NTSB investigations: Allison 250-C30 series

8 cases on aircraft whose registry engine model is Allison 250-C30 series, where the first occurrence was “In flight collision with object”. 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

19992026
NTSB investigations: Allison 250-C30 series per year, 1999–2026: 8 cases
19992
20001
20022
20041
20051
20061

Latest 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03015')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 220))
  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.

NTSB SEA06CA161Accident · No injuriesData collectionFinal reportBell 206L-3 · Salt Lake City, UTThe failure of the pilot to maintain clearance by allowing the helicopter to drift backwards, resulting in its tail rotor striking a hangar.Aug 11, 2006 · N206UH · Substantial damageNTSB DFW05CA213Accident · No injuriesData collectionFinal reportBell 206L · Gulf of MexicoThe pilot's failure to maintain clearance with a stationary object while landing.Aug 17, 2005 · N330P · Substantial damageNTSB LAX04CA268Accident · No injuriesData collectionFinal reportMcDonnell Douglas 369FF · Lihue, HIThe pilot misjudging the clearance between the tree and the main rotor blades. Contributing factors to the accident were the high workload of the pilot and his lack of experience with bambi bucket operations.Jul 16, 2004 · N530RL · Substantial damageNTSB DEN02LA101Accident · Serious injuriesLimited investigationFinal reportBell 206L-III · Canon City, COthe pilot's failure to maintain clearance of a static wire, and the subsequent loss of aircraft control due to the main rotor pitch change tubes being severed.Aug 30, 2002 · N43GA · DestroyedNTSB NYC02LA083Accident · No injuriesLimited investigationFinal reportBell 206-L3 · New York, NYThe pilot's improper flare while landing, which resulted in a collision with a concrete curb.Apr 13, 2002 · N19TD · Substantial damageNTSB SEA00TA182Accident · No injuriesFinal reportBell 206-L4 · Atlanta, IDThe pilot's failure to maintain clearance from an object. Trees and inadequate ground communications were a factor.Sep 21, 2000 · N3310 · Substantial damageNTSB SEA00LA020Accident · No injuriesLimited investigationFinal reportBell 206L-1 · Neihart, MTClearance from an object was not maintained. Gusting wind conditions was a factor.Nov 17, 1999 · N519EH · Substantial damageNTSB FTW99LA077Accident · No injuriesLimited investigationFinal reportBell 206L-3 · West Delta 105bThe pilot's failure to maintain clearance with the oil platform's windsock on final approach to landing.Feb 1, 1999 · N6603X · Substantial damage