NTSB investigations: Allison 250-C30 series, LA

8 cases on aircraft whose registry engine model is Allison 250-C30 series. 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

19852026

NTSB investigations: Allison 250-C30 series, LA per year, 1985–2026: 8 cases
1985	1
1996	1
1997	1
2001	2
2005	1
2006	1
2011	1

Where

Open the map

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."eventStateOrRegion" = 'LA' 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 ('03015')) 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.\"eventStateOrRegion\" = 'LA' 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 ('03015'))
  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" = 'LA' 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 ('03015'))
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 CEN11CA232Accident · No injuriesData collectionFinal reportBell 230 · Gulf of Mexico, LAThe pilot's failure to maintain adequate clearance from the safety skirting during the repositioning landing.Mar 17, 2011 · N974RH · Substantial damage NTSB DFW06FA083Accident · 2 fatalField investigationFinal reportBell 206L-1 · Patterson, LAThe improper installation of an engine fuel line fitting by other maintenance personnel, which resulted in a loose fitting and a loss of engine power during cruise flight. Factors associated with the accident are a tailwind, and the lack of a suitable site…Mar 14, 2006 · N370RL · Destroyed NTSB DFW05LA074Accident · No injuriesLimited investigationFinal reportBell 206L-3 · Cameron, LAFuel starvation due to a blocked and collapsed fuel nozzle screen, resulting from a contaminated fuel source/facility. Factors were the inadequate maintenance/inspection of fuel sources, and the lack of suitable terrain (high sea state) for the forced landing…Feb 18, 2005 · N512RA · Substantial damage NTSB FTW01LA195Accident · Serious injuriesLimited investigationFinal reportBell 206L-3 · Cameron, LAfuel contamination due to the combination of DIEGME, water, and bacterial growth, which resulted in formation of an apple-jelly type material that blocked the fuel nozzle screen and led to a loss of engine power.Aug 24, 2001 · N350AL · Destroyed NTSB FTW01LA176Accident · No injuriesLimited investigationFinal reportSikorsky SK-76A · New Iberia, LAthe loss of control while maneuvering for undetermined reasons.Jul 10, 2001 · N164AG · Substantial damage NTSB FTW97LA356Accident · Serious injuriesLimited investigationFinal reportSikorsky S-76A · Patterson, LAfailure of the copilot to maintain a positive rate of climb after takeoff, which led to an inadvertent descent and collision with a crop of sugar cane and the ground. Factors relating to the accident were: darkness, fog, and the pilot-in-command's inadequate…Sep 22, 1997 · N517AL · Substantial damage NTSB FTW97LA016Accident · No injuriesLimited investigationFinal reportBell 206L-3 · Venice, LAa loss of engine power due to frogs being ingested into the engine as a result of the pilots failure to perform a thorough preflight, and the pilot's improper touchdown technique.Oct 14, 1996 · N21497 · Substantial damage NTSB FTW85LA119Accident · Minor injuriesLimited investigationFinal reportSikorsky S-76A · Houma, LAThe aircrew had just completed a medivac flt & were repositioning the helicopter to the home base. While they were en route, the company dispatcher informed the crew that fog was moving into the area & that they had better hurry. During the night apch, the…Feb 19, 1985 · N31223 · Destroyed