NTSB investigations: Franklin 6A8 series
4 cases on aircraft whose registry engine model is Franklin 6A8 series, where the first occurrence was “Loss of engine power(total) - mech failure/malf”. 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
| 1985 | 1 |
|---|---|
| 1995 | 1 |
| 2001 | 1 |
| 2005 | 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 ('27030')
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\" = 351))
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 ('27030')
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" = 351))
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 LAX05LA172Accident · Minor injuriesLimited investigationFinal reportRepublic RC-3 · Geyserville, CAA loss of engine power due to failure of the number 1 connecting rod bearing due to a probable oil starvation.NTSB SEA01LA154Accident · No injuriesLimited investigationFinal reportRepublic RC-3 · Chimacum, WAAn internal ground in the right magneto followed by an internal ground evidenced by arcing in the left ignition coil unit, which led to failure of both the right magneto and the left coil ignition system respectively during cruise. Contributing factors were a…NTSB FTW96LA081Accident · No injuriesLimited investigationFinal reportRepublic RC 3 · Whitewright, TXThe separation of a spark plug and 4 other spark plugs being 'finger' tight as a result of undertorquing by maintenance personnel when they were reinstalled following inspection. A factor was a lack of suitable terrain for the forced landing.NTSB MIA85LA116Accident · No injuriesLimited investigationFinal reportRepublic RC-3 · Lake Placid, FLThe plt heard a loud noise & noticed that a fire had immediately started in the eng compartment. He made an emergency landing on a nearby lake; however, the amphibious acft continued burning & was destroyed. An investigation revealed that the fire had started…