NTSB investigations, AK
8 cases where the first occurrence was “Propeller failure/malfunction”.
Cases per year
| 1995 | 3 |
|---|---|
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 1 |
| 2002 | 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\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 131)
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" = 'AK' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 131) 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 ANC02LA127Accident · No injuriesLimited investigationFinal reportPiper PA-18 · Ekwok, AKA partial separation of one propeller blade during cruise flight.NTSB ANC98LA131Accident · No injuriesLimited investigationFinal reportCessna 172 · Palmer, AKFatigue of the forward end of the engine crankshaft resulting in separation of the propeller assembly, and the operator's failure to comply with a required maintenance procedure. A factor was uneven terrain.NTSB ANC97LA046Accident · No injuriesLimited investigationFinal reportBeech G18S · Nome, AKfracture of a propeller blade tip.NTSB ANC97FA024Accident · 1 fatalField investigationFinal reportde Havilland DHC-4A · Sparrevohn, AKloss of the right engine propeller control oil, which led to an overspeed of the right engine and propeller, and necessitated a shut-down of the right engine; and failure of the pilot to maintain adequate altitude/distance from terrain during visual approach…NTSB ANC96LA096Accident · No injuriesLimited investigationFinal reportBeech 18 · Fairbanks, AKThe malfunction of the propeller control unit on the right engine.NTSB ANC95IA173Incident · No injuriesIncident investigationFinal reportPiper PA-28-181 · Gustavus, AKfatigue failure of the propeller blade due to previous foreign object damage.NTSB ANC95IA151Incident · No injuriesIncident investigationFinal reportPiper PA-28-181 · Juneau, AKfailure and separation of the propeller blade due to foreign object damage and fatigue.NTSB ANC95LA131Accident · No injuriesLimited investigationFinal reportPiper PA-18-160 · Port Alsworth, AKAn in-flight separation of a propeller blade, which resulted in a severe vibration, shutdown of the engine, and a forced landing in alder bushes.