Final NTSB investigations: Lycoming YIO-390 series

8 cases on aircraft whose registry engine model is Lycoming YIO-390 series. 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

20182026
Final NTSB investigations: Lycoming YIO-390 series per year, 2018–2026: 8 cases
20181
20191
20233
20253

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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('42418'))
  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 ANC25LA111Accident · No injuriesClass 4 · LimitedFinal report217whiskeymike SQ12 · McGrath, AKThe pilot’s failure to maintain clearance from a hole in the tundra, which resulted in impact with terrain.Sep 20, 2025 · N217WM · Substantial damageNTSB ANC25LA047Accident · No injuriesClass 4 · LimitedFinal reportBrian Peck RV-14 · Camas, WAThe pilot’s failure to maintain directional control during landing roll which resulted in a runway excursion.Jun 10, 2025 · N991RS · Substantial damageNTSB ERA25LA374Accident · No injuriesClass 4 · LimitedFinal reportFlying Cloud AL18 · Ridgeland, SCThe pilot’s failure to maintain directional control of the airplane during landing.Jun 7, 2025 · N859SS · Substantial damageNTSB CEN24LA035Accident · No injuriesClass 4 · LimitedFinal reportGrassman Timothy B RV-14A · Houston, TXThe bird strike to the airplane’s vertical stabilizer during an approach for landing.Nov 3, 2023 · N5875G · Substantial damageNTSB CEN23FA359Accident · 1 fatalClass 3 · FieldFinal reportVans RV14 · Virden, ILThe pilot/builder’s improper configuration of the canopy latch micro switch, which incorrectly signaled a closed canopy before flight that resulted in an inflight opening of the airplane’s canopy, an upset of the airplane, and a loss of control from which the…Aug 12, 2023 · N6161 · Substantial damageNTSB ERA23LA195Accident · Serious injuriesClass 3 · LimitedFinal reportRichard Spatz RV-14A · Fallston, MDThe pilot’s failure to discontinue an unstabilized approach, resulting in an aerodynamic stall and collision with terrain.Apr 13, 2023 · N412RS · Substantial damageNTSB WPR19LA189Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV14 · Aumsville, ORAn inflight fire that originated in the engine compartment for reasons that could not be determined based on available evidence.Jul 16, 2019 · N365EM · DestroyedNTSB GAA18CA379Accident · No injuriesData collectionFinal reportDan Jelinek Backcountry Supercub · Douglas, WYThe pilot’s overcorrection with rudder during takeoff, which resulted in a loss of directional control.Jun 11, 2018 · N7455 · Substantial damage