NTSB investigations: Lycoming IO-540-AE1A5, 2021

15 cases on aircraft whose registry engine model is Lycoming IO-540-AE1A5. 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

20072026
NTSB investigations: Lycoming IO-540-AE1A5, 2021 per year, 2007–2026: 160 cases
20075
20084
20096
20103
20113
20129
20138
20146
201510
20166
201711
20188
201914
20205
202115
20228
20238
202412
202513
20266

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 year(c.\"eventDate\") = 2021
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41899'))
  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 ERA22FA098Accident · 4 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Bronson, FLA loss of control due to spatial disorientation as a result of the noninstrument-rated pilot’s improper decision to attempt a visual flight rules flight at night into an area of known reduced visibility due to fog.Dec 31, 2021 · N442VB · DestroyedNTSB CEN22LA034Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Fort Davis, TXThe pilot’s encounter of a downdraft from which there was insufficient altitude to recover.Nov 10, 2021 · N3027W · Substantial damageNTSB ERA22FA010Accident · 1 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Cornwall, NYThe non-instrument-rated pilot’s continued flight into deteriorating weather conditions, which resulted in a loss of control due to spatial disorientation.Oct 10, 2021 · N637HP · DestroyedNTSB ANC22LA001Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Palmer, AKThe unmanned aircraft pilot’s failure to yield the right of way to the helicopter.Oct 10, 2021 · N555EL · 2 aircraft · Substantial damageNTSB ERA21LA387Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Miami, FLThe pilot’s loss of helicopter control after landing. Also causal was the pilot’s intentional operation of the helicopter without the required training, experience, and endorsements.Sep 28, 2021 · N212HT · Substantial damageNTSB CEN21LA369Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Wheeling, ILA partial loss of engine power for reasons that could not be determined based on available information.Aug 11, 2021 · N4043B · Substantial damageNTSB CEN21LA349Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Randolph, WIThe pilot’s failure to maintain clearance from power lines during a low-level aerial application flight.Jul 31, 2021 · N285RG · Substantial damageNTSB CEN21LA339Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · West Liberty, IAThe pilot’s failure to see and avoid a wire while maneuvering at low altitude during an aerial application flight, resulting in a collision with the wire.Jul 20, 2021 · N983HA · Substantial damageNTSB ERA21LA295Accident · 2 fatalClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Point Harbor, NCThe noncertificated pilot’s decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation over a large body of water and a high velocity impact with the water. Contributing to the accident…Jul 19, 2021 · N4529J · DestroyedNTSB CEN21FA330Accident · 1 fatalClass 3 · FieldFinal reportRobinson R44 · Elgin, MNThe pilot’s decision to operate the helicopter under powerlines, which resulted in a main rotor blade striking a powerline, causing the helicopter to descend from a low altitude and impact terrain.Jul 19, 2021 · N44BJ · DestroyedNTSB ERA21LA292Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Princeton, KYThe pilot’s inadequate preflight planning in that he failed to accurately determine the takeoff weight of the helicopter, which resulted in exceeding the helicopter’s maximum weight capability.Jul 16, 2021 · N512RT · Substantial damageNTSB CEN21LA284Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Reserve, LAA total loss of engine power for undetermined reasons.Jun 10, 2021 · N202SM · Substantial damageNTSB CEN21LA173Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Dustin, OKThe pilot’s insufficient monitoring of the helicopter’s power while flying at low altitude and at low airspeed, which resulted in the loss of rotor rpm and impact with a tree and terrain.Mar 26, 2021 · N178DF · Substantial damageNTSB GAA21WA047Accident · Minor injuriesClass 5 · ForeignRobinson Helicopter R44 II · Rosh Pinna, IsraelMar 13, 2021 · N97KC · Substantial damageNTSB CEN21LA109Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Albany, TXThe pilot’s inadequate pretakeoff checks which resulted in the magneto switch (key) remaining in the OFF position during the takeoff sequence and initial climb and the right magneto grounding intermittently.Jan 9, 2021 · N322SH · Substantial damage