NTSB investigations: Lycoming AEIO-540 series
115 cases on aircraft whose registry engine model is Lycoming AEIO-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
| 1985 | 2 |
|---|---|
| 1986 | 1 |
| 1989 | 1 |
| 1990 | 3 |
| 1991 | 2 |
| 1992 | 2 |
| 1993 | 3 |
| 1994 | 5 |
| 1995 | 5 |
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 3 |
| 2000 | 2 |
| 2001 | 4 |
| 2002 | 3 |
| 2003 | 9 |
| 2004 | 5 |
| 2005 | 1 |
| 2006 | 9 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 3 |
| 2014 | 5 |
| 2015 | 4 |
| 2016 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 5 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 2 |
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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41568'))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41568'))
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 WPR27LA018Accident · Serious injuriesClass 4 · LimitedInvestigation openChristen Industries Pitts S-2B · Yuma, AZNTSB ERA26LA276Accident · Minor injuriesClass 4 · LimitedFinal reportChristen Industries Pitts S-2 · Porter Center, NYThe pilot’s failure to maintain directional control during the landing roll.NTSB WPR26LA026Accident · No injuriesClass 3 · LimitedPreliminary reportExtra Flugzeugbau EA 300/L · Arlington, WAOn October 14, 2025, at about 1030 Pacific daylight time, an EXTRA FLUGZEUGBAU GMBH 300L, N300EX, was substantially damaged when it was involved in an accident near Arlington, Washington. The flight instructor and private pilot receiving instruction were…NTSB ERA25FA231Accident · 2 fatalClass 3 · FieldPreliminary reportPitts S2 · Broadway, NCOn June 20, 2025, at 0900 eastern daylight time, a Pitts Aerobatics S-2B, N79AV, was destroyed when it was involved in an accident near Broadway, North Carolina. The private pilot and the commercial pilot-rated passenger were fatally injured. The airplane was…NTSB ERA25FA185Accident · 1 fatalClass 3 · FieldFinal reportMX Aircraft Tech PTY MXS · Hampton, VAA counterweight plug that loosened during the accident flight, jammed the elevator, and resulted in loss of control during landing.NTSB ERA24FA391Accident · 1 fatalClass 3 · FieldFinal reportAviat S-1-11B · Chapmansboro, TNThe pilot’s loss of airplane control while performing an aerobatic maneuver, which resulted in the airplane entering an inverted flat spin at an altitude too low for recovery.NTSB WPR24FA156Accident · 1 fatalClass 3 · FieldFinal reportExtra Flugzeugbau EA 300/L · Bandera, WAThe pilot’s decision to continue flight into icing conditions and inclement weather, which likely led to spatial disorientation when he attempted to divert from the planned course to the destination airport.NTSB GAA22WA259Accident · No injuriesClass 5 · ForeignMXR Technologies MXS · Hajdúszoboszló, HungaryNTSB WPR22FA240Accident · 1 fatalClass 3 · FieldFinal reportExtra Flugzeugbau EA 300/L · Boulder City, NVThe failure of the pilot to maintain control of the airplane by exceeding the airplane’s critical angle of attack while maneuvering in a turning climb at a low altitude, which resulted in an aerodynamic stall and spin from which the pilot was unable to…NTSB ERA22LA238Accident · No injuriesClass 4 · LimitedFinal reportMX MXS · Bealeton, VAAn inflight collision with a bird while conducting low level aerobatics.NTSB WPR22LA153Accident · No injuriesClass 4 · LimitedFinal reportStoddard Hamilton Glasair Super II · Oxnard, CAThe pilot’s failure to maintain airplane control while on final approach, which resulted in a collision with a runway approach light.NTSB WPR22LA088Accident · No injuriesClass 3 · LimitedFinal reportExtra Flugzeugbau EA 300/L · Phoenix, AZThe failure of the right brake due to the separation of the brake pad from the brake assembly. Also causal was the improper maintenance of the airplane, which resulted in the use of a brake pad that was inappropriate for the airplane make and model.NTSB ERA21LA107Accident · No injuriesClass 3 · LimitedFinal reportExtra Flugzeugbau EA 300/L · Pell City, ALThe pilot's mismanagement of the fuel supply, which resulted in fuel starvation. Contributing to the accident was the pilot’s failure to follow the manufacturer’s engine restart