NTSB investigations: Allison 250 SER 250HP, OR
13 cases on aircraft whose registry engine model is Allison 250 SER 250HP. 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
| 1973 | 1 |
|---|---|
| 1978 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1988 | 1 |
| 1990 | 1 |
| 1994 | 1 |
| 1996 | 2 |
| 2002 | 1 |
| 2003 | 1 |
| 2011 | 1 |
| 2021 | 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 ('03002', '03003'))
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 ('03002', '03003'))
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 WPR21LA333Accident · Serious injuriesClass 4 · LimitedFinal reportBell Helicopter Textron 206L-1 · Glide, ORThe pilot’s failure to maintain clearance from a tree during an aerial application.NTSB WPR12LA036Accident · Serious injuriesLimited investigationFinal reportBell 206B · Woodburn, ORThe pilot’s failure to maintain ground clearance while maneuvering with an external load line.NTSB SEA04LA005Accident · 2 fatalLimited investigationFinal reportBell 206B · Swisshome, ORThe pilot's failure to maintain clearance from power lines while maneuvering. The power line, mountainous terrain with high obstructions (thick trees and underbrush) and the operators failure to maintain a "hazard map" as indicated in their procedures manual…NTSB SEA02LA135Accident · Serious injuriesLimited investigationFinal reportMcDonnell Douglas 369D · Medford, ORPower loss during cruise flight for undetermined reasons. Factors include mountainous terrain and trees.NTSB SEA97LA029Accident · Serious injuriesLimited investigationFinal reportBell 206B3 · Ballston, ORa loss of control for undetermined reasons.NTSB SEA96LA070Accident · Minor injuriesLimited investigationFinal reportBell 206B · La Grande, ORthe pilot's failure to maintain clearance with trees after pulling up from an aerial application spray run.NTSB SEA95LA023Accident · Serious injuriesLimited investigationFinal reportFairchild Hiller FH-1100 · Yamhill, ORFailure of the pilot to maintain adequate altitude/clearance, while maneuvering to a hover, which allowed the external load cable/hook to become snagged and to rebound into the path of the main rotor blades.NTSB SEA91LA023Accident · No injuriesLimited investigationFinal reportHughes 369D · Mulina, ORIn-flight collision with a rebounding long-line, which caused main-rotor RPM decay and tail-boom separation, compromising the pilot's ability to successfully accomplish an attempted autorotation.NTSB SEA88FA050Accident · Serious injuriesField investigationFinal reportBell 206A · Roseburg, ORWhile hovering at 200' AGL, the eng lost power & the plt entered an autorotation. He maneuvered to avoid trees & landed amid tree stumps in a logging clear cut area. An investigation revealed the 1st stage turbine wheel had failed. The wheel exited the eng &…NTSB SEA83FA040Accident · No injuriesField investigationFinal reportBell 206B · Newport, ORThe helicopter was lifting off when the left skid stuck in the dirt. The acft did a dynamic rollover when the left skid remained stuck as the pilot attempted to takeoff. The pilot had just on-loaded two passengers both on the left side. Weather was not a…NTSB SEA82FYM16Accident · Minor injuriesFinal reportHughes 369D · Birkenfeld, ORThe pilot stated that the fuel gauge indicated 150 lbs of fuel remaining when he began the flight. Since the drop point was within 2 to 3 minutes of the departure point, he elected to proceed without refueling. While hovering and being guided into the drop…NTSB SEA78FYM33Accident · Serious injuriesClosedBell 206B · Tillamook, ORNTSB SEA74DYI01Accident · No injuriesClosedHiller FH1100 · Cave Jctn, OR