NTSB investigations: Lycoming 0-435, AK

9 cases on aircraft whose registry engine model is Lycoming 0-435. 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

19662026

NTSB investigations: Lycoming 0-435, AK per year, 1966–2026: 9 cases
1966	1
1968	1
1971	1
1974	1
1975	2
1979	1
1986	1
2016	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" = 'AK' 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 ('41516')) 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\" = 'AK' 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 ('41516'))
  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" = 'AK' 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 ('41516'))
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 ANC16LA048Accident · No injuriesLimited investigationFinal reportStinson 108 · Haines, AKThe pilot’s failure to maintain directional control of the airplane during the landing roll with a quartering tailwind, which resulted in a ground loop and overstress failure of the left main landing gear wheel axle.Jul 18, 2016 · N343C · Substantial damage NTSB ANC86FA116Accident · 2 fatalField investigationFinal reportStinson 108-2 · Willow, AKAbout 5 to 10 min prior to the acdnt, svrl witnesses in the vicinity of the Willow arpt saw the acft headed southbound. They rprtd the eng was running rough, but they saw no smoke or fire. Aprx 3 mi further south, other witnesses saw the acft make a 180 deg…Jul 28, 1986 · N942D · Destroyed NTSB ANC79DAG72Accident · Minor injuriesClosedCessna 170A · Palmer, AKJul 26, 1979 · N9535A · Substantial damage NTSB ANC76DAG28Accident · Minor injuriesClosedCessna 170A · Talkeetna, AKSep 1, 1975 · N9535A · Substantial damage NTSB ANC75DAG81Accident · No injuriesClosedStinson 108-3 · Iliamna, AKApr 10, 1975 · N569C · Substantial damage NTSB ANC75DAG39Accident · No injuriesClosedStinson 108-3 · Skwentna, AKSep 24, 1974 · N958C · Substantial damage NTSB ANC72DAA19Accident · No injuriesClosedStinson 108-1 · Black Rapids, AKOct 5, 1971 · N8535K · Substantial damage NTSB ANC69F0076Accident · No injuriesClosedCessna 170A · Anchorage, AKSep 10, 1968 · N9535A · Substantial damage NTSB ANC67D0075Accident · No injuriesClosedCessna 170A · Palmer, AKAug 14, 1966 · N9535A · Substantial damage