NTSB investigations: Jacobs L4 /R755-7
6 cases on aircraft whose registry engine model is Jacobs L4 /R755-7, where the first occurrence was “Loss of engine power”. 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
| 1983 | 1 |
|---|---|
| 1997 | 1 |
| 1998 | 1 |
| 2000 | 1 |
| 2004 | 1 |
| 2006 | 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('35003')
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\" = 350))
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.engine_model_code IN ('35003')
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" = 350))
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 ATL07LA001Accident · Minor injuriesLimited investigationFinal reportGrumman G-164 · Somerville, TNThe total loss of engine power for undetermined reasons.NTSB NYC04LA118Accident · 1 fatalLimited investigationFinal reportCessna T-50 · Sharon, MAThe loss of power in one engine for undetermined reasons. Factors were the excessive weight, and degraded climb performance.NTSB FTW00LA104Accident · Serious injuriesLimited investigationFinal reportCessna 195A · Roanoke, TXThe pilot's inadequate preflight resulting in loss of engine power due to water and rust contamination of the fuel. A factor was the lack of suitable terrain for the forced landing.NTSB SEA98LA193Accident · No injuriesLimited investigationFinal reportCessna T-50 · Missoula, MTA quick drain was open due to the pilot's inadequate preflight.NTSB ATL97FA095Accident · 1 fatalField investigationFinal reportBoeing Stearman B75N1 · Locust Grove, GAThe inadvertent stall encountered by the pilot after experiencing an in-flight cylinder head separation.NTSB CHI83LA232Accident · 1 fatalLimited investigationFinal reportBoeing A75N1 · Lebanon, INThe plt had flown the acft to boone county arpt to get the acft's carburetor adjusted. After the adjustment, he took off to the south on a grass rwy beside the concrete rwy. While climbing thru about 300 to 400 ft AGL, the eng began running rough. The plt…