NTSB investigations: Maule M-7-235

7 cases on aircraft the registry lists as Maule M-7-235, where the first occurrence was “In flight encounter with weather”. 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

19942026

NTSB investigations: Maule M-7-235 per year, 1994–2026: 7 cases
1994	1
1995	1
1996	2
1998	1
1999	1
2002	1

Where

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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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5470208') 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" = 240)) 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5470208')
      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\" = 240))
  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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5470208')
    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" = 240))
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 ANC03LA003Accident · Serious injuriesLimited investigationFinal reportMaule M-7-235 · Wrangell, AKThe pilot's inadequate weather evaluation, his continued flight into instrument meteorological conditions (IMC), and his failure to maintain adequate altitude/clearance from terrain/water, which resulted in a collision with water while maneuvering. Factors…Oct 17, 2002 · N5662S · Destroyed NTSB ANC00LA013Accident · No injuriesLimited investigationFinal reportMaule M7-235C · Palmer, AKThe pilot's intentional takeoff into known adverse weather. Factors associated with this accident are crosswinds, gusts, and downdrafts.Nov 15, 1999 · N5657A · Substantial damage NTSB ANC98LA165Accident · Serious injuriesLimited investigationFinal reportMaule ML-7 · Wasilla, AKThe pilot's inadequate compensation for the wind conditions, resulting in an inadvertent stall. Contributing factors were the gusty and turbulent weather conditions.Sep 30, 1998 · N6110C · Substantial damage NTSB SEA97LA021Accident · No injuriesLimited investigationFinal reportMaule M-7-235 · Laramie, WYVFR flight by the pilot into instrument meteorological conditions (IMC), his misjudged speed/distance on final approach for landing, and his failure to attain the proper touchdown point during the landing. Factors relating to the accident include snow, low…Oct 25, 1996 · N5664Y · Substantial damage NTSB ANC96FA131Accident · 2 fatalField investigationFinal reportMaule M-7 · Barrow, AKthe pilot's inadequate weather evaluation and resultant flight into adverse weather conditions. Factors associated with the accident were: high winds and terrain induced turbulence.Aug 24, 1996 · N5656A · Destroyed NTSB ANC95LA172Accident · No injuriesLimited investigationFinal reportMaule M-7-235 · Aniak, AKThe pilot's inadequate weather evaluation. Factors associated with the accident were: the box canyon, rising terrain, wind gusts, and downdrafts.Sep 21, 1995 · N56564 · Substantial damage NTSB CHI94FA155Accident · 2 fatalField investigationFinal reportMaule M-7-235 · Mcintosh, SDVFR flight by the non-instrument rated pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude (or clearance) from rising terrain. Factors related to the accident were: failure of the pilot to update his weather…May 2, 1994 · N525GS · Destroyed