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NTSB investigations: Allison 250-C10D

12 cases on aircraft whose registry engine model is Allison 250-C10D. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19792026

Where

Latest cases

Query with SQL

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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03035')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03035'))
  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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03035'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 CEN20LA187Accident · No injuriesClass 3 · LimitedFinal reportBell OH-58A · West Branch, MIThe pilot's failure to maintain rotor rpm during a precautionary autorotation, which resulted in a hard landing. Contributing to the accident was the airframe vibration for reasons that could not be determined because examination of the helicopter revealed no…May 20, 2020 · N153SA · Substantial damage NTSB CEN17LA336Accident · Serious injuriesLimited investigationFinal reportHughes 369A · Burnet, TXThe pilot's inadequate inflight decision making, which resulted in a total loss of engine power due to fuel exhaustion.Sep 2, 2017 · N50MP · Substantial damage NTSB GAA16LA182Accident · Serious injuriesLimited investigationFinal reportHughes 369 · Weatherford, TXThe pilot/mechanic's inadequate postmaintenance and preflight inspections, which resulted in his failure to remove the antitorque pedal lock and a subsequent loss of control during hover operations.Apr 8, 2016 · N298SD · Substantial damage NTSB ERA13LA022Accident · No injuriesLimited investigationFinal reportHughes/Helicopter Assocs 369A · West Chester, PAThe pilot’s failure to see and avoid the preceding helicopter while maneuvering for landing. Contributing to the accident were the flight lead pilot’s inadequate preflight briefing and in-flight instruction to the formation pilots, which resulted in the loss…Oct 13, 2012 · N546 · 2 aircraft · Substantial damage NTSB CEN11LA370Accident · Serious injuriesLimited investigationFinal reportBell 47G-3B-1 · Lakeville, MNThe loss of engine power due to a loose B-nut on the compressor discharge pressure bleed line.May 25, 2011 · N96SH · Substantial damage NTSB ANC09LA110Accident · No injuriesLimited investigationFinal reportHughes 369A (OH-6A) · Palmer, AKA partial loss of engine power after take off for an undetermined reason, which resulted in a hard landing.Sep 29, 2009 · N501SU · Substantial damage NTSB CEN09CA332Accident · No injuriesData collectionFinal reportHughes 369A · Baltimore, OHThe pilot's failure to attain a proper touchdown point, and his decision not to perform a go-around.May 30, 2009 · N298SD · Substantial damage NTSB ANC04LA087Accident · Serious injuriesLimited investigationFinal reportHughes OH-6A · Anchorage, AKA loss of tail rotor effectiveness during aerial taxi, and the pilot's delayed remedial action to counteract a rapid right yaw, which resulted in an in-flight loss of directional control, and in-flight collision with terrain. A factor contributing to the…Aug 6, 2004 · N243D · Substantial damage NTSB ATL01LA070Accident · No injuriesLimited investigationFinal reportHughes 369A · Wadesboro, NCThe pilot's inadequate pre-flight planning which resulted in fuel exhaustion and the subsequent loss of engine power. A factor was rough and uneven terrain.Jul 3, 2001 · N539 · Substantial damage NTSB SEA93LA030Accident · No injuriesLimited investigationFinal reportHughes 369HS · Scotts Mills, ORThe pilot in command's misjudged descent. Factors include the pilot in command's lack of experience in this type of operation.Nov 27, 1992 · N9228F · Substantial damage NTSB FTW92LA199Accident · Minor injuriesLimited investigationFinal reportHughes 369HS · Monroe, LAThe pilot's failure to maintain adequate rotor RPM during autorotation. Factors were the tailwind and the power loss for undetermined reasons.Aug 3, 1992 · N501FH · Substantial damage NTSB SEA79DYE11Accident · Minor injuriesClosedHughes 369HS · Aberdeen, WAJan 22, 1979 · N9256F · Substantial damage