NTSB investigations: Rolls-Royce 250-C47B

5 cases on aircraft whose registry engine model is Rolls-Royce 250-C47B, where the defining event was Loss of control in flight. 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

20092026
NTSB investigations: Rolls-Royce 250-C47B per year, 2009–2026: 5 cases
20091
20121
20131
20221
20231

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 ('54585')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '240'))
  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 ERA24FA003Accident · 1 fatalClass 3 · FieldFinal reportBell Helicopter Textron Canada 407 · Croydon, NHThe pilot’s loss of control during the initial climb in dark night conditions due to spatial disorientation, which resulted in a steep banking descent into trees and terrain. Contributing to the accident was the pilot’s lack of recent night flight experience,…Oct 8, 2023 · N802JR · Substantial damageNTSB ERA22FA257Accident · Serious injuriesClass 3 · FieldFinal reportBell Helicopter Textron Canada 407 · Fairfield, NJThe failure of maintenance personnel to properly secure the tail rotor crosshead drive plate and the failure of maintenance personnel, the maintenance pilot, and the accident pilot to detect the error, which led to the helicopter’s loss of tail rotor…Jun 4, 2022 · N98ZA · Substantial damageNTSB CEN13FA122Accident · 3 fatalField investigationFinal reportBell Helicopter 407 · Clear Lake, IAThe pilot’s inadvertent encounter with localized icing conditions and his subsequent in-flight loss of helicopter control.Jan 3, 2013 · N445MT · DestroyedNTSB WPR12GA106Accident · 1 fatalFinal reportBell 407 · Moran Junction, WYThe pilot’s failure to maintain yaw control while hovering at high density altitude, which resulted in a loss of tail rotor effectiveness.Feb 15, 2012 · N407HL · Substantial damageNTSB CEN09CA604Accident · No injuriesData collectionFinal reportBell 407 · Fort Worth, TXFailure of the pilot to maintain control during landing.Sep 23, 2009 · N6040Y · Substantial damage