# NTSB investigations: Robinson Helicopter R44: Off-field or emergency landing NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB CEN24LA027](https://openairdocs.org/ntsb/CEN24LA027.md): Robinson Helicopter R44 · Rowlett, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 26, 2023 · N141CD · Substantial damage > A malfunction of the helicopter’s Engine Monitoring Unit (EMU)/Governor Controller for undetermined reasons. Contributing to the accident was the flight instructor’s failure to turn off the EMU/Governor Controller per the emergency checklist when the… - [NTSB ERA22LA168](https://openairdocs.org/ntsb/ERA22LA168.md): Robinson Helicopter R44 · Myrtle Beach, SC · Accident · No injuries · Class 3 · Limited · Final report · Mar 26, 2022 · N288L · Substantial damage > Vibration in the airframe and flight controls for reasons that could not be determined based on the available evidence. - [NTSB CEN20LA286](https://openairdocs.org/ntsb/CEN20LA286.md): Robinson R44 · Welsh, LA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 2, 2020 · N7511D · Substantial damage > A partial loss of engine power while in flight due to corrosion of engine components, which resulted in a loss of control and a subsequent impact with terrain. - [NTSB CEN19LA230](https://openairdocs.org/ntsb/CEN19LA230.md): Robinson R44 · Ida Grove, IA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 21, 2019 · N459TA · Substantial damage > A total loss of engine power during an aerial application flight for undetermined reasons. - [NTSB ERA17LA257](https://openairdocs.org/ntsb/ERA17LA257.md): Robinson Helicopter R44 · Myrtle Beach, SC · Accident · No injuries · Limited investigation · Final report · Jul 24, 2017 · N828RD · Substantial damage > A loss of available power to the main rotor due to a fractured exhaust pushrod and housing, which allowed engine oil to coat the V-belts. Contributing to the accident was the pilot's decision to continue the tour and his failure to maintain adequate rotor rpm… - [NTSB WPR17LA097](https://openairdocs.org/ntsb/WPR17LA097.md): Robinson Helicopter R44 · Santa Barbara, CA · Accident · Serious injuries · Limited investigation · Final report · May 5, 2017 · N981RR · Destroyed > A total loss of engine power during cruise flight due to the failure of an engine piston rod for reasons that could not be determined due to extensive damage. - [NTSB GAA17CA151](https://openairdocs.org/ntsb/GAA17CA151.md): Robinson Helicopter R44 · Holtville, CA · Accident · No injuries · Data collection · Final report · Feb 14, 2017 · N4534G · Substantial damage > The pilot’s initiation of a left turn at a low altitude with low airspeed and a tailwind while operating near maximum gross weight, which resulted in the helicopter losing altitude, touching down on a dirt surface, and a subsequent dynamic rollover. - [NTSB ERA16LA216](https://openairdocs.org/ntsb/ERA16LA216.md): Robinson Helicopter R44 · Chatham, MA · Accident · Serious injuries · Limited investigation · Final report · Jun 17, 2016 · N141TM · Substantial damage > The inadequate maintenance of the lower forward clutch actuator bearing for a prolonged period of time, which resulted in a bearing failure. Contributing to the accident was an erroneous maintenance entry, which resulted in the helicopter being operated… - [NTSB ANC15LA073](https://openairdocs.org/ntsb/ANC15LA073.md): Robinson Helicopter R44 · Fort Glenn, AK · Accident · No injuries · Limited investigation · Final report · Sep 19, 2015 · N7162R · Substantial damage > The separation of the tail rotor gearbox from the tailboom attachment point due to overstress loads imposed by a tail rotor blade imbalance as the result of impact with an undetermined object during low-level flight operations. - [NTSB WPR10LA420](https://openairdocs.org/ntsb/WPR10LA420.md): Robinson R44 · San Diego, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2010 · N7186Z · Substantial damage > The pilot's failure to utilize carburetor heat during initial climb, which resulted in a loss of engine power due to carburetor icing. - [NTSB ERA10LA019](https://openairdocs.org/ntsb/ERA10LA019.md): Robinson R44 · La Belle, FL · Accident · Serious injuries · Limited investigation · Final report · Oct 15, 2009 · N3038W · Substantial damage > The loss of main rotor rpm due to the failure of one or more of the drive belts for undetermined reasons. - [NTSB WPR09CA339](https://openairdocs.org/ntsb/WPR09CA339.md): Robinson Helicopter R44 · Marysville, CA · Accident · No injuries · Data collection · Final report · Jul 13, 2009 · N244HP · Substantial damage > The pilot’s failure to maintain adequate clearance from the power line wires. - [NTSB SEA08LA104](https://openairdocs.org/ntsb/SEA08LA104.md): Robinson R44 · Pahrump, NV · Accident · No injuries · Limited investigation · Final report · Apr 5, 2008 · N510JM · Substantial damage > The loss of the engine to transmission drive train continuity while on approach for undetermined reasons. Contributing to the accident were lack of suitable terrain for a run-on landing, and cars on the race track. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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.aircraft_model_code IN ('7640120') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '440' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/440/sequence?model=7640120 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.