NTSB investigations: Jacobs L4 /R755-7, MI
7 cases on aircraft whose registry engine model is Jacobs L4 /R755-7. 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.
Cases per year
| 1970 | 1 |
|---|---|
| 1973 | 1 |
| 1991 | 1 |
| 2005 | 1 |
| 2007 | 1 |
| 2021 | 1 |
| 2024 | 1 |
Where
Open the mapLatest cases
Query with SQL
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\" = 'MI' 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 ('35003'))
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" = 'MI' 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 ('35003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 CEN24LA280Accident · No injuriesClass 4 · LimitedFinal reportCessna 195A · Greenville, MIThe pilot’s loss of directional control during landing which led to a ground-loop.NTSB CEN21LA422Accident · No injuriesClass 4 · LimitedFinal reportCessna 195 · Ypsilanti, MIThe pilot’s failure to maintain directional control during taxi, which resulted in a ground loop.NTSB CHI07CA172Accident · No injuriesData collectionFinal reportCessna 195 · Battle Creek, MIThe pilot's failure to maintain directional control of the aircraft during the landing roll which resulted in a ground loop.NTSB CHI05LA099Accident · No injuriesLimited investigationFinal reportCessna 195A · Jackson, MIThe fracture of the left brake master cylinder piston rod, which resulted in the total failure of the left-side brake system and the subsequent loss of directional control during landing roll. An additional cause was the encountered ground-loop.NTSB CHI91LA190Accident · No injuriesLimited investigationFinal reportCessna 195 · Detroit, MIFailure to maintain directional control, and inadequate aircraft preflight. A factor related to the accident is the instructor pilot's lack of experience in the type aircraft.NTSB CHI74FEM16Accident · Minor injuriesClosedBeech E17L · Charlevoix, MINTSB CHI70FBJ01Accident · No injuriesClosedCessna UC-78B · South Haven, MI