procedures after a total loss of engine power and his incomplete preflight…NTSB WPR21LA076Accident · No injuriesClass 4 · LimitedFinal reportExtra Flugzeugbau EA 300/L · Santa Monica, CAThe pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop.NTSB CEN20WA408Accident · 2 fatalForeign investigationRaven Aircraft Corppration Raven · Moosburg an der Isar, GermanyNTSB WPR20CA174Accident · No injuriesClass 4 · Data collectionFinal reportExtra EA 300 · Concord, CAThe pilot's loss of directional control during the landing roll, which resulted in a ground loop.NTSB CEN20CA146Accident · Minor injuriesData collectionFinal reportPitts S2 · Fort Worth, TXThe pilot's inadequate preflight inspection of the fuel level, which resulted in a total loss of engine power due to fuel exhaustion.NTSB GAA19CA577Accident · No injuriesData collectionFinal reportPitts S2 · Morrisville, VTThe pilot's failure to maintain directional control during landing, which resulted in a runway excursion and nose down.NTSB CEN19FA270Accident · 2 fatalClass 3 · FieldFinal reportPitts S2 · New Orleans, LAA loss of control for undetermined reasons.NTSB WPR19LA218Accident · No injuriesClass 3 · LimitedFinal reportExtra EA300 · Mesa, AZThe flight instructor’s operation of the airplane outside of the manufacturer’s limitations, which resulted in fuel starvation and a partial loss of engine power. Contributing to the accident was an inoperative electric fuel boost pump.NTSB GAA19CA021Accident · No injuriesData collectionFinal reportAviat S · Hampton, GAThe pilot’s failure to see and avoid power wires during approach.NTSB CEN18LA127Accident · Minor injuriesLimited investigationFinal reportMX MXS · Fulton, TXA total loss of engine power due to the fatigue failure of the crankshaft, which resulted in the pilot’s forced landing to an abandoned airport and the airplane’s subsequent impact with debris on the runway.NTSB CEN16WA160Accident · 1 fatalForeign investigationExtra Flugzeugbau EA 300/L · Cozumel, MexicoOn April 17, 2016, at 1940 UTC, an Extra EA300, N13DK, impacted terrain at Cozumel International Airport (MMCZ) in Cozumel, Mexico. The aircraft was destroyed and the pilot, the sole occupant, was fatally injured. This investigation is under the jurisdiction…NTSB GAA16CA127Accident · No injuriesData collectionFinal reportCessna 150 · Santa Paula, CAThe tailwheel pilot's failure to see and avoid a stationary airplane performing a run-up, which resulted in a ground collision.NTSB WPR15LA255Accident · Serious injuriesLimited investigationFinal reportExtra Flugzeugbau EA 300/L · Jerome, IDThe pilot's failure to maintain clearance from terrain while conducting a low-altitude aerobatic maneuver.NTSB CEN15WA364Accident · Minor injuriesForeign investigationMX MX2 · Châteauneuf-sur-Cher, FranceNTSB CEN15FA282Accident · 1 fatalField investigationFinal reportChristen Industries Pitts S-2B · Cameron, MOThe pilot’s failure to maintain airplane control during a low-level aerobatic flight maneuver.NTSB ERA15LA210Accident · Serious injuriesLimited investigationFinal reportAviat Pitts S-2B · Tullahoma, TNThe pilot’s inadequate visual lookout, which resulted in his airplane landing on top of the other airplane.NTSB ERA15CA037Accident · No injuriesData collectionFinal reportAviat S 2C · Rutland, VTThe pilot's failure to maintain directional control during landing rollout in gusty crosswind conditions, which resulted in a ground loop and subsequent substantial damage to the airplane.NTSB ERA14CA379Accident · No injuriesData collectionFinal reportAviat Pitts S2B · Lakeville, NYThe pilot's decision to favor the right side of the relatively narrow turf runway while landing, resulting in inadvertent contact with tall grass and a berm.NTSB WPR14LA329Accident · No injuriesLimited investigationFinal reportChristen Industries Pitts S 2B · Oceanside, CAThe total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s inadequate fuel planning.NTSB CEN14CA533Accident · No injuriesData collectionFinal reportAviat Pitts S 2B · Grants, NMThe pilot's failure to maintain control of the airplane during landing in gusty wind conditions.NTSB WPR14LA114Accident · No injuriesLimited investigationFinal reportPitts