Final NTSB investigations: Lycoming TI0-540 series, 2025
11 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\") = 2025
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") = 2025
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 ERA26LA053Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-23-250 · Clewiston, FLThe pilot’s failure to maintain directional control of the airplane during the landing roll.NTSB ANC25LA117Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31 · Kotlik, AKThe pilot’s failure to extend the landing gear before landing.NTSB ERA25LA314Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32R · Miami, FLAn inflight loss of hydraulic fluid from the landing gear system through a cracked fitting, which resulted in a landing gear collapse upon touchdown.NTSB CEN25LA228Accident · Minor injuriesClass 4 · LimitedFinal reportMooney M20M · Ben Bolt, TXThe pilot’s failure to maintain directional control while landing with a crosswind.NTSB CEN25LA220Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Ashland, WIThe pilot’s failure to extend the landing gear before landing and his failure to conduct the before landing checklist.NTSB WPR25LA183Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-32RT-300T · Winchester, IDThe pilot’s improper fuel management resulting in fuel starvation, a total loss of engine power, and a subsequent off-airport forced landing. Contributing to the accident was the pilot’s reduced fuel level monitoring due to an inflight distraction.NTSB ERA25FA201Accident · 1 fatalClass 3 · FieldFinal reportPiper PA32RT · Yulee, FLThe pilot’s exceedance of the airplane’s critical angle of attack during takeoff, which resulted in a stall/spin at an altitude too low for recovery. Contributing to the accident was the opening of the nose baggage door and subsequent distraction of the pilot…NTSB CEN25LA165Accident · No injuriesClass 3 · LimitedFinal reportCessna T206 · Natchez, MSMaintenance personnel’s improper maintenance, which resulted in a loss of engine power due to fuel starvation as the result of a loose fuel line B-nut. Contributing to the accident was an inadequate 100-hour inspection performed after the recent maintenance.NTSB ANC25LA032Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-300 · Redding, CAThe pilot's failure to maintain a stabilized approach and his delayed action to perform a go-around, resulting in a collision with the runway surface.NTSB ANC25LA016Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31-350 · Fairbanks, AKThe pilot’s failure to recognize that an automated taxiway gate was closing, and the pilot’s failure stop for the closing gate.NTSB WPR25LA080Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA-32-300 · Round Mountain, NVImpact with mountainous terrain for reasons that could not be determined due to a lack of available evidence.