# NTSB investigations: Amateur-built UNKNOWN ENG, WA

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.

Page 1 of 2 · 89 cases

## Latest cases

- [NTSB WPR26LA265](https://openairdocs.org/ntsb/WPR26LA265.md): Vans RV-7A · Covington, WA · Accident · No injuries · Class 4 · Limited · Final report · Jul 17, 2026 · N987CW · Substantial damage
  > The pilot’s improper pitch control during landing, which resulted in a bounced landing, nose landing gear collapse, and nose over.
- [NTSB WPR26LA072](https://openairdocs.org/ntsb/WPR26LA072.md): Zenith 750 · Yacolt, WA · Accident · No injuries · Class 4 · Limited · Final report · Dec 23, 2025 · N186BG · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR25LA308](https://openairdocs.org/ntsb/WPR25LA308.md): Thomas Graham Teenie Two · Chehalis, WA · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 11, 2025 · N311TS · Substantial damage
  > The pilot's improper decision to take off with the airplane over its maximum allowable gross weight, which degraded its climb performance and led to a subsequent off airport landing.
- [NTSB WPR24LA188](https://openairdocs.org/ntsb/WPR24LA188.md): David Fisher Murphy Moose · Ocean Shores, WA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 8, 2024 · N9695W · Substantial damage
  > The pilot’s hard, bounced landing, subsequent failure to maintain adequate airspeed, and his exceedance of the airplane’s critical angle of attack during a go-around, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB WPR24LA113](https://openairdocs.org/ntsb/WPR24LA113.md): Kitfox S7 Super Sport · Asotin, WA · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 16, 2024 · N295P · Substantial damage
  > Pilot’s failure to maintain clearance from powerlines during low altitude flying.
- [NTSB WPR20LA014](https://openairdocs.org/ntsb/WPR20LA014.md): Vans RV 6 · Spanaway, WA · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 23, 2019 · N615RJ · Substantial damage
  > A total loss of engine power during the initial climb for reasons that could not be determined.
- [NTSB GAA20CA018](https://openairdocs.org/ntsb/GAA20CA018.md): Foxworthy Rick A Sonex · Langley, WA · Accident · Serious injuries · Data collection · Final report · Oct 11, 2019 · N612RF · Substantial damage
  > The pilot's failure to maintain a proper approach path, which resulted in impact with a tree.
- [NTSB WPR19FA241](https://openairdocs.org/ntsb/WPR19FA241.md): Glaser Dirks DG 300 Elan · Wilkeson, WA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 25, 2019 · N300GG · Substantial damage
  > The pilot’s delayed decision to land following a loss of thermal lift, which resulted in collision with trees during the landing approach.
- [NTSB WPR19FA091](https://openairdocs.org/ntsb/WPR19FA091.md): Bell UH1B · Forks, WA · Accident · 1 fatal · Class 2 · Field · Final report · Mar 8, 2019 · N64RA · Destroyed
  > A total loss of engine power due to the failure of the gas generator sealing disk as a result of the operator’s exceedance of the sealing disk life limits at too low an altitude for the pilot to accomplish a successful autorotation which resulted in the…
- [NTSB WPR18FA261](https://openairdocs.org/ntsb/WPR18FA261.md): Gruber Beelzabub · Rochester, WA · Accident · 2 fatal · Class 3 · Field · Final report · Sep 14, 2018 · N382T · Substantial damage
  > The pilot’s failure to maintain clearance from a tree while maneuvering at a low altitude.
- [NTSB GAA18CA223](https://openairdocs.org/ntsb/GAA18CA223.md): Ken Olson Scamp · Raymond, WA · Accident · No injuries · Data collection · Final report · Apr 22, 2018 · N964TA · Substantial damage
  > The pilot's failure to maintain a proper landing flare, which resulted in an aerodynamic stall, bounced landing, and subsequent secondary stall during a go-around attempt.
