NTSB investigations: Lycoming 0-540 series, CA
353 cases on aircraft whose registry engine model is Lycoming 0-540 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 | 18 |
|---|---|
| 1965 | 13 |
| 1966 | 25 |
| 1967 | 12 |
| 1968 | 14 |
| 1969 | 7 |
| 1970 | 5 |
| 1971 | 14 |
| 1972 | 7 |
| 1973 | 9 |
| 1974 | 8 |
| 1975 | 10 |
| 1976 | 10 |
| 1977 | 9 |
| 1978 | 10 |
| 1979 | 10 |
| 1980 | 7 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 4 |
| 1984 | 5 |
| 1985 | 7 |
| 1986 | 2 |
| 1987 | 4 |
| 1988 | 7 |
| 1989 | 7 |
| 1990 | 5 |
| 1991 | 3 |
| 1992 | 5 |
| 1993 | 4 |
| 1994 | 5 |
| 1995 | 1 |
| 1996 | 10 |
| 1997 | 3 |
| 1998 | 5 |
| 1999 | 2 |
| 2000 | 2 |
| 2001 | 6 |
| 2002 | 4 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 8 |
| 2006 | 3 |
| 2007 | 3 |
| 2008 | 3 |
| 2009 | 10 |
| 2010 | 5 |
| 2011 | 3 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 5 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 4 |
| 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\" = 'CA' 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 ('41532'))
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" = 'CA' 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 ('41532'))
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 WPR27LA003Accident · No injuriesClass 4 · LimitedInvestigation openMaule M-5-235C · Agua Dulce, CANTSB WPR26FA069Accident · 1 fatalClass 3 · FieldPreliminary reportPiper PA-32-260 · Rio Linda, CAOn December 24, 2025, at approximately 1230 Pacific standard time, a Piper PA-32-260, N2785Q, was substantially damaged when it was involved in an accident near Rio Linda, California. The pilot sustained serious injuries, and the pilot-rated passenger was…NTSB WPR25LA266Accident · No injuriesClass 3 · LimitedPreliminary reportCessna TR182 · San Diego, CAOn August 12, 2025, about 1330 Pacific daylight time, Cessna TR182 airplane, N619MW, was substantially damaged when it was involved in an accident near San Diego, California. The pilot and passenger were not injured. The airplane was operated as a Title 14…NTSB WPR25LA237Accident · No injuriesClass 4 · LimitedFinal reportCessna R182 · Thermal, CAThe pilot's failure to extend the landing gear during landing. Contributing to the accident was the pilot’s failure to use a pre-landing checklist.NTSB WPR25LA092Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-235 · Shafter, CAA total loss of engine power due to carburetor ice. Contributing was the student pilot and flight instructors’ failure to utilize carburetor heat.NTSB WPR24FA295Accident · Serious injuriesClass 3 · FieldPreliminary reportPiper PA-24-250 · Hawthorne, CAOn September 6, 2024, at 0036 Pacific daylight time, a Piper PA-24-250, N588CP, was destroyed when it was involved in an accident near Hawthorne, California. The pilot and pilot rated passenger sustained serious injuries. The airplane was operated as a Title…NTSB WPR24LA160Accident · Minor injuriesClass 3 · LimitedFinal reportSteen Skybolt · Santa Maria, CAA total loss of engine power during approach for reasons that could not be determined.NTSB WPR23LA239Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-24-250 · Alturas, CAA loss of engine power due to the failure of the right magneto distributor gear and the pilot’s decision to conduct a test flight with known mechanical issues.NTSB WPR22LA226Accident · No injuriesClass 3 · LimitedFinal reportCessna TR182 · Santa Barbara, CAA failure of the right main landing gear actuator pressure line O-ring, which resulted in a gear-up landing on the runway.NTSB WPR22LA219Accident · Minor injuriesClass 3 · LimitedFinal reportCessna TR182 · Davis, CAAn in-flight fire during the initial takeoff climb for reasons that could not be determined based on the available evidence.NTSB WPR21LA245Accident · Serious injuriesClass 4 · LimitedFinal reportPiper PA-28-235 · Big Bear City, CAThe pilot’s inadequate flare and subsequent loss of airplane control during an aborted landing in gusting wind, which resulted in impact with trees.NTSB WPR21FA114Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Los Angeles, CAThe total loss of engine power due to the failure of the No. 6 exhaust valve for reasons that could not be determined based on available evidence.NTSB WPR19LA267Accident · No injuriesClass 