NTSB investigations: Lycoming 0-320 series, UT

5 cases on aircraft whose registry engine model is Lycoming 0-320 series, where the first occurrence was “In flight collision with terrain/water”. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19842026

NTSB investigations: Lycoming 0-320 series, UT per year, 1984–2026: 5 cases
1984	1
1986	1
1992	1
2002	1
2007	1

Where

Open the map

Latest cases

Query with SQL

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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41508') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 230)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

duckdb -csv -c "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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41508')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 230))
  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.

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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41508')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 230))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB SEA07LA251Accident · No injuriesLimited investigationFinal reportCessna 172M · Thompson, UTThe pilot's failure to maintain terrain clearance while maneuvering in a box canyon.Sep 5, 2007 · N8945V · Substantial damage NTSB DEN02LA073Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Tooele, UTthe pilot-in-command failure to obtain/maintain proper rate of climb, resulting in a collision with terrain. Contributing factors were the high density altitude and exceeding the airplane's forward center of gravity limit.Jul 14, 2002 · N4690R · Substantial damage NTSB SEA92FA042Accident · 1 fatalField investigationFinal reportPiper PA-28-161 · Ogden, UTThe improper decision by the instructor pilot to perform maintenance in flight and his failure to maintain terrain clearance. Factors relating to the accident were the dark night light conditions, mountainous terrain in the area, and the instructor diverting…Feb 6, 1992 · N4370B · Destroyed NTSB DEN86LA187Accident · Minor injuriesLimited investigationFinal reportCessna 172N · Richfield, UTPlt stated after the accident, '...I noticed the wind sock and it was drooping...I went to final approach (for rwy 1) ... Noticed a little wind so I crabbed into it, and I noticed my approach didn't look good so I went to do a go-around. I went to raise the…Jul 4, 1986 · N8291E · Substantial damage NTSB DEN84LA127Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Monticello, UTThe pilot departed uphill with a tailwind at near gross weight with a high density altitude. The flight was late gettingstarted & an excessive magneto drop was attributed to a fouled plug. The pilot also stated that he was under mental stress. The acft lifted…Apr 13, 1984 · N4FN · Substantial damage