# NTSB investigations, OR: Powerplant sys/comp malf/fail

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 WPR24LA260](https://openairdocs.org/ntsb/WPR24LA260.md): Kitfox Series V · La Grande, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2024 · N53562 · Substantial damage
  > Separation of the propeller blades from progressive damage at the blade roots due to overtightening of the hub bolts.
- [NTSB WPR22LA177](https://openairdocs.org/ntsb/WPR22LA177.md): Piper PA-12 · Enterprise, OR · Accident · No injuries · Class 3 · Limited · Final report · May 14, 2022 · N3960M · Substantial damage
  > The inadequate maintenance and inspection of the crankshaft expansion plug, which resulted in the separation of the expansion plug from the crankshaft and the subsequent loss of oil and windshield obstruction during departure.
- [NTSB WPR15LA178](https://openairdocs.org/ntsb/WPR15LA178.md): Garlick Helicopters UH 1H · Cove, OR · Accident · No injuries · Limited investigation · Final report · May 31, 2015 · N462CC · Substantial damage
  > The failure of the engine-to-transmission drive shaft coupling assembly due to a fatigue fracture of one of its attachment bolts, which resulted in a loss of power to the main rotor.
- [NTSB WPR13LA363](https://openairdocs.org/ntsb/WPR13LA363.md): Quarnoccio Avid Flyer · White City, OR · Accident · No injuries · Limited investigation · Final report · Jul 13, 2013 · N399Q · Substantial damage
  > Excessive engine operating temperature, which resulted in engine failure and a forced landing. The reason for the excessive engine operating temperature could not be determined during postaccident engine examination.
- [NTSB ENG12IA012](https://openairdocs.org/ntsb/ENG12IA012.md): Mcdonnell Douglas MD-10-30F · Portland, OR · Incident · No injuries · Incident investigation · Final report · Feb 13, 2012 · N304FE · Minor damage
  > The fracture of the fan mid shaft due to a stress corrosion cracking initiated by local regions of corrosion pitting, which resulted from oil migration within the shaft and its subsequent degradation.
- [NTSB WPR11LA290](https://openairdocs.org/ntsb/WPR11LA290.md): Christen Industries Pitts S-1T · Alkali Lake, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 2011 · N77MN · Substantial damage
  > The loss of engine oil during cruise flight due to the failure of the front bearing oil seal.
- [NTSB WPR10LA419](https://openairdocs.org/ntsb/WPR10LA419.md): Hummel / Finberg Ultra Cruiser · Canby, OR · Accident · No injuries · Limited investigation · Final report · Aug 21, 2010 · N524DF · Substantial damage
  > The loss of engine power due to low cylinder compression.
- [NTSB WPR09LA219](https://openairdocs.org/ntsb/WPR09LA219.md): Ellumax Leasing Epic LT · Astoria, OR · Accident · No injuries · Limited investigation · Final report · Apr 24, 2009 · N653SB · Substantial damage
  > The partial loss of engine power during climb to cruise due to the failure of the engine's fuel control unit. Contributing to the accident was the incorrect machining of an internal component of the fuel control unit, and the failure of the assembling…
- [NTSB WPR09LA013](https://openairdocs.org/ntsb/WPR09LA013.md): Piper PA-31-350 · Portland, OR · Accident · No injuries · Limited investigation · Final report · Oct 14, 2008 · N3BT · Substantial damage
  > An in-flight engine fire due to the fatigue fracture of an exhaust pipe that resulted from a failure of the pipe's slip joint.
- [NTSB SEA08LA193](https://openairdocs.org/ntsb/SEA08LA193.md): Wasson Loehle Loehle P-40 · Oregon City, OR · Accident · Serious injuries · Limited investigation · Final report · Aug 31, 2008 · N510JW · Substantial damage
  > The loss of total engine power due to a cold seizure.
- [NTSB SEA08LA156](https://openairdocs.org/ntsb/SEA08LA156.md): Cessna TR182 · Bend, OR · Accident · Serious injuries · Limited investigation · Final report · Jun 30, 2008 · N7XZ · Substantial damage
  > The failure of the crankshaft during cruise flight due to fatigue.
- [NTSB LAX08LA168](https://openairdocs.org/ntsb/LAX08LA168.md): Mkii Lancair Legacy 2000 · Bend, OR · Accident · No injuries · Limited investigation · Final report · Jun 9, 2008 · N199L · Substantial damage
  > A total loss of engine power due to the fatigue failure of the Number 3 cylinder connecting rod.
- [NTSB SEA08LA098](https://openairdocs.org/ntsb/SEA08LA098.md): Kenney RV6 · Aurora, OR · Accident · No injuries · Limited investigation · Final report · Mar 27, 2008 · N65MK · Substantial damage
  > A propeller malfunction for undetermined reasons.

## 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" = 'OR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '340' 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/340/sequence?state=OR

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