NTSB investigations: Lycoming HIO-360-D1A

16 cases on aircraft whose registry engine model is Lycoming HIO-360-D1A. 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

19802026
NTSB investigations: Lycoming HIO-360-D1A per year, 1980–2026: 16 cases
19801
19891
20081
20102
20111
20122
20131
20151
20172
20191
20221
20251
20261

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 ('41893'))
  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 ANC26LA068Accident · Minor injuriesClass 4 · LimitedInvestigation openSchweizer 269C · Skwentna, AKJul 5, 2026 · N907AL · Substantial damageNTSB ERA25LA144Accident · 1 fatalClass 3 · LimitedFinal reportSchweizer 269C · Mogadore, OHThe pilot’s decision to fly at low altitude, at night, and over water, which resulted in the helicopter’s collision with power lines.Mar 14, 2025 · N262LH · Substantial damageNTSB ERA22LA290Accident · No injuriesClass 4 · LimitedFinal reportSchweizer 300 C · Boonville, NCThe helicopter’s impact with a non-biological object, which resulted in substantial damage to a main rotor blade.Jun 23, 2022 · N2158T · Substantial damageNTSB GAA19CA284Accident · No injuriesData collectionFinal reportSchweizer 269C · Riverside, CAThe student pilot's failure to maintain yaw control and the engine's rpm during transition to a hover, which resulted in hard landing.May 24, 2019 · N269P · Substantial damageNTSB WPR17LA093Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Coolidge, AZA partial loss of engine power due to separation of the throttle cable.Apr 27, 2017 · N521AR · Substantial damageNTSB ERA17FA123Accident · 1 fatalField investigationFinal reportJordan Bruce C Pitts S2E · Apex, NCThe pilot's failure to maintain airplane control during the final approach to the runway in gusting tailwind conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall.Mar 8, 2017 · N30BJ · Substantial damageNTSB WPR15LA249Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C - Undesignat · Mesa, AZThe disbondment of a main rotor damper, which resulted in the degradation of its damping action and led to excessive main rotor vibrations and oscillations that caused substantial damage to the helicopter in flight and led to a hard landing.Aug 23, 2015 · N315TV · Substantial damageNTSB ERA13LA314Accident · Serious injuriesLimited investigationFinal reportSikorsky 269C · Burnham, METhe pilot's failure to maintain yaw control while operating out of ground effect at a low airspeed, which resulted in the loss of tail rotor effectiveness, an uncontrolled descent, and an in-flight collision with trees and terrain. Contributing to the…Jul 3, 2013 · N888ZW · Substantial damageNTSB CEN12CA431Accident · No injuriesData collectionFinal reportSchweizer 269C · Denton, TXThe flight instructor and student pilot exceeded the helicopter's takeoff performance, which resulted in low rotor rpm and settling.Jul 6, 2012 · N565LH · Substantial damageNTSB WPR12FA191Accident · Serious injuriesField investigationFinal reportHughes 269C · Phoenix, AZA loss of tail rotor drive due to a fatigue failure of the main transmission pinion, which resulted in a loss of directional control during cruise flight.May 2, 2012 · N380TL · Substantial damageNTSB CEN11LA606Accident · 1 fatalLimited investigationFinal reportBoeing A75N1(PT17) · Mt. Clemens, MIThe wing walker’s decision to release his grip of the airplane during an attempted aerial transfer from airplane to helicopter before both aircraft achieved the proper relative positioning for the transfer.Aug 21, 2011 · N49739 · 2 aircraft · No damageNTSB CEN10LA560Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Schaumburg, ILThe in-flight separation of the left aft cluster fitting assembly following the loss of torque on the lock nut due to a manufacturing defect.Sep 20, 2010 · N34LB · Substantial damageNTSB CEN10LA408Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Minden, NEThe pilot's inadequate flare during an autorotation, which resulted in a hard landing and subsequent rollover.Jul 19, 2010 · N410JM · Substantial damageNTSB LAX08CA138Accident · Serious injuriesData collectionFinal reportSchweizer 300C · Ogden, UTThe pilot under instruction's encounter with a settling with power condition, and the flight instructor's failure to maintain adequate rotor rpm during the subsequent go-around. Also causal was the instructor pilot's delayed remedial action during the…Jun 2, 2008 · N1510A · Substantial damageNTSB BFO89LA078Accident · Serious injuriesLimited investigationFinal reportHughes 269C · Parkersburg, WVThe pilot's inadvertent use (movement) of the collective control during engine operation before shutdown, and a subsequent lift-off, loss of control, roll over, and collision with the ground.Aug 31, 1989 · N58281 · Substantial damageNTSB NYC81DHA05Accident · No injuriesClosedHughes 300C · Whitehouse, NJNov 25, 1980 · N58281 · Substantial damage