessna 210 · Milford, UTFeb 8, 1973 · N9418X · DestroyedNTSB DEN73DTM05Accident · Minor injuriesClosedCessna 150K · Park City, UTAug 22, 1972 · N8365M · Substantial damageNTSB DEN72AD034Accident · 1 fatalClosedCessna T210F · Lehi, UTFeb 1, 1972 · N6762R · DestroyedNTSB DEN72AD028Accident · 2 fatalClosedMooney M20A · Scipio, UTJan 2, 1972 · N8133E · DestroyedNTSB DEN71AD010Accident · 1 fatalClosedCessna 182N · Escalante, UTSep 4, 1970 · N92928 · DestroyedNTSB DEN70FXT07Accident · Serious injuriesClosedBrantly B-2 · Murray, UTMar 26, 1970 · N5917X · Substantial damageNTSB DEN70A0033Accident · 3 fatalClosedCessna P206 · Bryce Canyon, UTNov 8, 1969 · N2502X · DestroyedNTSB DEN70F0005Accident · No injuriesClosedPiper PA-28 · North Ogden, UTJun 14, 1969 · N5029W · Substantial damageNTSB DEN69A0009Accident · 1 fatalClosedCessna 172E · Kamas, UTAug 20, 1968 · N3024U · DestroyedNTSB DEN68A0039Accident · 3 fatalClosedCessna 210 · Eureka, UTFeb 21, 1968 · N1838F · DestroyedNTSB DEN67A0047Accident · 2 fatalClosedCessna 182C · Plymouth, UTFeb 14, 1967 · N8674T · DestroyedNTSB DEN67A0043Accident · 1 fatalClosedPiper PA-28 · Brigham City, UTJan 31, 1967 · N8317R · DestroyedNTSB DEN66A0023Accident · 1 fatalClosedBell 47G3B1 · Monticello, UTSep 28, 1965 · N1127W · DestroyedNTSB UNK65X0365Accident · 2 fatalClosedPiper PA-18 · Dugway, UTOct 21, 1964 · N5031K · DestroyedNTSB UNK64X0553Accident · 2 fatalClosedCessna 172D · Provo, UTFeb 13, 1964 · N2970U · DestroyedNTSB UNK64X0257Accident · Serious injuriesClosedBc65 DC65 · Francis Peak, UTJan 16, 1964 · N29616 · Destroyed