Final NTSB investigations: Lycoming TI0-540 series, 2026
5 cases on aircraft whose registry engine model is Lycoming TI0-540 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
| 1964 | 9 |
|---|---|
| 1965 | 27 |
| 1966 | 32 |
| 1967 | 49 |
| 1968 | 48 |
| 1969 | 47 |
| 1970 | 48 |
| 1971 | 63 |
| 1972 | 45 |
| 1973 | 51 |
| 1974 | 62 |
| 1975 | 46 |
| 1976 | 52 |
| 1977 | 58 |
| 1978 | 68 |
| 1979 | 65 |
| 1980 | 57 |
| 1981 | 55 |
| 1982 | 47 |
| 1983 | 40 |
| 1984 | 46 |
| 1985 | 43 |
| 1986 | 43 |
| 1987 | 35 |
| 1988 | 30 |
| 1989 | 32 |
| 1990 | 13 |
| 1991 | 29 |
| 1992 | 27 |
| 1993 | 24 |
| 1994 | 22 |
| 1995 | 27 |
| 1996 | 28 |
| 1997 | 23 |
| 1998 | 19 |
| 1999 | 25 |
| 2000 | 35 |
| 2001 | 41 |
| 2002 | 45 |
| 2003 | 36 |
| 2004 | 41 |
| 2005 | 41 |
| 2006 | 48 |
| 2007 | 31 |
| 2008 | 30 |
| 2009 | 28 |
| 2010 | 31 |
| 2011 | 23 |
| 2012 | 30 |
| 2013 | 26 |
| 2014 | 25 |
| 2015 | 29 |
| 2016 | 21 |
| 2017 | 21 |
| 2018 | 19 |
| 2019 | 20 |
| 2020 | 28 |
| 2021 | 15 |
| 2022 | 22 |
| 2023 | 27 |
| 2024 | 14 |
| 2025 | 11 |
| 2026 | 5 |
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 year(c.\"eventDate\") = 2026
AND 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 ('41533'))
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 year(c."eventDate") = 2026
AND 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 ('41533'))
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 ERA26LA336Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-300 · West Kingston, RIThe pilot’s failure to bring the airplane to a stop on the available runway, which resulted in a runway excursion.NTSB CEN26LA300Accident · Minor injuriesClass 4 · LimitedFinal reportCessna T206H · Marble, COThe pilot's failure to maintain directional control during the final approach in variable and gusting wind conditions. Contributing to the accident were localized wind effects associated with mountainous terrain and with nearby convective activity.NTSB CEN26LA170Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA 31P 350 · Ardmore, OKThe pilot’s failure to maintain control of the airplane while landing on a wet runway with a tailwind.NTSB CEN26LA159Accident · No injuriesClass 4 · LimitedFinal reportPiper PA46 · Burke, TXThe airplane’s encounter with unexpected low-level wind shear during final approach, which resulted in a hard impact with the runway.NTSB ERA26LA150Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Athens, GAThe pilot’s failure to extend the landing gear before landing.