NTSB investigations: Lycoming IO-540 series, 1991
14 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
| 1964 | 1 |
|---|---|
| 1965 | 2 |
| 1966 | 1 |
| 1967 | 4 |
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 3 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 4 |
| 1977 | 3 |
| 1978 | 6 |
| 1979 | 7 |
| 1980 | 18 |
| 1981 | 10 |
| 1982 | 16 |
| 1983 | 17 |
| 1984 | 30 |
| 1985 | 20 |
| 1986 | 17 |
| 1987 | 15 |
| 1988 | 12 |
| 1989 | 11 |
| 1990 | 14 |
| 1991 | 14 |
| 1992 | 19 |
| 1993 | 24 |
| 1994 | 13 |
| 1995 | 14 |
| 1996 | 16 |
| 1997 | 16 |
| 1998 | 16 |
| 1999 | 28 |
| 2000 | 27 |
| 2001 | 32 |
| 2002 | 37 |
| 2003 | 30 |
| 2004 | 35 |
| 2005 | 30 |
| 2006 | 31 |
| 2007 | 34 |
| 2008 | 29 |
| 2009 | 19 |
| 2010 | 29 |
| 2011 | 22 |
| 2012 | 26 |
| 2013 | 21 |
| 2014 | 28 |
| 2015 | 19 |
| 2016 | 18 |
| 2017 | 28 |
| 2018 | 27 |
| 2019 | 16 |
| 2020 | 15 |
| 2021 | 27 |
| 2022 | 23 |
| 2023 | 24 |
| 2024 | 14 |
| 2025 | 18 |
| 2026 | 16 |
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\") = 1991
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.
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") = 1991
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" 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 LAX92LA074Accident · Minor injuriesLimited investigationFinal reportPiper PA32RT-300 · Big Bear City, CAThe failure of the pilot to maintain directional control and improper use of the rudder. Contributing to the accident was the improper installation by the company of a hand control mechanism that required the pilot to operate the airplane controls with one…NTSB MIA91LA221Accident · 2 fatalLimited investigationFinal reportJohn H. Logan Loganair I · Gainesville, FLThe non-instrument rated pilot in command's decision to depart under special visual flight rule clearance in instrument flight rules conditions during darkness with a failed vacuum pump and resulting inoperative flight instruments which resulted in an…NTSB CHI91DTK05Accident · No injuriesFinal reportEagle DW1 · Hurley, SDThe failure of the pilot to maintain a visual lookout.NTSB ATL91LA169Accident · Minor injuriesLimited investigationFinal reportBates, Frank L Skybolt · Yatesville, GAThe pilot's failure to maintain a proper altitude during maneuvering flight.NTSB ANC91LA135Accident · No injuriesLimited investigationFinal reportMaule M-7-235 · Mystic Pass, AKThe pilot lost control of the airplane. Contributing to the accident was unfavorable wind and turbulence.NTSB BFO91LA063Accident · Serious injuriesLimited investigationFinal reportPiper PA-23-250 · New Market, VAThe pilot's inadequate inflight decision that resulted in VFR flight into IMC.NTSB CHI91DER09Accident · No injuriesFinal reportEagle Eagle DW-1 · Windom, MNThe pilot's improper aircraft handling. Related factors are the pilot's inattention and the airplane's deteriorated performance capability.NTSB CHI91DCQ06Accident · No injuriesFinal reportPiper PA-36-300 · Oakley, KSA loss of engine power for an undetermined reason(s).NTSB FTW91DRA03Accident · No injuriesFinal reportBronner Skybolt · Alvin, TXThe pilot's failure to maintain terrain clearance. A factor was the pilot's decision to perform a low pass.NTSB CHI91DER04Accident · No injuriesFinal reportBellanca Eagle DW-1 · Hector, MNThe loss of engine power due to the total failure of a connecting rod. Related factors are the low maneuvering altitude and the unsuitable (muddy) terrain encountered during the forced landing.NTSB NYC91FA145Accident · 1 fatalField investigationFinal reportPiper PA-32RT-300 · Wallingford, CTThe pilot attempting a VFR flight in adverse weather conditions, at an altitude that was insufficient to clear trees along his route of flight. Factors related to the accident were the pilot's lack of instrument rating, and his overconfidence to fly in…NTSB ANC91IA052Incident · No injuriesIncident investigationFinal reportPiper PA-32-301 · Eek, AKThe failure of the center torque link bolt.NTSB NYC91LA065Accident · No injuriesLimited investigationFinal reportPiper PA-32-301 · Celina, OHThe pilot-in-command's improper use of the powerplant controls, magnetos and brakes.NTSB FTW91LA032Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301 · Enid, OKThe mechanical failure of the ignition switch. A factor was the pilot's failure to apply the parking brake or use airplane wheel chocks.