NTSB investigations: Lycoming IO-540 series, UT

17 cases on aircraft whose registry engine model is Lycoming IO-540 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

19972026
NTSB investigations: Lycoming IO-540 series, UT per year, 1997–2026: 17 cases
19971
19991
20002
20031
20041
20091
20101
20111
20121
20141
20161
20191
20201
20211
20221
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.\"eventStateOrRegion\" = 'UT' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
  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 WPR26LA200Accident · No injuriesClass 4 · LimitedFinal reportMaule M-7-260C · Kanab, UTThe pilot’s failure to maintain directional control during the landing roll with gusting crosswind conditions.May 21, 2026 · N261MM · Substantial damageNTSB WPR22LA127Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-32R-300 · St. George, UTThe total loss of engine power for undetermined reasons.Mar 24, 2022 · N111NW · Substantial damageNTSB WPR22LA046Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV10 · Hurricane, UTThe total loss of engine power due to a loose fuel line at the fuel servo outlet port.Nov 22, 2021 · N54CT · Substantial damageNTSB WPR20LA239Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV7 · Henefer, UTThe total loss of engine power due to the separation of the idler gear shaft bolts as a result of improper installation, which allowed for the idler gear to become disengaged.Jul 26, 2020 · N514BS · Substantial damageNTSB WPR19FA148Accident · 2 fatalClass 3 · FieldFinal reportRobinson R44 · Alpine, UTThe noninstrument-rated pilot’s continued visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation and subsequent loss of control. Contributing to the accident was hypoxia due to the high altitude at which…May 17, 2019 · N744TW · Substantial damageNTSB GAA16CA488Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Cedar City, UTThe flight instructor’s delayed remedial action while providing hover instruction in gusting wind conditions, which resulted in dynamic roll-over.Sep 14, 2016 · N46HF · Substantial damageNTSB WPR15CA059Accident · Serious injuriesData collectionFinal reportCessna 182T · Wendover, UTThe pilot's failure to maintain situational awareness during a turn which resulted in a loss of airplane control.Dec 12, 2014 · N961GW · Substantial damageNTSB WPR12CA215Accident · No injuriesData collectionFinal reportMaule M-7-260 · Brigham City, UTThe pilot’s failure to maintain directional control while landing with a gusting crosswind.May 6, 2012 · N7ZF · Substantial damageNTSB WPR11CA433Accident · No injuriesData collectionFinal reportSherman Craig W Glasair III · Kanab, UTThe pilot’s failure to maintain directional control during the landing roll, as a result of a flat left main landing gear tire.Sep 3, 2011 · N17S · Substantial damageNTSB WPR10LA354Accident · 1 fatalLimited investigationFinal reportRobinson Helicopter R44 II · Salt Lake City, UTThe pilot's loss of directional control while attempting to move the helicopter laterally without first lifting it fully off its landing platform.Jul 16, 2010 · N944DW · Substantial damageNTSB WPR09CA105Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 II · Bountiful, UTThe pilot's improper decision to fly at low altitude while maneuvering in mountainous terrain in a canyon and inadvertently exceeding the climb capability of the helicopter. Contributing to the accident were a high density altitude, mountainous terrain, and a…Feb 1, 2009 · N944U · Substantial damageNTSB DEN04LA086Accident · Minor injuriesLimited investigationFinal reportEagle DW-1 · Circleville, UTthe encounter with severe turbulence during aerial application and the pilot's inability to maintain aircraft control resulting in the in-flight collision with terrain. A contributing factor was the low altitude.Jun 7, 2004 · N8805D · DestroyedNTSB DEN03LA134Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301 · Logan, UTthe loss of engine power due to partial mechanical failure, which resulted in a forced landing. Contributing factors include the pilot's improper preflight planning/preparation, the improper rigging of the propeller governor control, the high density altitude…Jul 18, 2003 · N8036D · Substantial damageNTSB DEN01LA001Accident · No injuriesLimited investigationFinal reportMaule M-7-235B · Ogden, UTThe pilot's failure to maintain a proper descent rate during landing flare/touchdown. A factor was the tail wheel failure due to overload.Oct 1, 2000 · N31078 · Substantial damageNTSB DEN00LA101Accident · Minor injuriesLimited investigationFinal reportSchumacher Swearingen SX-300 · Richfield, UTFuel starvation due to the unavailability of fuel to the engine for undetermined reasons and the pilot's misjudgment of distance/altitude on final approach. Contributing factors were the pilot's premature gear extension and the berm.Jun 4, 2000 · N2H · Substantial damageNTSB DEN99LA100Accident · No injuriesLimited investigationFinal reportButler SX-300 · Hill Afb, UTA failure of the left main landing gear attachment for undetermined reasons.Jun 12, 1999 · N120J · Substantial damageNTSB SEA97LA140Accident · Minor injuriesLimited investigationFinal reportRepublic RC-3-1 · Monument Valley, UTthe pilot's inadequate preflight planing/preparation, and his failure to maintain sufficient altitude or clearance from the terrain. Factors relating to the accident included: high, gusty, variable winds, and terrain induced downdrafts.Jun 13, 1997 · N6290K · Substantial damage