3 · LimitedFinal reportPiper PA28 · Modesto, CAA total loss of engine power for reasons that could not be determined based on the available information.NTSB WPR19LA201Accident · No injuriesClass 3 · LimitedFinal reportCessna R182 · King City, CAA landing gear collapse following an undetermined loss of electrical power, which prevented the landing gear from fully extending.NTSB GAA19CA052Accident · No injuriesData collectionFinal reportPiper PA28 · Merced, CAThe pilot's improper glidepath during a landing at night, which resulted in a collision with approach lights.NTSB WPR18LA268Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA24 · Upland, CALoss of engine power due to fuel contamination.NTSB GAA17CA395Accident · No injuriesData collectionFinal reportCessna R182 · San Jose, CAThe other pilot’s failure to maintain separation from another airplane in the run-up area while taxiing.NTSB WPR16LA167Accident · Minor injuriesClass 3 · LimitedFinal reportSiai-Marchetti SF260 · Fullerton, CAThe failure of the pilot to set the flaps to the proper takeoff setting before takeoff, resulting in an aerodynamic stall during takeoff and loss of control.NTSB WPR15FA250Accident · 1 fatalField investigationFinal reportPiper PA 25 · Llano, CAThe pilot's loss of airplane control during the landing approach due to an incapacitating medical event.NTSB WPR15FA045Accident · 1 fatalField investigationFinal reportPiper PA 24-250 · Garberville, CAA loss of engine power for reasons that could not be determined due to extensive damage sustained during the collision and postaccident water immersion.NTSB WPR14CA397Accident · No injuriesData collectionFinal reportPiper PA 24-250 · Rancho Murieta, CAThe student pilot's failure to maintain adequate airspeed during takeoff and the certified flight instructors delayed remedial action, which resulted in the stall.NTSB WPR14LA367Accident · Serious injuriesLimited investigationFinal reportPiper PA 25-235 · Warner Springs, CAThe glider pilot's failure to maintain directional control during the initial climb while being towed, which led to the tow plane's unstable flight and its subsequent aerodynamic stall. Contributing to the accident was the tow pilot's delayed release of the…NTSB WPR14CA295Accident · No injuriesData collectionFinal reportCessna R182 · El Monte, CAThe failure of the right main landing gear pivot assembly. Contributing to the accident was the owner's failure to perform an inspection of the assembly in accordance with the manufacturer's service bulletin.NTSB WPR14LA099Accident · No injuriesLimited investigationFinal reportPiper PA 24-250 · San Jose, CAThe pilot’s failure to sump the fuel tanks, which resulted in water contamination, a partial loss of engine power during takeoff, and collision with a taxiing airplane during the subsequent forced landing.NTSB WPR13CA367Accident · No injuriesData collectionFinal reportPiper PA-24-250 · Hesperia, CAThe pilot’s failure to maintain sufficient airspeed on final approach to landing which resulted in an inadvertent stall.NTSB WPR12CA435Accident · No injuriesData collectionFinal reportPiper PA24 · Madera, CAThe student's and flight instructor’s failure to ensure that the landing gear was extended prior to landing.NTSB WPR12FA339Accident · 1 fatalField investigationFinal reportPiper PA-24-250 · Truckee, CAThe pilot’s failure to maintain control of the airplane during initial climb. Contributing to the accident was the pilot’s impairment by prescription pain medication.NTSB WPR11LA374Accident · Minor injuriesLimited investigationFinal reportSIAI Marchetti F.260 · Coalinga, CAA partial loss of engine power immediately after takeoff for undetermined reasons.NTSB WPR11LA311Accident · Minor injuriesLimited investigationFinal reportCessna R182 · Hesperia, CAThe separation of the end baffle cone inside the muffler, which blocked airflow through the engine after takeoff and resulted in a loss of engine power and an off-airport landing into obstacles.NTSB WPR11LA102Accident · No injuriesLimited investigationFinal reportPiper PA-28-235 · San Luis Obispo, CAThe loss of engine power due to the fatigue fracture of one attachment bolt for the left idler gear shaft, which resulted from an insufficient preload on both attachment bolts.NTSB WPR10CA451Accident · No