NTSB investigations: Allison 250 SER 400HP, 1985
8 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 | 2 |
|---|---|
| 1972 | 3 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 7 |
| 1976 | 7 |
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 10 |
| 1980 | 16 |
| 1981 | 6 |
| 1982 | 7 |
| 1983 | 5 |
| 1984 | 3 |
| 1985 | 8 |
| 1986 | 5 |
| 1987 | 8 |
| 1988 | 3 |
| 1989 | 7 |
| 1990 | 7 |
| 1991 | 5 |
| 1992 | 2 |
| 1993 | 5 |
| 1994 | 3 |
| 1995 | 5 |
| 1996 | 7 |
| 1997 | 7 |
| 1998 | 4 |
| 1999 | 4 |
| 2000 | 3 |
| 2001 | 5 |
| 2002 | 2 |
| 2003 | 6 |
| 2004 | 5 |
| 2005 | 4 |
| 2006 | 1 |
| 2007 | 4 |
| 2008 | 2 |
| 2009 | 2 |
| 2010 | 4 |
| 2011 | 4 |
| 2013 | 2 |
| 2015 | 5 |
| 2016 | 4 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 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 year(c.\"eventDate\") = 1985
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 year(c."eventDate") = 1985
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 NYC85FA245Accident · 1 fatalField investigationFinal reportBell 206B · Chalkhill, PAThe helicopter was being used on an external load operation with a 100 ft cable attached. When a 618 lb load was ready to be moved, the plt started the eng, lifted off & moved the helicopter to a hover over the load. The loaders hooked the load to the cable &…NTSB SEA85LA214Accident · Minor injuriesLimited investigationFinal reportBell 206BII · Atlanta, IDA loss of pwr occurred shortly before touchdown. The left skid struck a rock during touchdown causing the acft to roll onto its right side. Twenty-five flt hrs prior to this flt an identical situation occurred and a loose air line to the fuel control was…NTSB CHI85LA303Accident · No injuriesLimited investigationFinal reportBell 206BII · Farmington, MNDuring maneuvering to ld in an uncultivated fld the tail rotor struck a fence post,from a dismantled fence,that was concealed by high weeds. One tail rotor blade was separated,the pilot lost control,and on touchdown the helicopter rolled over.NTSB ATL85FA170Accident · 2 fatalField investigationFinal reportBell 206L · Duluth, GAAfter loading a seriously burned patient in the helicopter, the plt started the eng & lifted off from the hospital parking lot. Immediately after lift-off, he started forward translational flt. About 65 ft from the lift-off point, an advancing main rotor…NTSB LAX85FA217Accident · Minor injuriesField investigationFinal reportBell 206-L1 · Kailua/Kona, HIA revenue sight-seeing helicopter flight operating under 14 CFR 91 collided with lava rock while attempting a forced landing on the summit of muana loa volcano after a partial loss of power. The pilot stated that while in a shallow downwind turn at aprx 200…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 LAX85LA116Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Makakilo, HIOn an air taxi flt, after landing at a prearranged site the plt signaled to his 3 pax to board the helicopter. As the pax attempted to board from the right side of the acft, the rotor blades went out of track/phase. The acft began uncontrollable bouncing up…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…