NTSB investigations: Lycoming TI0-540 series
20 cases on aircraft whose registry engine model is Lycoming TI0-540 series, where the defining event was Landing gear collapse. 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
| 2008 | 1 |
|---|---|
| 2009 | 1 |
| 2010 | 1 |
| 2013 | 2 |
| 2014 | 3 |
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 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 ('41533')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '094'))
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 ('41533')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '094'))
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 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.NTSB WPR25LA301Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-24-260 · West Yellowstone, MTOn June 29, 2025, at 1033 mountain daylight time, a Piper PA-24-260, N9366P, was substantially damaged when it was involved in an accident near West Yellowstone, Montana. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB GAA23WA195AccidentClass 5 · ForeignPiper PA-23-250 · The Valley, AnguillaNTSB WPR23LA116Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-24-260 · San Jose, CAA landing gear collapse due to an inadequately maintained landing gear extension and retraction system.NTSB GAA22WA207Accident · No injuriesClass 5 · ForeignPiper PA-23-250 · The Settlement, British Virgin IslandsNTSB WPR22LA249Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32R-301T · Red Bluff, CAThe pilot’s failure to detect the tripped landing gear motor circuit breaker, which prevented the gear from fully locking in the down position, and subsequent collapse during landing.NTSB CEN22LA257Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-32R-300 · Gettysburg, SDAn inadvertent hard landing by the pilot.NTSB ERA19LA279Accident · No injuriesClass 3 · LimitedFinal reportPiper PA23 · Charlotte AmalieThe collapse of the left main landing gear for undetermined reasons.NTSB WPR18LA272Accident · No injuriesClass 3 · LimitedFinal reportSmith AEROSTAR601 · Heber, UTA recent hard landing resulted in a fracture of a joint from a cylinder to a main landing gear.NTSB GAA18WA590Accident · No injuriesForeign investigationAero Commander 500 · Canefield Airoprt, DominicaThe government of Dominica has notified the NTSB of an accident involving a AERO COMMANDER 500 airplane that occurred on July 27, 2018. The NTSB has appointed a U.S. Accredited Representative to assist the government of Dominica's investigation under the…NTSB CEN18LA017Accident · No injuriesLimited investigationFinal reportPiper PA 32RT-300T · Port Mansfield, TXThe pilot’s improper landing flare, which led to a hard landing and the subsequent collapse of the nosewheel landing gear due to the overstress failure of the nosewheel landing gear trunnion casting.NTSB CEN15LA147Accident · No injuriesLimited investigationFinal reportPiper PA 31-350 · Chicago, ILThe collapse of the nose and right main landing gears during landing for reasons that could not be determined because examination of the landing gear system revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.NTSB CEN15LA078Accident · No injuriesLimited investigationFinal reportPiper PA 46 350P · Houston, TXThe nose landing gear collapse as a result of the fracture of the engine mount at the nose gear actuator attachment point in an area that a service bulletin (SB) recommended for inspection. Contributing to the accident was maintenance personnel’s inadequate…NTSB WPR14LA142Accident · No injuriesLimited investigationFinal reportBellanca 17 31 · Salt Lake City, UTThe failure of the right main landing gear extension spring to maintain adequate pressure, which allowed the landing gear to collapse during the landing roll.NTSB WPR14LA105Accident · No injuriesLimited investigationFinal reportPiper PA 23-250 · Camarillo, CAThe inadequate hydraulic pressure due to a damaged O-ring in the hydraulic powerpack, which prevented the right main landing gear (MLG) downlock from locking in the extended positon and allowed the right MLG to collapse during landing.NTSB ERA14IA019Incident · No injuriesIncident investigationFinal reportPiper PA 46 350P · Tallahassee, FLThe failure of the nose landing gear (NLG) actuator attachment bolt due to fatigue for reasons that could not be determined during postincident examination, which resulted in the NLG collapsing during landing.NTSB WPR13LA237Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301T · Chandler, AZThe failure of the alternator and/or battery, which prevented the operation of the landing gear extension system and resulted in the nose landing gear collapsing during the landing roll.NTSB ERA10LA108Accident · No injuriesLimited investigationFinal reportPiper PA-32R-300 · Concord, NCA missing right main landing gear aft trunnion mount attachment nut.NTSB WPR09LA297Accident · No injuriesLimited investigationFinal reportBellanca 17-31ATC · Roosevelt, UTThe retraction of the left main landing gear due to the failure of the extension and retraction actuator arm attach bolt. Contributing to the accident was the failure of maintenance personnel to discover the extensive elongation of the actuator attach fitting…NTSB SEA08LA064Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Placerville, CAThe collapse of the right main landing gear during landing for undetermined reasons.