injuriesData collectionFinal reportPiper PA-28-235 · Paradise Lakes Estates, CAThe pilot's failure to maintain clearance from a fence during taxi.NTSB WPR10CA351Accident · No injuriesData collectionFinal reportPiper PA-28-236 · Fullerton, CAThe pilot’s improper flare and inadequate bounced landing recovery, which resulted in a hard landing and porpoise down the runway.NTSB WPR10CA348Accident · No injuriesData collectionFinal reportPiper PA-28-236 · Moreno Valley, CAA total loss of engine power due to fuel exhaustion.NTSB WPR10FA234Accident · 2 fatalField investigationFinal reportPiper PA-28-235 · Livermore, CAThe pilot's continued visual flight into instrument meteorological conditions, which resulted in a collision with obstacles and terrain.NTSB WPR10CA192Accident · No injuriesData collectionFinal reportRobinson R44 · Temecula, CAThe pilot's failure to maintain control of the helicopter during takeoff.NTSB WPR10FA068Accident · 2 fatalField investigationFinal reportSchleicher ASW-27 · Middletown, CAThe failure of both pilots to see and avoid the other airplane. Contributing to the accident was the pilot's failure to yield right of way to the glider.NTSB WPR10CA067Accident · Minor injuriesData collectionFinal reportPiper PA-25-260 · Llano, CAThe pilot's inadequate compensation for the gusting crosswind conditions and failure to maintain lateral and directional control.NTSB WPR10CA193Accident · No injuriesData collectionFinal reportRobinson R44 · San Juan Batista, CAThe pilot's failure to maintain adequate clearance from wires while maneuvering and his subsequent improper use of the collective control, which resulted in the main rotor contacting the tail boom.NTSB WPR09LA436Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 · Torrance, CAA main rotor overspeed due to the pilot’s failure to maintain rotor RPM within allowable limits during a practice autorotation.NTSB WPR09LA204Accident · Minor injuriesLimited investigationFinal reportMaule M-5-235C · Los Angeles, CAThe pilot's inadequate compensation for the crosswinds and failure to maintain directional control during the landing roll.NTSB WPR09FA192Accident · 2 fatalField investigationFinal reportPiper PA-24-250 · San Diego, CAThe pilot's failure to maintain control during an en route cruise descent through multiple cloud layers, resulting in an in-flight breakup.NTSB WPR09LA169Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-235 · San Carlos, CAA total loss of engine power during the initial climb for undetermined reasons.NTSB WPR09CA157Accident · No injuriesData collectionFinal reportPiper PA-24-250 · San Luis Obispo, CAThe pilot's inadequate compensation for the crosswinds during touchdown.NTSB WPR09FA150Accident · 2 fatalField investigationFinal reportPiper PA28-236 · Pomona, CAThe pilot's spatial disorientation while flying in instrument meteorological conditions that resulted in a loss of control of the airplane. Contributing to the accident was the pilot's lack of recent instrument flying experience.NTSB WPR09LA139Accident · No injuriesLimited investigationFinal reportMaule M-5 · Calexico, CAA loss of engine power for undetermined reasons.NTSB LAX08LA272Accident · 1 fatalLimited investigationFinal reportSocata Rallye 235E · San Martin, CAThe pilot's incapacitation due to severe unrecognized coronary artery disease that resulted in a loss of aircraft control.NTSB LAX08LA235Accident · No injuriesLimited investigationFinal reportExtra Flugzeugproduktions-und EA 300/L · San Jose, CAThe pilot of the other airplane's inadequate visual lookout and failure to maintain clearance from another airplane.NTSB SEA08CA103Accident · Minor injuriesData collectionFinal reportPiper PA-28-236 · Alturas, CAThe pilot's inadequate compensation for the gusty crosswind conditions. The wind gusts were a contributing factor.NTSB LAX07LA234Accident · No injuriesLimited investigationFinal reportPiper PA-24-260 · Ramona, CAA total loss of engine power due to a short circuit between both magneto ground leads. A factor in the accident was the inadequate annual/100-hour maintenance inspection regarding the wires.NTSB LAX07CA178Accident · No injuriesData collectionFinal reportPiper PA-24-250 · Mammoth Lakes, CAthe pilot's failure to ensure that the runway was clear of other aircraft before takeoff.