Fatal NTSB investigations: Maule M-4

6 cases on aircraft the registry lists as Maule M-4. 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

Fatal NTSB investigations: Maule M-4 per year, 1964–2026: 6 cases
1964	1
1965	2
1974	2
1984	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."highestInjuryLevel" = 'Fatal' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5460104')) 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.\"highestInjuryLevel\" = 'Fatal'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5460104'))
  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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5460104'))
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 SEA84FA215Accident · 6 fatalField investigationFinal reportPiper PA-28-180 · The Dalles, ORN6499J departed The Dalles municipal arpt shortly after 0930 PDT on a flt to vancouver, WA. N4622T departed chenoweth airfield ( aprx 4 NM west of The Dalles) at about 0930 PDT on a flt to The Dalles municipal arpt. A witness who observed both acft before the…Sep 1, 1984 · N6499J · 2 aircraft · Destroyed NTSB MKC75AK006Accident · 1 fatalClosedMaule M-4 · Lee'S Summit, MOJul 28, 1974 · N2068U · Destroyed NTSB MIA74AM080Accident · 1 fatalClosedMaule M-4 · Arcadia, FLMar 15, 1974 · N9809M · Destroyed NTSB NYC66A0064Accident · 2 fatalClosedMaule M-4 · Windber, PADec 4, 1965 · N4719T · Destroyed NTSB NYC66A0029Accident · 4 fatalClosedMaule BD-M-4 · Champion, PASep 1, 1965 · N4735T · Destroyed NTSB UNK65X0467Accident · 1 fatalClosedMaule M-4 · Townsend, MTOct 28, 1964 · N4725T · Destroyed