# NTSB investigations: Lycoming IO-540 series, UT

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR26LA200](https://openairdocs.org/ntsb/WPR26LA200.md): Maule M-7-260C · Kanab, UT · Accident · No injuries · Class 4 · Limited · Final report · May 21, 2026 · N261MM · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with gusting crosswind conditions.
- [NTSB WPR22LA127](https://openairdocs.org/ntsb/WPR22LA127.md): Piper PA-32R-300 · St. George, UT · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 24, 2022 · N111NW · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB WPR22LA046](https://openairdocs.org/ntsb/WPR22LA046.md): Vans RV10 · Hurricane, UT · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 22, 2021 · N54CT · Substantial damage
  > The total loss of engine power due to a loose fuel line at the fuel servo outlet port.
- [NTSB WPR20LA239](https://openairdocs.org/ntsb/WPR20LA239.md): Vans RV7 · Henefer, UT · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 26, 2020 · N514BS · Substantial damage
  > The 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.
- [NTSB WPR19FA148](https://openairdocs.org/ntsb/WPR19FA148.md): Robinson R44 · Alpine, UT · Accident · 2 fatal · Class 3 · Field · Final report · May 17, 2019 · N744TW · Substantial damage
  > The 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…
- [NTSB GAA16CA488](https://openairdocs.org/ntsb/GAA16CA488.md): Robinson Helicopter R44 II · Cedar City, UT · Accident · No injuries · Data collection · Final report · Sep 14, 2016 · N46HF · Substantial damage
  > The flight instructor’s delayed remedial action while providing hover instruction in gusting wind conditions, which resulted in dynamic roll-over.
- [NTSB WPR15CA059](https://openairdocs.org/ntsb/WPR15CA059.md): Cessna 182T · Wendover, UT · Accident · Serious injuries · Data collection · Final report · Dec 12, 2014 · N961GW · Substantial damage
  > The pilot's failure to maintain situational awareness during a turn which resulted in a loss of airplane control.
- [NTSB WPR12CA215](https://openairdocs.org/ntsb/WPR12CA215.md): Maule M-7-260 · Brigham City, UT · Accident · No injuries · Data collection · Final report · May 6, 2012 · N7ZF · Substantial damage
  > The pilot’s failure to maintain directional control while landing with a gusting crosswind.
- [NTSB WPR11CA433](https://openairdocs.org/ntsb/WPR11CA433.md): Sherman Craig W Glasair III · Kanab, UT · Accident · No injuries · Data collection · Final report · Sep 3, 2011 · N17S · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll, as a result of a flat left main landing gear tire.
- [NTSB WPR10LA354](https://openairdocs.org/ntsb/WPR10LA354.md): Robinson Helicopter R44 II · Salt Lake City, UT · Accident · 1 fatal · Limited investigation · Final report · Jul 16, 2010 · N944DW · Substantial damage
  > The pilot's loss of directional control while attempting to move the helicopter laterally without first lifting it fully off its landing platform.
- [NTSB WPR09CA105](https://openairdocs.org/ntsb/WPR09CA105.md): Robinson Helicopter R44 II · Bountiful, UT · Accident · Minor injuries · Data collection · Final report · Feb 1, 2009 · N944U · Substantial damage
  > The 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…
- [NTSB DEN04LA086](https://openairdocs.org/ntsb/DEN04LA086.md): Eagle DW-1 · Circleville, UT · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 2004 · N8805D · Destroyed
  > the 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.
- [NTSB DEN03LA134](https://openairdocs.org/ntsb/DEN03LA134.md): Piper PA-32R-301 · Logan, UT · Accident · No injuries · Limited investigation · Final report · Jul 18, 2003 · N8036D · Substantial damage
  > the 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…
- [NTSB DEN01LA001](https://openairdocs.org/ntsb/DEN01LA001.md): Maule M-7-235B · Ogden, UT · Accident · No injuries · Limited investigation · Final report · Oct 1, 2000 · N31078 · Substantial damage
  > The pilot's failure to maintain a proper descent rate during landing flare/touchdown. A factor was the tail wheel failure due to overload.
- [NTSB DEN00LA101](https://openairdocs.org/ntsb/DEN00LA101.md): Schumacher Swearingen SX-300 · Richfield, UT · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 2000 · N2H · Substantial damage
  > Fuel 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.
- [NTSB DEN99LA100](https://openairdocs.org/ntsb/DEN99LA100.md): Butler SX-300 · Hill Afb, UT · Accident · No injuries · Limited investigation · Final report · Jun 12, 1999 · N120J · Substantial damage
  > A failure of the left main landing gear attachment for undetermined reasons.
- [NTSB SEA97LA140](https://openairdocs.org/ntsb/SEA97LA140.md): Republic RC-3-1 · Monument Valley, UT · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 1997 · N6290K · Substantial damage
  > the 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.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/ntsb?engine=41530&state=UT

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