Final NTSB investigations: Continental IO-540 series

10 cases on aircraft whose registry engine model is Continental IO-540 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.

Cases per year

19992026
Final NTSB investigations: Continental IO-540 series per year, 1999–2026: 10 cases
19991
20031
20082
20101
20151
20172
20241
20251

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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17051'))
  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 CEN25LA359Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Nashville, ARThe pilot’s inadequate fuel planning which resulted in a total loss of power due to fuel exhaustion. Contributing to the accident was the landing zone being unlit.Aug 31, 2025 · N442PR · Substantial damageNTSB ERA24LA244Accident · No injuriesClass 4 · LimitedFinal reportRuth Hummingbird · New Hill, NCThe pilot's failure to maintain control of the helicopter while hovering.Jun 1, 2024 · N331PF · Substantial damageNTSB GAA17CA450Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 · Dunlap, ILThe pilot’s failure to visually confirm that the helicopter was disconnected from hoses during refueling operations. Contributing to the accident was the pilot’s and ground crew’s misunderstanding of the hand signals.Jul 31, 2017 · N344MM · Substantial damageNTSB GAA17CA165Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 · Spofford, TXThe pilot's decision to hover-taxi out of the hangar and his subsequent failure to maintain clearance from the hangar.Feb 19, 2017 · N804DF · Substantial damageNTSB GAA15CA232Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 II · Prairie Lea, TXThe pilot's failure to maintain rotor rpm, resulting in an uncontrolled descent and collision with trees.Jul 16, 2015 · N804DF · Substantial damageNTSB ANC10FA048Accident · 1 fatalField investigationFinal reportCessna U206F · Anchorage, AKThe pilot’s decision to load the airplane well beyond its allowable weight and center of gravity limits, resulting in a loss of control during the initial climb. Contributing to the severity of the injuries was the pilot’s decision to allow two child…Jun 2, 2010 · N59352 · Substantial damageNTSB DFW08CA177Accident · Minor injuriesData collectionFinal reportRobinson R44 II · Canyon Lake, TXA total loss of tail rotor effectiveness. Contributing to the accident was the pilot's improper decision to operate inside the height velocity curve.Jul 5, 2008 · N804DF · Substantial damageNTSB CHI08CA177Accident · No injuriesData collectionFinal reportRobinson R44 II · Ottawa, ILThe pilot's failure to maintain clearance from the power transmission lines. Contributing to the accident was the unmarked power transmission lines.Jul 4, 2008 · N31138 · Substantial damageNTSB ANC03CA114Accident · No injuriesData collectionFinal reportCessna 206 · Ketchikan, AKThe pilot's selection of an unsuitable takeoff area, which resulted in an in-flight collision with ocean waves. A factor associated with the accident was large waves/swells.Aug 14, 2003 · N59352 · Substantial damageNTSB DEN99LA167Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Rifle, COThe pilot's failure to maintain aircraft control during landing roll. Factors were the strong crosswind weather conditions, and the runway sign that the airplane impacted.Sep 19, 1999 · N323DT · Substantial damage