NTSB investigations: Lycoming IO-540-AE1A5, FL
10 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
| 2007 | 1 |
|---|---|
| 2009 | 1 |
| 2011 | 1 |
| 2015 | 1 |
| 2019 | 1 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 1 |
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.\"eventStateOrRegion\" = 'FL' AND c.\"eventCountry\" = 'USA'
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."eventStateOrRegion" = 'FL' AND c."eventCountry" = 'USA'
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 ANC26LA084Accident · Minor injuriesClass 3 · LimitedPreliminary reportRobinson Helicopter R44 II · Anthony, FLOn August 12, 2026, at approximately 2305 eastern daylight time, a Robinson R44 Raven II helicopter, N861MP, was substantially damaged when it was involved in an accident near Anthony, Florida. The pilot and passenger sustained minor injuries. The helicopter…NTSB ERA24LA118Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Miami, FLTail rotor contact with an unseen object while performing a precautionary landing to a closed helipad at night.NTSB ERA23LA228Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Bradenton, FLThe pilot’s failure to maintain adequate rotor rpm during landing which resulted in a premature landing on uneven ground and a subsequent rollover.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 ERA21LA387Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Miami, FLThe pilot’s loss of helicopter control after landing. Also causal was the pilot’s intentional operation of the helicopter without the required training, experience, and endorsements.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 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 ERA11CA180Accident · Serious injuriesData collectionFinal reportRobinson Helicopter R44 II · Weston, FLThe pilot's failure to maintain adequate altitude and physical alertness which resulted in an in-flight collision with the water. Contributing to the accident was the pilot's fatigue.NTSB ERA09LA421Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Dunedin, FLA partial loss of engine power for undetermined reasons.NTSB MIA07LA059Accident · No injuriesLimited investigationFinal reportRobinson R-44-II · Miami, FLThe pilot's failure to maintain sufficient rotor rpm during an autorotative landing, which resulted in a hard landing and separation of the tailboom.