# NTSB investigations, UT: Unknown

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR22LA064](https://openairdocs.org/ntsb/WPR22LA064.md): Beech A36 · Tooele, UT · Accident · No injuries · Class 3 · Limited · Final report · Nov 24, 2021 · N4370W · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB WPR11LA270](https://openairdocs.org/ntsb/WPR11LA270.md): Six Chuter Skye Ryder Aerochute · Tooele, UT · Accident · 1 fatal · Limited investigation · Final report · Jun 19, 2011 · UNREG · Substantial damage
  > The operation of a powered parachute by a non-certificated pilot. Contributing to the accident was the pilot's decision to conduct a flight in a strong gusty wind.
- [NTSB DEN03FA034](https://openairdocs.org/ntsb/DEN03FA034.md): Yakovlev YAK 52 · Midway, UT · Accident · 2 fatal · Field investigation · Final report · Jan 16, 2003 · N2256J · Destroyed
  > The malfunction of the elevator control as a result of a jammed elevator control bell crank, rendering control of the airplane impossible. A contributing factor was the foreign object (nut) damage.
- [NTSB SEA97LA157](https://openairdocs.org/ntsb/SEA97LA157.md): Cessna 172M · UT · Accident · No injuries · Limited investigation · Final report · Jul 1, 1997 · N4395R · Substantial damage
  > Undetermined.
- [NTSB DEN83FTM02](https://openairdocs.org/ntsb/DEN83FTM02.md): Piper J3C-65 · Near Holden, UT · Accident · 2 fatal · Final report · Nov 6, 1982 · N67084 · Substantial damage
  > The student pilot and his wife had flown from salt lake city to Holden, UT. According to his father, the plane crashed in an open field while the pilot was flying low and looking for a place to land. The plane crashed in an open grain field in about a 15 deg…
- [NTSB DEN81FTM11](https://openairdocs.org/ntsb/DEN81FTM11.md): Piper PA-28R · Ogden, UT · Accident · No injuries · Closed · Dec 24, 1980 · N29021 · Substantial damage
- [NTSB DEN75AD031](https://openairdocs.org/ntsb/DEN75AD031.md): Beech H35 · Provo, UT · Accident · 1 fatal · Closed · Dec 10, 1974 · N361B · Destroyed
- [NTSB DEN73AD014](https://openairdocs.org/ntsb/DEN73AD014.md): Funk B85C · Hanksville, UT · Accident · 1 fatal · Closed · Sep 26, 1972 · N1636N · Destroyed
- [NTSB DEN69F0074](https://openairdocs.org/ntsb/DEN69F0074.md): Piper PA-18 · Paradise, UT · Accident · 1 fatal · Closed · Jul 26, 1968 · N7244K · Destroyed
- [NTSB DEN67A0077](https://openairdocs.org/ntsb/DEN67A0077.md): Beech S35 · Brigham City, UT · Accident · 2 fatal · Closed · May 30, 1967 · N5682K · Destroyed
- [NTSB DEN65A0079](https://openairdocs.org/ntsb/DEN65A0079.md): Bellanca 14-133 · Panguitch, UT · Accident · 3 fatal · Closed · Jun 13, 1965 · N6525N · Destroyed

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = 990)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/990/cases?state=UT

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.