Final NTSB investigations: Lycoming AEIO-540 series
107 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, newest first
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.\"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 ('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."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 ('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 DFW05FA242Accident · 1 fatalField investigationFinal reportAkro Tech Aviation Inc. Giles G-300 · Yukon, OKThe catastrophic separation of the canopy as result of the failure of the forward canopy hinge while performing aerobatics and the subsequent incapacitation of the pilot.NTSB ATL04LA152Accident · Serious injuriesLimited investigationFinal reportStein Skybolt Skybolt · Jasper, GAThe pilot's attempt to operate the airplane with known deficiencies in the equipment, and the fuel system contamination that resulted in fuel starvation to the engine. A factor was rough and uneven terrain.NTSB SEA04FA127Accident · Serious injuriesField investigationFinal reportExtra Flugzeugrau EA 300/L · Boise, IDThe failure of the pilot to maintain clearance with terrain during descent while conducting an aerobatic maneuver. Low altitude flight was a factor.NTSB NYC04LA140Accident · No injuriesLimited investigationFinal reportAviat Pitts S2B · Hamilton, OHThe pilot's failure to maintain directional control after experiencing a brake system malfunction during landing. Factors related to the accident were the malfunction of a landing gear brake as reported by the pilot, and the crosswind conditions.NTSB MIA04CA055Accident · No injuriesData collectionFinal reportAviat Pitts S2B · Parkland, FLThe pilot's inadequate preflight planning which resulted in an off-airport precautionary landing to preclude fuel exhaustion, which resulted in damage to the airplane during the landing.NTSB FTW04FA054Accident · 2 fatalField investigationFinal reportPiper PA-32R-301 · Beaumont, TXThe flight instructor's failure to maintain clearance with a static line. Contributing factors were the low cloud ceiling weather conditions and night light conditions.NTSB LAX04LA039Accident · Serious injuriesLimited investigationFinal reportZivko Edge 540-T · King City, CAThe after market manufacturer's improper application of a crankshaft , which exceeded the original manufacturer's intended use. A factor in the accident was the oil covering the windscreen, which restricted the pilot's ability to see.NTSB NYC04LA006Accident · 1 fatalLimited investigationFinal reportExtra Flugzeugbau EA-300L · Queen Anne, MDThe pilot's performance of aerobatic maneuvers with positive and negative Gs, which resulted in a G induced loss of control, and uncontrolled impact with the ground.NTSB CHI04LA007Accident · 1 fatalLimited investigationFinal reportAviat Pitts S-2B · Cromwell, MNThe altitude/clearance not maintained by the pilot while performing aerobatic maneuvers. Contributing factors were the planning/decision to perform an aerobatic maneuver at a low altitude.NTSB NYC04LA004Accident · 1 fatalLimited investigationFinal reportPfeifler Edge-540 · Warrenton, VAThe pilot's failure to maintain aircraft control while performing aerobatic maneuvers.NTSB LAX03CA287Accident · Minor injuriesData collectionFinal reportAviat Pitts S-2C · Mountain View, CAthe pilot's failure to maintain an adequate clearance with the runway during a low altitude aerobatic maneuver.NTSB DEN03FA074Accident · 2 fatalField investigationFinal reportChristen Industries Pitts S-2B · Longmont, COthe pilot's improper in-flight planning and decision that resulted in fuel exhaustion and his entering an aerobatic maneuver with insufficient altitude. Factors contributing to the accident were the low airspeed and low altitude, and the fuel exhaustion.NTSB NYC03FA088Accident · 2 fatalField investigationFinal reportAviat Pitts S-2B · Newport, PAThe pilot's improper decision to perform aerobatics at a low altitude, which inhibited his ability to recover from an encountered flat spin. A factor related to the accident was the aft center of gravity, which was beyond the operational limit for the…NTSB LAX03LA081Accident · Serious injuriesLimited investigationFinal reportPitts S-2B · Long Beach, CAThe pilot's excessive pull up, which resulted in a failure to obtain/maintain flying speed and a subsequent stall/mush.NTSB MIA03FA050Accident · 2 fatalField investigationFinal reportExtra Flugzeugbau EA300/L · Golden Gate, FLThe airplane's entry into a near vertical