Final NTSB investigations: Lycoming TI0-540 series

2,178 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

19642026
Final NTSB investigations: Lycoming TI0-540 series per year, 1964–2026: 2,178 cases
19649
196527
196632
196749
196848
196947
197048
197163
197245
197351
197462
197546
197652
197758
197868
197965
198057
198155
198247
198340
198446
198543
198643
198735
198830
198932
199013
199129
199227
199324
199422
199527
199628
199723
199819
199925
200035
200141
200245
200336
200441
200541
200648
200731
200830
200928
201031
201123
201230
201326
201425
201529
201621
201721
201819
201920
202028
202115
202222
202327
202414
202511
20265

Latest 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.\"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.

NTSB ERA26LA336Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-300 · West Kingston, RIThe pilot’s failure to bring the airplane to a stop on the available runway, which resulted in a runway excursion.Sep 9, 2026 · N4056W · Substantial damageNTSB CEN26LA300Accident · Minor injuriesClass 4 · LimitedFinal reportCessna T206H · Marble, COThe pilot's failure to maintain directional control during the final approach in variable and gusting wind conditions. Contributing to the accident were localized wind effects associated with mountainous terrain and with nearby convective activity.Aug 21, 2026 · N464PM · Substantial damageNTSB CEN26LA170Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA 31P 350 · Ardmore, OKThe pilot’s failure to maintain control of the airplane while landing on a wet runway with a tailwind.Apr 17, 2026 · N9262Y · Substantial damageNTSB CEN26LA159Accident · No injuriesClass 4 · LimitedFinal reportPiper PA46 · Burke, TXThe airplane’s encounter with unexpected low-level wind shear during final approach, which resulted in a hard impact with the runway.Apr 5, 2026 · N95AG · Substantial damageNTSB ERA26LA150Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Athens, GAThe pilot’s failure to extend the landing gear before landing.Mar 14, 2026 · N9024P · Substantial damageNTSB 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.Nov 23, 2025 · N914CC · Substantial damageNTSB ANC25LA117Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31 · Kotlik, AKThe pilot’s failure to extend the landing gear before landing.Oct 1, 2025 · N16SC · Substantial damageNTSB 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.Aug 20, 2025 · N990DM · Substantial damageNTSB CEN25LA228Accident · Minor injuriesClass 4 · LimitedFinal reportMooney M20M · Ben Bolt, TXThe pilot’s failure to maintain directional control while landing with a crosswind.Jun 30, 2025 · N5287S · Substantial damageNTSB 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.Jun 24, 2025 · N8817P · Substantial damageNTSB 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.Jun 22, 2025 · N31998 · Substantial damageNTSB 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…May 10, 2025 · N30689 · DestroyedNTSB 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.Mar 27, 2025 · N27DV · Substantial damageNTSB 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.Mar 8, 2025 · N32371 · Substantial damageNTSB 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.Jan 10, 2025 · N59826 · Substantial damageNTSB 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.Jan 2, 2025 · N4151R · Substantial damageNTSB WPR25LA039Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA32-300 · Pomona, CAA total loss of engine power during final approach for reasons that could not be determined.Nov 17, 2024 · N617ET · Substantial damageNTSB WPR25LA030Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-32-300 · Prescott Valley, AZSeparation of the No. 3 engine cylinder due to a loss of torque on the cylinder base nuts, which resulted in a loss of engine power and in-flight fire. Contributing to the accident was maintenance personnel’s failure to ensure the engine case and cylinder…Oct 31, 2024 · N154DC · Substantial damageNTSB WPR24LA303Accident · No injuriesClass 4 · LimitedFinal reportCessna T206H · Big Bend-Gold Bar, WAThe pilot’s improper flare, which resulted in a hard landing.Aug 30, 2024 · N379ME · Substantial damageNTSB WPR24LA283Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-300 · Fallbrook, CAThe pilot’s failure to maintain clearance from an obstacle during taxi operations.Aug 9, 2024 · N56631 · Substantial damageNTSB ANC24LA074Accident · No injuriesClass 4 · LimitedFinal reportPiper PA31 · Fairbanks, AKThe pilot's continuation of an unstabilized approach and his failure to monitor the aircraft's altitude and airspeed during the approach, resulting in a loss of control.Aug 5, 2024 · N9FW · Substantial damageNTSB ERA24LA302Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-32RT-300T · Myerstown, PAThe failure of maintenance personnel to properly secure a B-nut on the No. 5 cylinder fuel injector line, resulting in a fuel leak and engine fire.Jul 4, 2024 · N184VA · Substantial damageNTSB ERA24LA233Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32RT · Palmetto, FLThe pilot’s improper decision to re-attempt a takeoff with little runway remaining, after rejecting a takeoff in gusting wind conditions, which resulted in a runway overrun at a higher speed and collision with terrain.May 30, 2024 · N313RB · Substantial damageNTSB ERA24LA211Accident · No injuriesClass 3 · LimitedFinal reportPiper PA32 · Apopka, FLA partial loss of engine power due to sticking exhaust valves. Contributing to the accident was maintenance personnel’s failure to use available engine data while troubleshooting a known engine issue and maintenance personnel’s failure to comply with…May 8, 2024 · N908DK · Substantial damageNTSB WPR24LA135Accident · Minor injuriesClass 3 · LimitedFinal reportBellanca 17-31ATC · El Cajon, CAMaintenance personnel’s improper installation of an engine-driven vacuum pump, which resulted in oil starvation to the engine and a subsequent total loss of engine power. Contributing to the accident was the A&P IA’s lack of supervision.Apr 29, 2024 · N8800V · Substantial damageNTSB ANC24LA030Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-300 · Willcox, AZThe pilot’s failure to maintain directional control of the airplane during takeoff in gusting wind conditions, which resulted in collision with an object.Apr 12, 2024 · N4011R · Substantial damageNTSB ERA24FA120Accident · 3 fatalClass 3 · FieldFinal reportPiper PA32 · Jackson, OHThe non-instrument-rated pilot’s decision to depart under visual flight rules into instrument meteorological conditions, which resulted in an inflight collision with terrain while maneuvering.Feb 24, 2024 · N8963N · DestroyedNTSB WPR24LA088Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32R-301T · Spanish Fork, UTThe pilot's failure to ensure proper placement of the fuel selector, which resulted in a total loss of engine power due to fuel starvation.Feb 10, 2024 · N989SR · Substantial damageNTSB ERA24LA111Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-301T · Palm Beach Gardens, FLThe pilot’s failure to maintain directional control of the airplane during the landing roll in a gusting crosswind.Feb 7, 2024 · N484AP · Substantial damageNTSB ERA24LA081Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32 · Gordonville, PAThe pilot’s improper fuel management resulting in fuel starvation, a total loss of engine power, and subsequent off-airport forced landing.Jan 1, 2024 · N722RM · Substantial damageNTSB CEN24LA068Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-23-250 · Forney, TXThe pilot's inadequate fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion.Dec 18, 2023 · N66RC · Substantial damageNTSB CEN24LA060Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-24-260 · Anthony, KSA failure of the airplane’s alternator, which resulted in a loss of electrical power, and the pilot’s failure to use the emergency gear extension procedure during the initial landing approach, which led to a gear-up landing.Dec 12, 2023 · N8729P · Substantial damageNTSB ERA24FA050Accident · 1 fatalClass 3 · FieldFinal reportPiper PA32R · Attalla, ALThe undetected wear of both pawl retaining rivets of the left magneto impulse coupling and fatigue failure of one pawl retaining rivet, which led to cascading fractures of the second pawl retaining rivet, left gear retainer assembly, and gear teeth of…Nov 27, 2023 · N4187Q · DestroyedNTSB CEN24LA039Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA32 · Ozark, MOA reported total loss of engine power for undetermined reasons.Nov 17, 2023 · N16253 · Substantial damageNTSB ERA24LA034Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32R · Florala, ALThe pilot’s failure to extend the landing gear before landing. Contributing to