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NTSB investigations: Lycoming VO-435 series, AK

27 cases on aircraft whose registry engine model is Lycoming VO-435 series. 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

19642026

Where

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 ('41525')) 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 ('41525'))
  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 ('41525'))
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 ANC87FA043Accident · No injuriesField investigationFinal reportBell 47G-2 · Anchorage, AKA flight instructor and his commercial rotorcraft student were practicing quick stops to a hover at low altitude over a snow covered non-maintained airstrip. The student, a commercially rated fixed wing pilot, had successfully completed three quick stops, but…Mar 7, 1987 · N6140C · Substantial damage NTSB ANC84LA097Accident · No injuriesLimited investigationFinal reportPiper PA-32-260 · Igiugig, AKDuring flt, the plt heard a 'loud bang' & then the eng lost power. He transmitted a mayday call & made an emergency landing on rolling tundra. During the landing, the nose & left main gear failed & the wing & prop were damaged. An exam revealed that the eng…Jun 2, 1984 · N4732S · Substantial damage NTSB ANC83FA092Accident · No injuriesField investigationFinal reportBell B47G-2 · Anchorage, AKThe helicopter experienced a tail rotor strike during a hard landing with a door open. According to the student pilot who is a commercial pilot working on an add-on helicopter rating, the left cockpit door unlatched and partially opened on the downwind leg…Jun 7, 1983 · N6140C · Substantial damage NTSB ANC83LA035Accident · Minor injuriesLimited investigationFinal reportBell 47G-2 · Anchorage, AKThe helicopter made a landing during which the tail boom was severed. This was a dual instructional flight and accordingto the instructor, a high reconnaissance was performed before selecting their approach to the pinnacle. The pinnacle is a 3000 foot landing…Jan 19, 1983 · N2822B · Substantial damage NTSB ANC79DAA33Accident · Minor injuriesClosedBell 47G-2 · Ruby, AKSep 3, 1979 · N12848 · Substantial damage NTSB ANC75AA029Accident · No injuriesClosedBell 47G-2 · Hurricane, AKAug 27, 1975 · N6140C · Substantial damage NTSB ANC76AA013Accident · Minor injuriesClosedHiller Acft UH-12D · Nome, AKJul 28, 1975 · N87578 · Substantial damage NTSB ANC75AAG87Accident · No injuriesClosedBell 47G-2 · Anchorage, AKMay 1, 1975 · N6140C · Substantial damage NTSB ANC74AA069Accident · Minor injuriesClosedBell 47G-2 · Seward, AKApr 23, 1974 · N2822B · Substantial damage NTSB ANC73AA006Accident · No injuriesClosedBell 47G-2 · Deadhorse, AKJul 18, 1972 · N959 · Substantial damage NTSB ANC72DAG11Accident · Serious injuriesClosedHiller 12-E4 · Chitina, AKJul 20, 1971 · N9759C · Substantial damage NTSB ANC71FAA19Accident · No injuriesClosedBell 47G-2 · Fairbanks, AKSep 25, 1970 · N977B · Substantial damage NTSB ANC70D0037Accident · No injuriesClosedBell 47G-2 · Cordova, AKAug 29, 1969 · N2822B · Substantial damage NTSB ANC70A0006Accident · No injuriesClosedBell 47G-2 · King Salmon, AKJul 16, 1969 · N59H · Substantial damage NTSB ANC69A0053Accident · No injuriesClosedBell 47G-2 · Oliktok, AKMay 6, 1969 · N6701D · Substantial damage NTSB ANC69D0040Accident · No injuriesClosedBell 47G-2 · Minchumina, AKJul 14, 1968 · N6711D · Substantial damage NTSB ANC68A0004Accident · 1 fatalClosedBell 47G-2 · Cordova, AKJul 27, 1967 · N8406E · Destroyed NTSB ANC67A0050Accident · Minor injuriesClosedBell 47G-2A · Kenai, AKDec 28, 1966 · N73220 · Substantial damage NTSB ANC67A0014Accident · No injuriesClosedBell 47G-2 · Tyonek, AKJul 24, 1966 · N6717D · Substantial damage NTSB ANC67A0012Accident · No injuriesClosedBell 47G-2 · Copper Cntr, AKJul 21, 1966 · N6141 · Substantial damage NTSB ANC67A0003Accident · No injuriesClosedBell 47G-2 · Cordova, AKJul 7, 1966 · N8406E · Substantial damage NTSB ANC66A0004Accident · No injuriesClosedBell 47G2 · Kakhonak, AKAug 17, 1965 · N977B · Substantial damage NTSB ANC65A0053Accident · No injuriesClosedBell 47G2 · Port Moller, AKMay 30, 1965 · N7888B · Substantial damage NTSB ANC65A0051Accident · No injuriesClosedBell 47G2 · Delta Junc, AKMay 21, 1965 · N5196B · Substantial damage NTSB ANC65A0047Accident · Serious injuriesClosedBell 47G3 · Anchorage, AKApr 27, 1965 · N8413E · Destroyed NTSB UNK65X0560Accident · No injuriesClosedBell 47G2 · Umiat, AKNov 4, 1964 · N6717D · Substantial damage NTSB UNK64X4107Accident · No injuriesClosedBell 47G2 · Tyone, AKSep 22, 1964 · N7888B · Substantial damage