Fatal NTSB investigations: Lycoming IO-540-AE1A5
23 cases on aircraft whose registry engine model is Lycoming IO-540-AE1A5. 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
| 2008 | 1 |
|---|---|
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2019 | 2 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 2 |
Where
Open the mapLatest 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.\"highestInjuryLevel\" = 'Fatal'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41899'))
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."highestInjuryLevel" = 'Fatal'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41899'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 CEN25FA183Accident · 1 fatalClass 3 · FieldPreliminary reportRobinson Helicopter R44 II · Miami, TXOn May 23, 2025, about 0718 central daylight time, a Robinson Helicopter Company R44 II helicopter, N1195P, was destroyed when it was involved in an accident near Miami, Texas. The student pilot was fatally injured. The helicopter was operated as a Title 14…NTSB CEN25FA104Accident · 2 fatalClass 3 · FieldPreliminary reportRobinson Helicopter R44 · Uvalde, TXOn February 27, 2025, about 1319 central standard time, a Robinson Helicopter Company (RHC) R44 helicopter, N144SG, sustained substantial damage when it was involved in an accident near Uvalde, Texas. The commercial pilot and the passenger sustained fatal…NTSB CEN25FA034Accident · 3 fatalClass 3 · FieldPreliminary reportRobinson Helicopter R44 II · Iowa, LAOn November 1, 2024, about 2106 central daylight time, a Robinson R-44 II helicopter, N62CD, was destroyed when it was involved in an accident near Iowa, Louisiana. The pilot and two passengers were fatally injured. The helicopter was operated as a Title 14…NTSB ANC24FA063Accident · 3 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 · Kekaha, HIAn encounter with turbulence due to downdraft winds that resulted in mast bumping and an in-flight breakup.NTSB WPR24FA200Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Bluestem, WAThe pilot’s failure to manage main rotor rpm during an autorotation, which resulted in a loss of helicopter control. Contributing to the accident was a loss of power for reasons that could not be determined.NTSB CEN23FA142Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Port Allen, LAThe pilot’s decision to continue the visual flight rules flight into deteriorating weather conditions, which resulted in spatial disorientation and the loss of aircraft control.NTSB CEN22FA288Accident · 1 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Blackwell, TXThe pilot’s failure to maintain proper altitude and clearance during low-level aerial application, resulting in an in-flight collision with power lines.NTSB ERA22FA098Accident · 4 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Bronson, FLA loss of control due to spatial disorientation as a result of the noninstrument-rated pilot’s improper decision to attempt a visual flight rules flight at night into an area of known reduced visibility due to fog.NTSB ERA22FA010Accident · 1 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Cornwall, NYThe non-instrument-rated pilot’s continued flight into deteriorating weather conditions, which resulted in a loss of control due to spatial disorientation.NTSB ERA21LA295Accident · 2 fatalClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Point Harbor, NCThe noncertificated pilot’s decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation over a large body of water and a high velocity impact with the water. Contributing to the accident…NTSB CEN21FA330Accident · 1 fatalClass 3 · FieldFinal reportRobinson R44 · Elgin, MNThe pilot’s decision to operate the helicopter under powerlines, which resulted in a main rotor blade striking a powerline, causing the helicopter to descend from a low altitude and impact terrain.NTSB CEN19FA160Accident · 3 fatalClass 3 · FieldFinal reportRobinson R44 · Cass, ARA loss of engine power for reasons that could not be determined based on the available information.NTSB ERA19FA142Accident · 1 fatalField investigationFinal reportRobinson R44 II · Tampa, FLContamination of and an inadequate bond between the two layers of fabric comprising the helicopter engine's air induction inlet duct, which resulted a partial collapse of the duct, obstruction of the airflow into the engine, and a total loss of engine power.NTSB CEN17FA209Accident · 1 fatalField investigationFinal reportRobinson Helicopter R44 II · Dimmitt, TXThe pilot's incapacitation due to scarring from previous heart attacks and severe hypertrophy of the left ventricular wall which resulted in arrhythmia and a loss of control while maneuvering at low altitude.NTSB ERA15FA164Accident · 3 fatalField investigationFinal reportRobinson Helicopter R44 II · Orlando, FLAn inflight loss of control due to the likely detachment of the forward left servo control tube upper rod end attachment bolt.NTSB WPR15FA051Accident · 2 fatalField investigationFinal reportRobinson Helicopter R44 · Bountiful, UTThe pilot/mechanic's failure to properly secure the pitch link hardware of one main rotor blade to the rotating swash plate, which resulted in the pitch link separating in flight and a subsequent loss of control.NTSB CEN13FA517Accident · 3 fatalField investigationFinal reportRobinson R44 II · Caballo, NMThe pilot’s failure to see and avoid power lines while maneuvering near the ground because dust stirred up by the rotor wash obscured his visibility.NTSB CEN13FA295Accident · 2 fatalField investigationFinal reportRobinson Helicopter R44 II · Cross Timbers, MOThe pilot's failure to see and avoid a power line during the low-altitude flight.NTSB WPR13FA054Accident · 1 fatalField investigationFinal reportRobinson Helicopter R44 II · Corona, CAThe pilot's failure to maintain clearance between the helicopter’s main rotor blades and the metal canopy of a fuel island.NTSB CEN13FA010Accident · 3 fatalField investigationFinal reportRobinson Helicopter R44 II · Blanco, TXThe pilot's loss of helicopter control as a result of spatial disorientation due to dark night conditions and marginal visual flight rules weather conditions.NTSB CEN11FA468Accident · 1 fatalField investigationFinal reportRobinson Helicopter R44 II · Rising Sun, INThe noninstrument-rated pilot's decision to continue the visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and failure to maintain clearance from terrain.NTSB ERA10FA403Accident · 2 fatalField investigationFinal reportRobinson Helicopter R44 II · Blairsville, GAThe non-instrument-rated pilot's continued visual flight into instrument meteorological conditions, which resulted in controlled flight into terrain.NTSB DFW08FA218Accident · 2 fatalField investigationFinal reportRobinson R44 II · Ridgedale, MOAn in-flight loss of control for undetermined reasons.