# NTSB investigations: Hughes Helicopters HUGHES 369D: Loss of engine power (total)

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 WPR16LA032](https://openairdocs.org/ntsb/WPR16LA032.md): Hughes 369D · Carlisle, WA · Accident · No injuries · Limited investigation · Final report · Nov 24, 2015 · N50713 · Substantial damage
  > A total loss of engine power during cruise flight due to fuel exhaustion. Contributing to the accident was the improper calibration of the fuel quantity gauge.
- [NTSB CEN14LA398](https://openairdocs.org/ntsb/CEN14LA398.md): Hughes 369D · West Liberty, OH · Accident · Serious injuries · Limited investigation · Final report · Jul 29, 2014 · N89ZC · Substantial damage
  > A total loss of engine power, which resulted from fuel exhaustion due to the pilot’s failure to adequately monitor the fuel quantity during the flight.
- [NTSB ANC13LA074](https://openairdocs.org/ntsb/ANC13LA074.md): Hughes 500D · Delta Junction, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 6, 2013 · N134SH · Substantial damage
  > A total loss of engine power for undetermined reasons, which necessitated an emergency hovering autorotation, during which the helicopter impacted trees and terrain.
- [NTSB ERA13LA344](https://openairdocs.org/ntsb/ERA13LA344.md): Hughes 369D · Center Point, WV · Accident · Minor injuries · Limited investigation · Final report · Jul 29, 2013 · N31HM · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13FA075](https://openairdocs.org/ntsb/CEN13FA075.md): Hughes 369 · Childress, TX · Accident · 1 fatal · Field investigation · Final report · Nov 27, 2012 · N28MP · Substantial damage
  > The improper maintenance of the helicopter fuel system that resulted in erroneous fuel gauge indications and the pilot’s inadequate fuel management, both of which resulted in fuel exhaustion during a long-line hover. Also causal was the lack of company…
- [NTSB ERA12LA260](https://openairdocs.org/ntsb/ERA12LA260.md): Hughes 369D · McCormick, SC · Accident · Minor injuries · Limited investigation · Final report · Mar 30, 2012 · N868W · Substantial damage
  > The pilot's decision to use automotive fuel instead of the approved alternate fuel, which resulted in a total loss of engine power.
- [NTSB WPR12LA022](https://openairdocs.org/ntsb/WPR12LA022.md): Mcdonnell Douglas 500D · Colusa, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 27, 2011 · N61PJ · Substantial damage
  > A total loss of engine power while maneuvering at low altitude for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation. Contributing to the accident severity was the…
- [NTSB WPR10GA102](https://openairdocs.org/ntsb/WPR10GA102.md): Hughes 369D · Kooskia, ID · Accident · Serious injuries · Final report · Jan 8, 2010 · N500LW · Substantial damage
  > A complete loss of engine power due to the failure of the No. 2 bearing, which was precipitated by electrical arcing that occurred at an unknown time prior to the accident flight.
- [NTSB ERA10LA053](https://openairdocs.org/ntsb/ERA10LA053.md): Hughes 369 · Baxley, GA · Accident · No injuries · Limited investigation · Final report · Nov 6, 2009 · N89ZC · Substantial damage
  > A loss of engine power due to fuel starvation resulting from the pilot’s inadequate preflight inspection of the main fuel valve position.
- [NTSB ERA09FA414](https://openairdocs.org/ntsb/ERA09FA414.md): Hughes 369 · Franklin, PA · Accident · 1 fatal · Field investigation · Final report · Jul 22, 2009 · N61735 · Substantial damage
  > A loss of engine power due to fuel exhaustion as a result of the pilot's fuel mismanagement.
- [NTSB ERA09LA317](https://openairdocs.org/ntsb/ERA09LA317.md): Hughes 369D · Greenville, VA · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 2009 · N8356F · Substantial damage
  > The inadequate design of the fourth-stage turbine wheel, resulting in the fatigue failure of one airfoil and a subsequent loss of engine power.
- [NTSB ERA09LA031](https://openairdocs.org/ntsb/ERA09LA031.md): Hughes 369D · Carroll Township, PA · Accident · Serious injuries · Limited investigation · Final report · Oct 30, 2008 · N606AS · Substantial damage
  > A total loss of engine power due to the improper assembly of the compressor discharge tubes to the combustion liner.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470706')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '341' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/341/sequence?model=4470706

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