NTSB investigations: Allison 250 SER 400HP, WA
14 cases on aircraft whose registry engine model is Allison 250 SER 400HP. 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
| 1972 | 1 |
|---|---|
| 1975 | 1 |
| 1977 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1982 | 1 |
| 1985 | 1 |
| 1987 | 2 |
| 1990 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2002 | 1 |
| 2004 | 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\" = 'WA' 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 ('03013', '03012'))
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" = 'WA' 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 ('03013', '03012'))
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 SEA04LA090Accident · No injuriesLimited investigationFinal reportBell 206B · Auburn, WALoss of control for undetermined reasons.NTSB SEA02LA172Accident · No injuriesLimited investigationFinal reportHughes 500 · Carnation, WAThe pilot's delayed power application during a practice power recovery autorotation.NTSB SEA99LA082Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Southbend, WAThe complete loss of power, due to a failure of the compressor impeller disk. Factors include the low altitude of the helicopter at the time of the power loss, and the need to autorotate in a confined area.NTSB SEA97LA118Accident · No injuriesLimited investigationFinal reportHughes 369D · Moclips, WAInadequate installation of the fuel control by company maintenance personnel and a loose nut on a line. A disconnected Pc line was a factor.NTSB SEA90LA081Accident · 1 fatalLimited investigationFinal reportHughes 369D · Kelso, WAFailure of the pilot to keep the external load clear of obstacles (trees). Factors related to the accident were: failure of the pilot and ground crewman to follow safety procedures, and the proximity of the trees.NTSB SEA87LA079Accident · No injuriesLimited investigationFinal reportHughes 369HS · Yakima, WASix miles from the airport, at cruise, the engine ceased operating due to fuel exhaustion. The plt had noticed the low fuel warning light on 10 minutes prior to the engine failure but elected to continue his flight. Autorotation was made from 1,000 feet AGL…NTSB SEA87LA059Accident · No injuriesLimited investigationFinal reportBell 206B-III · Dayton, WAPlt lifted off with fertilizer bucket on 3-FT external hook. As fwd motion commenced, acft settled slightly, dragging bucket on ground and tipping it over. Plt attempted to recover by backing up, but skid caught on bucket, causing loss of control.NTSB SEA85LA053Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Taholah, WAThe acft had lifted off during an external load operation when the plt felt a 'vibration/shudder'. The right skid contacted the ground and the helicopter rolled over during an attempt to maneuver the helicopter away from ground personnel. Inspection revealed…NTSB SEA82DA055Accident · No injuriesFinal reportHughes 500C · Darrington, WADuring an approach to a 9100 foot high snow covered landing site the wind shifted to a tailwind condition. The pilot elected to continue and attempted a skid on landing. While skidding through the snow the left skid impacted rising terrain underneath a 12…NTSB SEA80DYE14Accident · No injuriesClosedHughes 369 · Redmond, WANTSB SEA79FYP17Accident · Minor injuriesClosedHughes 369D · Spokane, WANTSB SEA78DYP03Accident · No injuriesClosedHughes 369D · Spokane, WANTSB SEA7LFYE02Accident · Minor injuriesClosedHughes 369HS · Elma, WANTSB SEA72DYE38Accident · Minor injuriesClosedHughes 500 · Longmire, WA