NTSB investigations: Lycoming O-540-F1B5

16 cases on aircraft whose registry engine model is Lycoming O-540-F1B5, where the defining event was Loss of control in flight. 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

20092026
NTSB investigations: Lycoming O-540-F1B5 per year, 2009–2026: 16 cases
20091
20101
20131
20141
20183
20191
20202
20221
20233
20242

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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('42353')
      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\" = '240'))
  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 CEN24LA343Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Grand Forks, NDThe student pilot’s failure to maintain helicopter control which resulted in impact with the ground. Contributing to the outcome was the flight instructor’s delayed remedial action.Sep 6, 2024 · N896J · Substantial damageNTSB CEN24LA135Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Knox City, TXThe pilot’s failure to maintain directional control during takeoff, which resulted in a rollover and an impact with terrain.Mar 13, 2024 · N3040P · Substantial damageNTSB ERA23LA350Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Immokalee, FLThe flight instructor’s inadequate supervision of the student pilot during hover flight, which resulted in main rotor blade contact with the ground after the student pilot applied a sudden control input.Aug 26, 2023 · N4147Q · Substantial damageNTSB CEN23LA219Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Pontiac, MIThe flight crew’s inadequate compensation for gusting wind, and the flight instructor’s delayed remedial action, which resulted in impact with the ground.May 31, 2023 · N7102Z · Substantial damageNTSB CEN23LA130Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 · De Kalb, TXThe pilot’s inability to maintain control of the helicopter due to his failure to maintain rotor speed. Contributing to the accident was the failure of the helicopter’s low rotor speed warning system.Mar 11, 2023 · N4164T · Substantial damageNTSB CEN22FA151Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 · Rowlett, TXA loss of helicopter control while maneuvering, which resulted in main rotor blade contact with the tailboom in flight, tail boom separation, and an uncontrolled descent.Mar 25, 2022 · N514CD · DestroyedNTSB CEN21LA095Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Morris, ILThe pilot's inadequate pedal application during liftoff with a tailwind, which resulted in a loss of yaw control and a subsequent impact with terrain.Dec 20, 2020 · N3264U · Substantial damageNTSB CEN21LA084Accident · 2 fatalClass 3 · LimitedFinal reportRobinson R44 · Colorado City, TXThe pilot’s loss of control and exceedance of performance and/or structural limitations during low-altitude operations, which resulted in an inflight breakup.. Contributing to the accident was the pilot’s impairment from the effects of tetrahydrocannabinol.Dec 10, 2020 · N7085Z · DestroyedNTSB GAA19CA124Accident · Serious injuriesData collectionFinal reportRobinson R44 · Santa Maria Island, FLThe pilot's loss of helicopter control while maneuvering at a low altitude after being struck in the head by a bird.Jan 2, 2019 · N772MG · Substantial damageNTSB GAA19CA063Accident · No injuriesData collectionFinal reportRobinson R44 · Knox City, TXThe pilot's failure to maintain adequate airspeed with a tailwind, which resulted in the helicopter settling with power, and his subsequent incorrect collective application while attempting to recover, which resulted in a loss of helicopter control due to a…Nov 18, 2018 · N4167Y · Substantial damageNTSB GAA18CA450Accident · Minor injuriesData collectionFinal reportRobinson R44 · Lantana, FLThe student pilot’s improper pitch control during landing, which resulted in a dynamic rollover.Jul 27, 2018 · N479AT · Substantial damageNTSB GAA18CA408Accident · No injuriesData collectionFinal reportRobinson R44 · Rulo, NEThe pilot's improper collective application, which resulted in low rotor rpm during the takeoff climb and a subsequent ground collision. Contributing to the accident was the pilot’s self-induced pressure to complete the operation.Jul 10, 2018 · N144DJ · Substantial damageNTSB CEN14CA403Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 · Allen, NEThe pilot did not ensure sufficient obstacle clearance for potential wind conditions, which resulted in his loss of control of the helicopter.Jul 31, 2014 · N7194H · Substantial damageNTSB CEN13LA448Accident · Serious injuriesLimited investigationFinal reportRobinson R44 · Capron, ILThe pilot's failure to maintain main rotor speed while maneuvering at low altitude during an agricultural application flight, which resulted in an uncontrolled descent into terrain.Jul 28, 2013 · N9681R · Substantial damageNTSB ANC10LA053Accident · 1 fatalLimited investigationFinal reportRobinson Helicopter R44 · Unalaska, AKThe pilot's inappropriate low altitude maneuvering, which resulted in a collision with terrain.Jun 20, 2010 · N333DV · Substantial damageNTSB ERA09FA497Accident · 1 fatalField investigationFinal reportRobinson R44 · Jackson, MSThe pilot's failure to maintain adequate main rotor rpm, for undetermined reasons.Sep 1, 2009 · N33PX · Substantial damage