descent for undetermined reasons, which resulted in a collision with terrain during the resultant descent.NTSB ATL02FA076Accident · No injuriesField investigationFinal reportFlugzeugbau EA-300L · Lakeland, FLThe Extra 300L pilot's failure to maintain a visual lookout resulting in a midair collision while landing. Contributing to the accident was the Extra 300L pilot's failure to follow written instructions contained in the NOTAM, and ATC instructions resulting in…NTSB CHI02LA091Accident · Minor injuriesLimited investigationFinal reportAviat Pitts S-2B · Milwaukee, WIThe loss of engine power for undetermined reasons. A factor in the accident was the telephone pole.NTSB LAX02LA074Accident · No injuriesLimited investigationFinal reportAviat Pitts S-2B · Hawthorne, CAFailure of the student to maintain directional control of the airplane on the landing rollout and failure of the CFI to adequately supervise the flight. A contributing factor was the decreased tension of the right main landing gear shock cord/bungee.NTSB LAX02FA003Accident · 1 fatalField investigationFinal reportEdge 540 · San Juan Capist, CAthe pilot's failure to maintain an adequate terrain/object altitude clearance while intentionally performing low level aerobatics, which resulted in a loss of aircraft control.NTSB NYC01FA212Accident · 1 fatalField investigationFinal reportPitts S-2B · Shirley, NYThe pilot under instruction's failure to maintain adequate airspeed, and the flight instructor's inadequate remedial action during a simulated engine-out approach, which resulted in an inadvertent stall, and subsequent ground impact.NTSB FTW01LA102Accident · No injuriesLimited investigationFinal reportCap 232 · Laporte, TXFailure of the brake system during taxi. A contributing factor was the pilot's decision to continue taxiing after discovering the brakes were not functioning normally.NTSB MIA01FA074Accident · Minor injuriesField investigationFinal reportAmerican 8KCAB · Leesburg, FLThe failure of the pilot of N123WA and the failure of both pilots of N301NL to adequately insure visual separation between their aircraft and other aircraft in the landing pattern, resulting in a runway collision. Factors contributing to the accident were the…NTSB MIA01FA041Accident · 2 fatalField investigationFinal reportChristen Industries Pitts S-2B · Weston, FLAn inflight loss of control by both pilots while maneuvering, which resulted in an inverted flat spin, an uncontrolled descent, and an impact with terrain/water. A factor contributing to the accident was the failure of both pilots to ensure that the…NTSB CHI01LA030Accident · No injuriesLimited investigationFinal reportAviat Pitts S-2B · Worth, ILThe pilot's inadequate preflight of the airplane and his failure to verify the fuel supply on board, which resulted in fuel exhaustion. Factors associated with the accident were the low altitude at which the power loss occurred and the lack of suitable…NTSB NYC00LA053Accident · No injuriesLimited investigationFinal reportChristen Industries Pitts S-2B · Shamokin, PAThe pilot's failure to maintain aircraft control.NTSB MIA99LA152Accident · No injuriesLimited investigationFinal reportChristen Industries S-2B · Knoxville, TNa total loss of engine power caused by the failure of the number 6 connecting rod, due to oil starvation for an undetermined reason.NTSB LAX99LA103Accident · No injuriesLimited investigationFinal reportZivko Aeronautics Edge 540 · Livermore, CAThe manufacturer's inadequate quality control procedures, which allowed an improperly manufactured crankshaft to be shipped, resulting in the separation of one counterweight from the crankshaft lug and the subsequent catastrophic internal failure of the…NTSB IAD99LA022Accident · Serious injuriesLimited investigationFinal reportPitts S-2B · Easton, MDThe failure of both the pilot-in-command (CFI) and dual student of the other aircraft (Pitts) to maintain adequate visual lookout.NTSB FTW98LA317Accident · No injuriesLimited investigationFinal reportCessna 152 · Dallas, TXThe inadequate visual lookout by the pilots of both airplanes.NTSB LAX98LA150Accident · No injuriesLimited investigationFinal reportPitts S-2B · Greenfield, CAThe pilot's failure to maintain directional control. A related factor was the proximity of high brush located on both sides of the runway.NTSB ATL98LA022Accident · No injuriesLimited investigationFinal reportChristen Industries S-2B · Fort Lauderdale, FLThe undetermined malfunction of the right brake and the pilot's failure to