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NTSB investigations: Lycoming IO-540 series, 2020

15 cases on aircraft whose registry engine model is Lycoming 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

19642026

Where

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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 year(c.\"eventDate\") = 2020
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
  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 CEN20LA401Accident · 3 fatalClass 3 · LimitedFinal reportPiper PA32 · Kokomo, INThe pilot’s inadequate visual lookout, which resulted in a collision with a utility pole and the subsequent collision with terrain.Sep 20, 2020 · N8213X · DestroyedNTSB WPR20LA310Accident · Serious injuriesClass 3 · LimitedFinal reportVans RV4 · Clovis, NMThe pilot’s failure to maintain lateral control during initial climb due to distraction, which resulted in an in-flight upset and impact with terrain.Sep 19, 2020 · N250LB · Substantial damageNTSB ERA20LA323Accident · No injuriesClass 4 · LimitedFinal reportCessna 182 · Hollywood, FLThe pilot's failure to maintain directional control during a crosswind takeoff, which resulted in a collision with airport lights and a sign.Sep 18, 2020 · N234ME · Substantial damageNTSB CEN20LA330Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson R44 · Logan, IAThe failure of the lower actuator bearing support brackets, which resulted in the misalignment of the clutch actuator, a loss of belt tension on the main rotor drive system, and a subsequent forced landing.Aug 8, 2020 · N89LA · Substantial damageNTSB WPR20LA239Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV7 · Henefer, UTThe total loss of engine power due to the separation of the idler gear shaft bolts as a result of improper installation, which allowed for the idler gear to become disengaged.Jul 26, 2020 · N514BS · Substantial damageNTSB ERA20CA252Accident · Minor injuriesClass 4 · Data collectionFinal reportFurlong CA-6 · Manville, NJA loss of directional control on takeoff for undetermined reasons.Jul 14, 2020 · N12LF · Substantial damageNTSB ANC20CA068Accident · No injuriesClass 4 · Data collectionFinal reportRobinson R44 · Ketchikan, AKThe crew leader's decision to throw a chainsaw bar into the moving arc of the main rotor blade.Jul 10, 2020 · N878CB · Substantial damageNTSB WPR20CA197Accident · No injuriesClass 4 · Data collectionFinal reportRobinson R44 · Pioche, NVThe pilot’s decision to fly at low level over mountainous terrain and his inability to recover when the helicopter encountered a downdraft that resulted in a collision with terrain.Jun 28, 2020 · N7530B · Substantial damageNTSB ANC20LA050Accident · Serious injuriesClass 3 · LimitedFinal reportRockwell 500 · Aniak, AKA loss of engine power due to the use of improper fuel. Contributing to the accident was the failure of the pilot and ground personnel to ensure that the airplane was serviced with the proper fuel.May 29, 2020 · N909AK · Substantial damageNTSB WPR20LA135Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA-23-250 · Hemet, CAMaintenance personnel’s failure to properly inspect and replace damaged aileron control cables, which resulted in fatigue separation of the aileron control cable and loss of control of the aircraft.Apr 30, 2020 · N6521Y · Substantial damageNTSB CEN20CA100Accident · Minor injuriesData collectionFinal reportCommander 114 · Coldwater, MIThe flight instructor’s inadequate communication with the pilot under review about his intention to simulate a single-engine failure and his subsequent exceedance of the airplane’s critical angle of attack when the pilot did not respond as expected, which…Feb 22, 2020 · N374JW · Substantial damageNTSB ANC20CA023Accident · Minor injuriesClass 4 · Data collectionFinal reportRobinson R44 · Talkeetna, AKThe pilot's failure to maintain adequate clearance from snow covered terrain during an en route descent in flat light conditions, which resulted in controlled flight into terrain.Feb 21, 2020 · N716JL · Substantial damageNTSB CEN20CA086Accident · No injuriesData collectionFinal reportCessna 182 · Huron, SDThe pilot's failure to maintain adequate airspeed during final approach, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall at too low of an altitude to recover.Feb 15, 2020 · N2019A · Substantial damageNTSB ERA20CA098Accident · No injuriesData collectionFinal reportMaule M7 · Manchester, NHThe pilot's improper landing flare in crosswind conditions, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in a ground-loop.Feb 2, 2020 · N309MA · Substantial damageNTSB CEN20FA070Accident · 3 fatalClass 3 · FieldFinal reportPiper PA60 · Springfield, ILThe pilot’s failure to follow the instrument landing system (ILS) course guidance during the instrument approach.Jan 28, 2020 · N6071R · Destroyed