NTSB investigations: Allison 250-C20 series, OR
13 cases on aircraft whose registry engine model is Allison 250-C20 series. 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
| 1979 | 1 |
|---|---|
| 1980 | 1 |
| 1984 | 1 |
| 1992 | 1 |
| 1994 | 1 |
| 1997 | 1 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2010 | 1 |
| 2012 | 2 |
| 2013 | 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\" = 'OR' 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 ('03020'))
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" = 'OR' 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 ('03020'))
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 WPR13GA374Accident · No injuriesFinal reportMcdonnell Douglas Helicopter 369E · Burns, ORThe total loss of engine power during cruise flight due to the separation of one of the 4th-stage turbine wheel blades due to low-cycle fatigue cracking that had progressed to high-cycle fatigue cracking, which ultimately led to the overload failure of the…NTSB WPR13CA057Accident · Minor injuriesData collectionFinal reportHughes 369D · Sheridan, ORThe pilot’s failure to prevent the helicopter from entering a vortex ring state (settling with power) condition during an external load operation, which resulted in the helicopter’s main rotor blades impacting the truck.NTSB WPR12LA328Accident · Serious injuriesLimited investigationFinal reportHughes Helicopters 369E · The Dalles, ORThe loss of engine power due to fuel starvation, which resulted from the fuel tank supply pickup becoming unported while the helicopter was pulling power lines.NTSB WPR10CA314Accident · No injuriesData collectionFinal reportBell 206B · Rickreall, ORA total loss of engine power due to fuel exhaustion as a result of the pilot's failure to ensure that adequate fuel was aboard for the flight.NTSB SEA05CA200Accident · Minor injuriesData collectionFinal reportMcDonnell Douglas 369E · Medford, ORIn-flight collision with terrain during a precautionary landing. Factors include instrument meteorological conditions and pilot disorientation.NTSB SEA04LA181Accident · No injuriesLimited investigationFinal reportHughes 369D · Cottage Grove, ORIn-flight loss of engine power during cruise for undetermined reasons.NTSB SEA02LA137Accident · No injuriesLimited investigationFinal reportBell 206B · Elsie, ORThe shattering and separation of the forward right (pilot's) windscreen for undetermined reason(s).NTSB SEA97LA072Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Glide, ORfailure of the pilot to maintain clearance from a power transmission line. Factors relating to the accident included ambient light conditions, which made the power line hard to see.NTSB SEA94LA109Accident · Minor injuriesLimited investigationFinal reportBell 206B · Summerville, ORThe pilot did not maintain clearance from the wires. The overcast sky condiiton was a factor.NTSB SEA92LA088Accident · No injuriesLimited investigationFinal reportHughes 369E · Hillsboro, ORThe pilot in command's excessive application of collective.NTSB SEA85LA020Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Kings Valley, ORThe plt attempted to fly the acft away from the site of a proposed load drop before the drop was completed. The FAA inspectors said the sling did not release properly. When the plt attempted to depart the area the acft struck the groundin a nose low attitude.…NTSB SEA80FYM12Accident · No injuriesClosedHiller Acft UH-12E · Willamina, ORNTSB SEA79FYK05Accident · No injuriesClosedHiller Acft UH-12E · Springfield, OR