maintain directional control during the landing rollout. A factor was the quartering tailwind.NTSB FTW97LA332Accident · No injuriesLimited investigationFinal reportPitts S-2B · Mountain View, ARFuel exhaustion due to the pilot's inadequate preflight planning. A factor was the lack of suitable terrain for the forced landing.NTSB LAX96LA232Accident · Minor injuriesLimited investigationFinal reportMoore Goshawk 350 · Livermore, CAan overstress failure of the left rudder cable.NTSB ATL96LA025Accident · 1 fatalLimited investigationFinal reportMoravan Zlin Z50 LA · Springfield, TNthe pilot's failure to maintain control of the aircraft.NTSB FTW95LA384Accident · 1 fatalLimited investigationFinal reportJohnson Rebel 300 · Keenesburg, COInadvertent stall during approach. A factor was the pilot's lack of total experience in make and model.NTSB CHI95LA288Accident · Serious injuriesLimited investigationFinal reportde Havilland DHC-1 · Hammond, WIan overload failure of the right horizontal support tube assembly which the pilot/owner had modified to be adjustable. A factor in the accident was the corn.NTSB MIA95LA129Accident · No injuriesLimited investigationFinal reportPitts S-2B · Naples, FLThe failure of the tail wheel landing gear system for undetermined reasons. This resulted in an on-ground loss of control on landing rollout, ground loop, and collapse of the right main landing gear.NTSB SEA95LA056Accident · No injuriesLimited investigationFinal reportPitts S-2B · Spokane, WAFatigue failure of the crankshaft. Factors were the soft terrain and the pilot/owner's failure to conduct recurring crankshaft inspections recommended by the manufacturer.NTSB SEA95LA032Accident · Minor injuriesLimited investigationFinal reportPitts S-2B · Afton, WYThe pilot's failure to maintain directional control, and his inadequate remedial action. Factors include snow covered terrain at the edge of the runway.NTSB MIA94LA171Accident · No injuriesLimited investigationFinal reportPitts S2B · Fort Lauderdale, FLThe poor welding quality of the manufacturer, resulting in the fatigue failure of the aileron attachment bracket.NTSB MIA94LA154Accident · No injuriesLimited investigationFinal reportPitts S2B · Keystone Height, FLThe pilot-in-command's exceeding of the design limitations of the airplane.NTSB ATL94LA083Accident · No injuriesLimited investigationFinal reportCessna 172K · Spartanburg, SCThe inadequate visual lookout by the pilot of Cessna 172K, N711GT.NTSB NYC94LA070Accident · No injuriesLimited investigationFinal reportAviat Pitts S-2B · Albion, NYthe pilot's loss of directional control during the landing roll, and the subsequent collision with soft terrain and nose over. Factors related to the accident were: the snowbanks on either side of the runway, and the pilot's lack of recent flight experience.NTSB FTW93LA265Accident · No injuriesLimited investigationFinal reportPitts S1-T · Sherman, TXFailure to maintain visual lookout by the pilots in command of both aircraft.NTSB LAX93LA359Accident · No injuriesLimited investigationFinal reportChristen Industries Pitts S-2B · Hawthorne, CAdual student's failure to maintain directional control and improper use of the rudder and the CFI's inadequate supervision of the flight.NTSB BFO93LA045Accident · Serious injuriesLimited investigationFinal reportPitts S-2B · Hillsboro, MDFailure of the pilot to maintain airspeed, while performing aerobatic maneuvers, which resulted in an inadvertent flat spin and an uncontrolled descent into terrain.NTSB ATL93LA042Accident · No injuriesLimited investigationFinal reportPitts S2B · Tuscaloosa, ALThe failure of the pilot to maintain directional control of the aircraft, during the take off roll. A factor was the wind gust.NTSB CHI92LA190Accident · No injuriesLimited investigationFinal reportPitts S2B · Aurora, NEThe pilot-in-command's restricted visual lookout from smoke entering the cockpit. Factors were smoke in the cockpit which resulted in the pilot becoming disoriented.NTSB MIA92LA013Accident · No injuriesLimited investigationFinal reportChristen Industries Pitts S-2B · Sebring, FLFailure of the pilot to maintain directional control, which resulted in an inadvertent ground swerve and collision with tall grass beside the runway. The tall grass was a related factor.NTSB SEA91FA203Accident · 1 fatalField investigationFinal reportChristen Industries Pitts S-2B · Scappoose, ORThe pilot's misjudgment of altitude, while performing an aerobatic maneuver, and his failure to maintain ground clearance.