# NTSB investigations: Lycoming O-360 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 WPR21LA051](https://openairdocs.org/ntsb/WPR21LA051.md): Maule MX7 · Moab, UT · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 12, 2020 · N721P · Substantial damage
  > The pilot's failure to maintain airplane control during takeoff from an unimproved airstrip, which resulted in a nose-over.
- [NTSB WPR14FA158](https://openairdocs.org/ntsb/WPR14FA158.md): Robinson Helicopter R22 Beta · Green River, UT · Accident · 2 fatal · Field investigation · Final report · Apr 6, 2014 · N13HG · Substantial damage
  > A loss of engine power due to fuel contamination while maneuvering at a low altitude and the pilot's inadequate preflight inspection, which failed to detect the contamination.
- [NTSB WPR13LA315](https://openairdocs.org/ntsb/WPR13LA315.md): Robinson Helicopter R22 · Alta, UT · Accident · Minor injuries · Limited investigation · Final report · Jul 8, 2013 · N712U · Destroyed
  > The flight instructor's decision to follow a route over mountainous terrain in conditions that exceeded the helicopter’s ability to maintain terrain clearance.
- [NTSB WPR12CA307](https://openairdocs.org/ntsb/WPR12CA307.md): Robinson Helicopter R22 · Bountiful, UT · Accident · No injuries · Data collection · Final report · Jul 16, 2012 · N47WH · Substantial damage
  > The student’s failure to maintain adequate rotor rpm and the flight instructor’s delayed remedial action, which resulted in a hard landing.
- [NTSB SEA07CA171](https://openairdocs.org/ntsb/SEA07CA171.md): Robinson R22 Beta II · Park City, UT · Accident · No injuries · Data collection · Final report · Jun 18, 2007 · N712U · Substantial damage
  > The pilot's failure to maintain rotor RPM during hover taxi. A contributing factor was the high density altitude weather condition.
- [NTSB SEA07CA080](https://openairdocs.org/ntsb/SEA07CA080.md): Robinson R22 Beta 2 · Taylorsville, UT · Accident · Minor injuries · Data collection · Final report · Mar 20, 2007 · N74347 · Substantial damage
  > The flight instructor's failure to maintain aircraft control during the flare/touchdown while practicing an autorotation which resulted in a hard landing. A factor which contributed to the accident was the downdraft wind condition.
- [NTSB SEA07LA028](https://openairdocs.org/ntsb/SEA07LA028.md): Robinson R-22 · Bountiful, UT · Accident · Minor injuries · Limited investigation · Final report · Dec 9, 2006 · N611SC · Substantial damage
  > The pilot's improper decision to fly up a mountain canyon at low level without knowledge of the wind conditions. Factors associated with the accident are gusty winds, downdrafts, and rough/uneven terrain.
- [NTSB SEA07LA018](https://openairdocs.org/ntsb/SEA07LA018.md): Aviat A-1B · Fruitland, UT · Accident · No injuries · Limited investigation · Final report · Nov 15, 2006 · N85HY · Substantial damage
  > The pilot's improper in-flight decision to land on snow covered terrain. Deep snow on the terrain that the pilot chose to land on was a factor in this accident.
- [NTSB DEN07CA013](https://openairdocs.org/ntsb/DEN07CA013.md): Robinson R22 Beta · Monticello, UT · Accident · No injuries · Data collection · Final report · Oct 16, 2006 · N224VR · Substantial damage
  > an airframe vibration for reasons undetermined, resulting in the pilot performing a precautionary landing, and obstacle clearance not possible.
- [NTSB SEA06CA072](https://openairdocs.org/ntsb/SEA06CA072.md): Robinson R22 Beta · Tooele, UT · Accident · Minor injuries · Data collection · Final report · Apr 8, 2006 · N921U · Substantial damage
  > The pilot's failure to maintain control of the helicopter during the takeoff initial climb, which resulted in an in-flight collision with the ground. A contributing factor was the gusty wind condition.
- [NTSB DEN05CA085](https://openairdocs.org/ntsb/DEN05CA085.md): Robinson R22 Beta II · Wallsburg, UT · Accident · No injuries · Data collection · Final report · Jun 7, 2005 · N993RW · Substantial damage
  > the flight instructor's inadequate in-flight planning and decision making and failure to maintain aircraft control. Contributing factor's include the flight instructor's inadequate supervision of the flight, the student pilot's failure to maintain rotor rpm,…
- [NTSB DEN05LA082](https://openairdocs.org/ntsb/DEN05LA082.md): Robinson R22 Beta · Provo, UT · Accident · Minor injuries · Limited investigation · Final report · May 23, 2005 · N553SH · Substantial damage
  > the dual student’s failure to maintain adequate rotor rpm and the inadequate supervision by the instructor.
- [NTSB DEN05LA042](https://openairdocs.org/ntsb/DEN05LA042.md): Robinson R22 · Park City, UT · Accident · No injuries · Limited investigation · Final report · Dec 19, 2004 · N993RW · Substantial damage
  > the student pilot's failure to maintain aircraft control, and the instructor's inadequate supervision by her failure to assure adequate rotor rpm was maintained.
- [NTSB DEN05LA036](https://openairdocs.org/ntsb/DEN05LA036.md): Robinson R22 · Provo, UT · Accident · Minor injuries · Limited investigation · Final report · Dec 15, 2004 · N333UH · Substantial damage
  > the flight instructor's failure to maintain clearance from the water. Contributing to the accident was the flight instructor's inability to detect a descent because of the obscuration between the water and the horizon due to the gray sky
- [NTSB DEN04CA143](https://openairdocs.org/ntsb/DEN04CA143.md): Robinson R22 Beta 2 · Spanish Fork, UT · Accident · Minor injuries · Data collection · Final report · Sep 16, 2004 · N7533E · Substantial damage
  > the pilot's failure to maintain adequate rotor rpm during a practice autorotation, and the flight instructor's improper flare. A contributing factor was the instructor's inadequate supervision of the pilot.
- [NTSB DEN04LA142](https://openairdocs.org/ntsb/DEN04LA142.md): Robinson R22 · Spanish Fork, UT · Accident · Minor injuries · Limited investigation · Final report · Sep 14, 2004 · N777UH · Substantial damage
  > the instructor's premature flare, resulting in a hard landing, and his failure to align the helicopter with the direction of travel, resulting in a rollover.Contributing factors were the low rotor RPM and inadequate airspeed. The reason for the loss of engine…
- [NTSB DEN04CA061](https://openairdocs.org/ntsb/DEN04CA061.md): Robinson R22 · Nephi, UT · Accident · No injuries · Data collection · Final report · Apr 14, 2004 · N555UH · Substantial damage
  > the flight instructor's failure to maintain control of the helicopter resulting in a hard landing.

## 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 ('41575'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41575&state=UT

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.