S2C · Roseburg, ORThe pilot’s loss of orientation while scanning for airport traffic during the turn from the base to final legs of the traffic pattern, which resulted in his failure to maintain clearance from a tree.NTSB WPR14LA065Accident · No injuriesLimited investigationFinal reportAviat S 2C · Chandler, AZThe pilot’s failure to maintain airplane control during landing, which resulted in impact with a runway identifier sign, and the flight instructor’s delayed remedial action to take the controls and initiate a go-around.NTSB WPR14LA025Accident · No injuriesLimited investigationFinal reportAviat S2 · Livermore, CAFailure of the pilots of the Pitts airplane to maneuver the airplane as necessary to observe the taxi route and avoid the Cessna airplane ahead. Contributing to the accident was the local controller's failure to provide the required warning of traffic ahead…NTSB CEN13LA467Accident · No injuriesLimited investigationFinal reportChristen Industries Pitts S-2B · Dalton, OHA total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation.NTSB WPR12LA407Accident · 1 fatalLimited investigationFinal reportMoore Edward R MXS · Borrego Springs, CAThe pilot’s inability to maintain control of the airplane following the loss of aileron and elevator control due to the forward flight control torque tube assembly’s detachment from the forward bearing. Contributing to the accident was the inadequate…NTSB WPR12FA155Accident · 2 fatalField investigationFinal reportExtra Flugzeugbau EA-300 · Salinas, CAA loose portable XM-GPS antenna that migrated to the tail section of the airplane and jammed the elevator bell crank. Contributing to the accident was the pilot’s failure to account for the cockpit portable GPS antenna during preflight or postflight…NTSB WPR11LA458Accident · Serious injuriesLimited investigationFinal reportAviat Pitts S-2B · Redlands, CAThe pilot’s failure to maintain airspeed while maneuvering, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s impairment from alcohol.NTSB WPR10LA426Accident · No injuriesLimited investigationFinal reportGrob-Werke G 120A · Buckeye, AZThe student pilot's improper flare, which resulted in a hard landing.NTSB CEN10RA579Accident · 1 fatalForeign investigationZivko Aeronautics Edge 540 · Toledo, SpainimportNTSB CEN10LA295Accident · Minor injuriesLimited investigationFinal reportPitts Aerobatics S-2B · Amarillo, TXThe fracture of the fuel pump housing for undetermined reasons.NTSB ERA09LA388Accident · Serious injuriesLimited investigationFinal reportChristen Industries Pitts S-2B · Oakland, MSA total loss of engine power while maneuvering (after performing aerobatics) for undetermined reasons.NTSB CEN09CA287Accident · Serious injuriesData collectionFinal reportPitts Aerobatics S-2B · Muskogee, OKInadequate supervision by the certified flight instructor, resulting in a delayed stall recovery attempt.NTSB WPR09LA203Accident · 1 fatalLimited investigationFinal reportExtra EA-300 · Santa Barbara, CAThe pilot's failure to maintain clearance with terrain for undetermined reasons while performing aerobatics.NTSB ERA09LA188Accident · 2 fatalLimited investigationFinal reportMXR Technologies MX2 · Dade City, FLAn in-flight loss of aircraft control for an undetermined reason.NTSB DEN08FA100Accident · 1 fatalField investigationFinal reportExtra Flugzeugbau EA 300/L · Gothenburg, NEThe pilot's failure to maintain aircraft control after encountering instrument meteorological conditions. Contributing to the accident were the pilot's recent usage of Marihuana, his impaired judgement and decision making, and the low visibility weather…NTSB LAX08FA134Accident · 2 fatalField investigationFinal reportExtra Flugzeugproduktions-GMBH EA-300/L · Queen Creek, AZThe loss of aircraft control due to an undetermined rudder malfunction.NTSB NYC07CA198Accident · No injuriesData collectionFinal reportChristen Industries Pitts S-2B · Springfield, TNThe pilot's inadequate compensation for wind conditions during landing.NTSB SEA07CA033Accident · Minor injuriesData collectionFinal reportExtra Flugzeugbau EA 300/L · Boulder City, NVThe pilot-in-command's failure to maintain directional control of the airplane during takeoff.