NTSB investigations: Maule M-5-235C

8 cases on aircraft the registry lists as Maule M-5-235C, where the sequence of events included Loss of control on ground. 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

20082026

NTSB investigations: Maule M-5-235C per year, 2008–2026: 8 cases
2008	2
2014	1
2016	2
2019	1
2020	1
2026	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 ('5460135', '5470010') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '230' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))) 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 ('5460135', '5470010')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '230' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
  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 ('5460135', '5470010')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '230' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
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 WPR26LA075Accident · No injuriesClass 4 · LimitedFinal reportMaule M-5-235C · Jay Em, WYThe loss of directional control and subsequent nose over due to the inadvertent engagement of the right wheel parking brake as a result of cabin floor carpeting migrating between the right brake master cylinder and parking brake locking lever.Jan 1, 2026 · N56500 · Substantial damage NTSB CEN20CA356Accident · No injuriesClass 4 · Data collectionFinal reportMaule M5 · Olathe, KSThe pilot's loss of directional control during landing.Aug 19, 2020 · N386X · Substantial damage NTSB GAA19CA507Accident · No injuriesData collectionFinal reportMaule M5 · Anchorage, AKThe pilot's excessive braking during landing on a dry lakebed, which resulted in a nose-over.Aug 22, 2019 · N9096E · Substantial damage NTSB GAA16CA285Accident · No injuriesData collectionFinal reportMaule M5 · Hamilton, MTThe pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a nose over.Jun 5, 2016 · N5635M · Substantial damage NTSB GAA16CA142Accident · No injuriesData collectionFinal reportMaule M5 · Wasilla, AKThe student pilot's failure to maintain directional control during the landing, which resulted in a runway excursion, and an impact with terrain.Mar 1, 2016 · N12BE · Substantial damage NTSB ANC14CA081Accident · No injuriesData collectionFinal reportMaule M 5-235C · Talkeetna, AKThe pilot's excessive taxi speed, which resulted in a loss of control.Sep 8, 2014 · N56332 · Substantial damage NTSB LAX08LA135Accident · No injuriesLimited investigationFinal reportMaule M-5-235C · Oljato, UTThe pilot's failure to achieve a normal touchdown location and loss of directional control during landing roll out. Contributing to the accident were the runway's soft surface and short length.May 9, 2008 · N9030E · Substantial damage NTSB LAX08CA106Accident · No injuriesData collectionFinal reportMaule M-5-235C · Monroe, WAThe pilot's inadequate compensation for the crosswind condition and failure to maintain directional control during the landing rollout.Apr 12, 2008 · N9277E · Substantial damage