Lycoming T53-L-13
NTSB investigations · 29
Matched to the registry by N-number and event date, 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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
WHERE a.engine_model_code IN ('41551')
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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey
WHERE a.engine_model_code IN ('41551')
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 CEN23FA340Accident · 1 fatalClass 3 · FieldFinal reportRichards Heavylift Helo UH-1H · Oakdale, ILAn in-flight loss of control for undetermined reasons.NTSB WPR22FA098Accident · 1 fatalClass 3 · FieldFinal reportBell UH-1H · Coalinga, CAThe pilot’s loss of situational awareness for reasons that could not be determined given the available evidence, which led to controlled flight into terrain. Contributing to the accident was the pilot’s decision to operate the helicopter while ill and…NTSB CEN21LA212Accident · No injuriesClass 4 · LimitedFinal reportRichards Heavylift Helo UH-1H · Norris City, ILThe pilot’s improper positioning of the helicopter on the landing pad, and his failure to monitor and control the helicopter as fuel and chemical product were loaded, which led to the helicopter tipping and sliding off the landing pad, and subsequently…NTSB GAA21WA103Accident · No injuriesClass 5 · ForeignPrecision Helicopters UH-1H · Rayón, MexicoNTSB GAA19CA344Accident · No injuriesData collectionFinal reportBell UH 1H · Bethel, AKThe pilot's improper fuel planning, which resulted in fuel exhaustion and a total loss of engine power, and his improper landing flare during a forced autorotation, which resulted in a hard landing. Contributing to the accident were the inoperative fuel…NTSB WPR18LA206Accident · Minor injuriesClass 3 · LimitedFinal reportBell UH 1H · Oakdale, CAThe pilot's loss of control during a precautionary landing following an abnormal noise in-flight, the source of which could not be determined.NTSB WPR18LA147Accident · Serious injuriesClass 3 · LimitedFinal reportBell UH 1H · Olympia, WAA loss of tail rotor thrust due to the improper installation of the tail rotor assembly by maintenance personnel resulted in the pilot’s inability to maintain control of the helicopter as he began transition into forward flight from a hover, which resulted in…NTSB WPR18LA004Accident · No injuriesClass 3 · LimitedFinal reportWestern International Avia UH 1H · Arbuckle, CAA collective control malfunction for reasons that could not be determined.NTSB WPR15LA178Accident · No injuriesLimited investigationFinal reportGarlick Helicopters UH 1H · Cove, ORThe failure of the engine-to-transmission drive shaft coupling assembly due to a fatigue fracture of one of its attachment bolts, which resulted in a loss of power to the main rotor.NTSB WPR15LA109Accident · No injuriesLimited investigationFinal reportBell/Garlick UH 1H · Shelton, WAThe fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly.NTSB WPR13FA417Accident · 2 fatalField investigationFinal reportBell UH-1V · Cordes Lakes, AZThe pilot's improper maintenance on the helicopter’s main rotor blade pitch control system, which resulted in an in-flight loss of main rotor blade pitch control, mast bumping, and mast failure.NTSB CEN13FA415Accident · 1 fatalField investigationFinal reportBell UH-1H · Dove Creek, COPilot-induced oscillations caused by the loss of hydraulic assist of the flight controls due to an excessive loss of hydraulic fluid during a critical phase of flight, which resulted in ground impact. Contributing to the accident was an inadequate analysis of…NTSB WPR13FA006Accident · Minor injuriesField investigationFinal reportGarlick Helicopters UH-1H · Shady Cove, ORThe separation of the tail rotor gearbox and tail rotor assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs.NTSB WPR12LA039Accident · Serious injuriesLimited investigationFinal reportWilliams Helicopter UH-1H · Grand Canyon, AZThe loss of main rotor power due to a main rotor transmission failure from a lack of lubrication.NTSB SEA06WA085Accident · No injuriesForeign investigationGarlick UH-1H · Sarawak, MalaysiaNTSB DFW05WA254Accident · 1 fatalForeign investigationBell UH-1H · Pisa Flores, MexicoNTSB LAX03LA160Accident · 1 fatalLimited investigationFinal reportBell UH-1H · Kahoolawe, HIThe pilot's failure to remove the external load cable before the repositioning flight, which resulted in the cable striking the tail rotor in cruise flight.NTSB SEA02FA108Accident · 1 fatalField investigationFinal reportGarlick UH-1H · Clark Fork, IDA failure of unknown origin in the tail rotor drive assembly. Factors include mountainous terrain unsuitable for an emergency landing.NTSB SEA01LA121Accident · Minor injuriesLimited investigationFinal reportKaman HH-43B · Mullan, IDThe development of multiple fatigue cracks which ultimately resulted in the fracture of the 1st stage gas producer turbine rotor sealing disc. Factors contributing to the accident were mountainous/hilly and unsuitable terrain conditions.NTSB DEN01LA077Accident · No injuriesLimited investigationFinal reportBell UH-1H · Zuni, NMa hard landing due to the pilot's failure to maintain aircraft control during autorotation/flare. A factor was the total loss of engine power due to mechanical failure.NTSB DEN99LA160Accident · Minor injuriesLimited investigationFinal reportBell UH-1H · Silverton, COThe total loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for a forced landing.NTSB SEA97LA025Accident · 1 fatalLimited investigationFinal reportGarlick TH-1L · Leavenworth, WAFatigue failure of the vertical stabilizer spar cap and subsequent loss of the rotorcraft's vertical stabilizer. Factors include inadequate inspection or trouble-shooting of the aircraft tail cone and vertical stabilizer at and after the time sheet-metal…NTSB SEA96FA076Accident · No injuriesField investigationFinal reportBell UH-1H · Rainier, WAfailure of the forward power shaft (number 21) bearing. A factor relating to the accident was: the lack of suitable, unobstructed terrain for an emergency landing.NTSB LAX95LA030Accident · Minor injuriesLimited investigationFinal reportBell UH-1E · Willits, CAthat the pilot misjudged the distance between the helicopter and the trees.NTSB LAX94LA132Accident · Minor injuriesLimited investigationFinal reportBell TH-1L · Etna, CAThe faituge of the gear tooth which caused the failure of the 42-degree gear box.NTSB BFO90DOA01Accident · Minor injuriesFinal reportBell TH-1L · Galax, VAThe lost of engine power because of a compressor stall.NTSB SEA89FA111Accident · Serious injuriesField investigationFinal reportOregon Helicopters UH-1L · Baring, WAFatigue failure of the tail rotor 42 degree gear box due to pilot induced overstress. Navy data and FAA type certificate limitations were not adhered to.NTSB MIA89LA081Accident · No injuriesLimited investigationFinal reportBell TH-1L · Greenville, FLInstallation of the improper sprag clutch assembly by the owners maintenance personnel resulting in failure of the sprag clutch and the loss of transmission drive.NTSB ATL88FA213Accident · Serious injuriesField investigationFinal reportBell TH-1L · Walterboro, SCThe military surplus helicopter experienced a 42 degree gear box failure while lifting a load of logs. The helicopter subsequently landed hard as the plt was attempting to autorotate to a ldg. Metallurgical examination of the gearbox revealed that a gear…
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