the accident was the flight instructor’s inadequate supervision of the flight.Nov 8, 2023 · N100VF · Substantial damageNTSB ERA24FA026Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-32-300 · Marion, OHA descent and impact with terrain for undetermined reasons.Oct 31, 2023 · N44601 · DestroyedNTSB CEN24FA028Accident · 1 fatalClass 3 · FieldFinal reportPiper PA46 · McCook, NEThe pilot exceeded the airplane’s critical angle of attack during the initial climb, resulting in an aerodynamic stall from which he could not recover. Contributing to the accident was the pilot’s decision to take off with the airplane well above its maximum…Oct 30, 2023 · N510KC · Substantial damageNTSB WPR24FA024Accident · 1 fatalClass 3 · FieldFinal reportCessna T206H · Orangeville, UTThe pilot's controlled flight into mountainous terrain for reasons that could not be determined.Oct 27, 2023 · N915DV · Substantial damageNTSB CEN24LA020Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA 46-350P · Pierre, SDThe total loss of engine power due to fuel starvation as a result of the pilot’s improper configuration of the automatic fuel transfer system. Contributing to the accident was the pilot’s failure to adequately monitor the header tank’s fuel quantity.Oct 23, 2023 · N92884 · Substantial damageNTSB CEN23LA415Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-300 · Moberly, MOThe flight instructor’s inadequate fuel management that resulted in fuel starvation and a total loss of engine power during an approach for landing.Sep 11, 2023 · N4219T · Substantial damageNTSB ERA23LA362Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA32 · Cincinnati, OHA loss of engine power for reasons that could not be determined.Sep 2, 2023 · N6868D · Substantial damageNTSB CEN23LA370Accident · No injuriesClass 3 · LimitedFinal reportPiper PA31 · Durant, OKThe loosening of a connecting rod cap nut for reasons that could not be determined, which resulted in a mechanical failure of the engine and an in-flight fire.Aug 21, 2023 · N3589X · Substantial damageNTSB ERA23LA354Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-32-300 · Fishers Island, NYThe loss of engine power for reasons that could not be determined. Contributing was the pilot’s misjudgment of airspeed and altitude during the forced landing.Aug 18, 2023 · N405WB · Substantial damageNTSB ERA23LA337Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA32 · Haines City, FLA total loss of engine power due to fuel starvation for reasons that could not be determined.Aug 12, 2023 · N898CP · Substantial damageNTSB WPR23LA317Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-24-260 · Fullerton, CAThe separation of the stabilator actuator from the stabilator tab, which resulted in pitch control surface flutter and structural damage.Aug 8, 2023 · N503JA · Substantial damageNTSB ERA23LA301Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31-310 · Lumberton, NJThe pilot's failure to extend the landing gear before landing.Jul 14, 2023 · N400S · Substantial damageNTSB ERA23FA280Accident · 5 fatalClass 3 · FieldFinal reportPiper PA-32R-300 · North Myrtle Beach, SCThe pilot’s loss of control during initial climb, which resulted in an aerodynamic stall and impact with terrain. Contributing to the accident was the pilot’s operation of the airplane above its maximum gross weight and near its aft center of gravity limit,…Jul 2, 2023 · N5524F · DestroyedNTSB CEN23LA246Accident · No injuriesClass 3 · LimitedFinal reportPiper PA46 · College Station, TXThe mechanic’s failure to properly secure the oil suction screen plug during recent maintenance, which resulted in an oil leak and subsequent loss of engine power due to oil starvation.Jun 18, 2023 · N463HP · Substantial damageNTSB WPR23FA208Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-31-325 · Tupelo, MSThe pilot's exceedance of the airplane's critical angle of attack while maneuvering after takeoff for reasons that could not be determined, which resulted in an aerodynamic stall and subsequent loss of control.Jun 3, 2023 · N4077W · DestroyedNTSB ANC23LA036Accident · No injuriesClass 4 · LimitedFinal reportPiper PA31 · Point Thomson, AKThe pilot’s inadvertent descent below the published minimum descent altitude, while operating in flat light conditions, which resulted in controlled flight into terrain.May 17, 2023 · N34WM · Substantial damage