NTSB investigations: Allison 250 SER 400HP, CA
33 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
| 1969 | 1 |
|---|---|
| 1975 | 2 |
| 1976 | 1 |
| 1977 | 1 |
| 1978 | 2 |
| 1979 | 1 |
| 1980 | 3 |
| 1981 | 2 |
| 1984 | 1 |
| 1985 | 1 |
| 1987 | 1 |
| 1990 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2007 | 1 |
| 2009 | 1 |
| 2011 | 2 |
| 2016 | 2 |
| 2022 | 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\" = 'CA' 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" = 'CA' 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 WPR22LA221Accident · No injuriesClass 3 · LimitedFinal reportBell 206B · Stockton, CATail rotor blade impact with an unidentified object, which resulted in the loss of control and subsequent rollover of the helicopter.NTSB GAA16CA408Accident · No injuriesData collectionFinal reportBell Helicopter Textron 206 · Modesto, CAThe pilot's failure to maintain pitch control during an autorotation, which resulted in abnormal ground contact and main rotor contact with the tail boom. Contributing to the accident was the low fuel level which resulted in fuel starvation and a loss of…NTSB GAA16CA165Accident · Minor injuriesData collectionFinal reportBell 206B · Hanford, CAThe pilot's decision to release the collective while flying at 10 feet above ground level, resulting in the rapid helicopter descent and impact with terrain.NTSB WPR12LA022Accident · Minor injuriesLimited investigationFinal reportMcdonnell Douglas 500D · Colusa, CAA total loss of engine power while maneuvering at low altitude for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation. Contributing to the accident severity was the…NTSB WPR11TA274Accident · No injuriesFinal reportBell 206B · Franklin, CAThe student pilot's failure to maintain rotor rpm during the practice autorotation.NTSB WPR09LA144Accident · Minor injuriesLimited investigationFinal reportMD Helicopter 369D · Trona, CAThe pilot's failure to maintain control while landing in a high density altitude environment due to a loss of tail rotor effectiveness.NTSB SEA07CA258Accident · Minor injuriesData collectionFinal reportBell 206-B2 · Rosamond, CAThe pilot's inadequate compensation for gusting variable winds encountered after landing. Factors include gusting, suddenly shifting winds, and a hangar near the spot where the helicopter had landed.NTSB LAX04LA281Accident · Serious injuriesLimited investigationFinal reportBell 206B · Little Valley, CAthe pilot's failure to maintain an adequate clearance from objects and terrain while maneuvering at low altitude. Factors in the accident were the high, rising terrain, and the high density altitude.NTSB LAX03CA279Accident · No injuriesData collectionFinal reportBell 206B · Long Beach, CAthe pilot's inadequate remedial action in response to a loss of tail rotor effectiveness.NTSB LAX01LA243Accident · No injuriesLimited investigationFinal reportBell 206B · San Francisco, CAThe failure of the accessory gearbox 2 1/2 bearing in fatigue resulting in the complete loss of engine power and a subsequent forced landing. The pilot's failure to maintain directional control during the autorotational flare maneuver is also causal. The…NTSB LAX99LA293Accident · No injuriesLimited investigationFinal reportBell 206B · Delhi, CAThe loss of engine power due to the pilot's inadequate preflight, which failed to detect water contamination of the fuel system. The operator's inadequate maintenance of the loose fitting fuel cap and the deformed filler opening, which allowed water to leak…NTSB LAX97LA317Accident · Minor injuriesLimited investigationFinal reportBell 206B · Napa, CAFailure of the pilot to perform an adequate preflight, which resulted in him failing to notice and release the tie down chains.NTSB LAX96LA346Accident · No injuriesLimited investigationFinal reportBell 206B · Fillmore, CAthe flight instructor's inadequate supervision and delay in taking remedial action to stop the aircraft's lateral movement, which resulted in a dynamic rollover after touchdown.NTSB LAX96FA076Accident · 1 fatalField investigationFinal reportHughes 369D · Feather Falls, CAthe pilot's failure to jettison his external load after it came in contact with trees and terrain. The pilot's failure to maintain altitude/clearance above trees and hilly terrain was a related factor.NTSB LAX95LA052Accident · No injuriesLimited investigationFinal reportBell 206B · Julian, CAthe failure of the pilot to maintain a proper alignment during hover in a mountainous area.NTSB LAX93LA258Accident · No injuriesLimited investigationFinal reportBell 206B3 · Stoneyford, CAthe pilot's inadequate compensation for the existing wind conditions during a hover operation. A factor in the accident was the high density altitude and the gusting, variable wind conditions.NTSB LAX90TL#03Accident · Minor injuriesClass 3Final reportBell 206B · La Verne, CANTSB LAX87LA179Accident · Minor injuriesLimited investigationFinal reportBell 206B-II · Yucaipa, CAA Bell 206B went out of control and crashed while lndg at a 5,720 ft high helipad. The plt indicated that he terminated the aprch at a 8-10 ft hover and began to spin to the right with full left pedal applied. After 1 1/2 to 2 turns the plt atmptd to fly out…NTSB LAX85FA101Accident · Minor injuriesField investigationFinal reportBell 206B · Trimmer, CAThe plt stated the helicopter lost pwr during cruise when he attempted to add pwr to climb. He stated that N2 decreased along with the activation of visual and audio engine out warnings. An autorotation was performed to a road, however, the helicopter slid…NTSB LAX84LA488Accident · Serious injuriesLimited investigationFinal reportBell 206B · Paso Robles, CAPlt stated that after receiving a special VFR clearence he took off to spray a nearby field. He continued to state that he 'made a couple of circuits over the field, observed the telephone wires and began spraying. After performing 2 or 3 passes I hit some…NTSB LAX82DUM05Accident · Minor injuriesClosedHughes 369 · Winterhaven, CANTSB LAX81DVA27Accident · No injuriesClosedHughes 369D · Madera, CANTSB LAX80DVA44Accident · No injuriesClosedBell 206B · Firebaugh, CANTSB LAX80FVG36Accident · No injuriesClosedHughes 369HS · Georgetown, CANTSB LAX80FA036CaseClosedHughes 369D · June Lakes, CANTSB LAX79FVA11Accident · Minor injuriesClosedBell 206 · Long Beach, CANTSB OAK79FVD01Accident · Serious injuriesClosedHughes 500D · Garberville, CANTSB LAX78FUM34Accident · No injuriesClosedBell 206B · Holtville, CANTSB OAK77FA038Accident · Minor injuriesClosedHughes 369HS · Mt Darwin, CANTSB OAK76AP057Accident · 2 fatalClosedBell 206B · Bishop, CANTSB OAK76FVG27Accident · No injuriesClosedBell 206B · Alder Springs, CANTSB LAX76AL015Accident · Minor injuriesClosedBell 206B · Van Nuys, CANTSB OAK70F0003Accident · Minor injuriesClosedHiller FH1100 · Lincoln, CA