- [NTSB WPR17LA153](https://openairdocs.org/ntsb/WPR17LA153.md): Clark James T Vans RV8 · Spokane, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 14, 2017 · N559JC · Substantial damage
  > An inflight engine fire for reasons that could not be determined based on the available information, which melted the air filter element and obstructed the engine's air intakes, resulting in a total loss of engine power.
- [NTSB WPR16LA011](https://openairdocs.org/ntsb/WPR16LA011.md): Christopher Tom Kitfox 5 · Battle Ground, WA · Accident · No injuries · Limited investigation · Final report · Oct 14, 2015 · N533RC · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR16LA003](https://openairdocs.org/ntsb/WPR16LA003.md): Cessna TU206G · Fall City, WA · Accident · Serious injuries · Limited investigation · Final report · Oct 3, 2015 · N206HL · Substantial damage
  > The airplane’s collision with the ground short of the runway for reasons that could not be determined based on the available evidence.
- [NTSB WPR15LA235](https://openairdocs.org/ntsb/WPR15LA235.md): Cleveland Allan B Nieuport 11# · Bellingham, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 7, 2015 · N917AB · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or anomalies that would have precluded normal operation.
- [NTSB GAA15CA139](https://openairdocs.org/ntsb/GAA15CA139.md): Randall W Grandpre CH-701 Zenith · Quincy, WA · Accident · Minor injuries · Data collection · Final report · Jun 26, 2015 · N70WG · Substantial damage
  > The pilot's inadequate selection of a take-off area, resulting in a collision with obstacles and a loss of directional control.
- [NTSB WPR15CA053](https://openairdocs.org/ntsb/WPR15CA053.md): Stafford Wayne H Glastar · Monroe, WA · Accident · No injuries · Data collection · Final report · Dec 3, 2014 · N265EP · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and encounter with terrain.
- [NTSB WPR14LA340](https://openairdocs.org/ntsb/WPR14LA340.md): Hughes 269C · Darrington, WA · Accident · No injuries · Limited investigation · Final report · Aug 11, 2014 · N7432F · Substantial damage
  > Maintenance personnel’s failure to secure the throttle mount bracket during a recent engine installation, which resulted in the loss of throttle movement and an inability to control engine power.
- [NTSB WPR14CA022](https://openairdocs.org/ntsb/WPR14CA022.md): Collins Zenith Stol CH 701 · Deer Park, WA · Accident · No injuries · Data collection · Final report · Oct 19, 2013 · N2849C · Substantial damage
  > The pilot's inadequate flare and failure to maintain control of the airplane during the landing with a tailwind.
- [NTSB WPR13LA360](https://openairdocs.org/ntsb/WPR13LA360.md): Versteeg Helicycle · Richland, WA · Accident · No injuries · Limited investigation · Final report · Aug 5, 2013 · N234RV · Substantial damage
  > The pilot’s failure to maintain helicycle control during hover due to an inadvertent control input.
- [NTSB WPR12CA344](https://openairdocs.org/ntsb/WPR12CA344.md): Rotorway Exec · Colville, WA · Accident · No injuries · Data collection · Final report · Aug 5, 2012 · N156RW · Substantial damage
  > The pilot's lack of experience in the helicopter, which resulted in his failure to maintain ground clearance during the taxi hover, followed by inadvertent ground contact and rollover.
- [NTSB WPR12CA320](https://openairdocs.org/ntsb/WPR12CA320.md): Piper PA-30 · Yelm, WA · Accident · No injuries · Data collection · Final report · Jul 22, 2012 · N8574Y · Substantial damage
  > The pilot's failure to maintain an adequate airspeed on approach and his inadequate flare, which resulted in a hard landing.
- [NTSB WPR12CA288](https://openairdocs.org/ntsb/WPR12CA288.md): Dg-Flugzeugbau DG-500MB · Richland, WA · Accident · Minor injuries · Data collection · Final report · Jun 24, 2012 · N505JL · Substantial damage
  > The failure of the spoilers to retract because the right wing spoiler’s lower plate became jammed, which resulted in the glider not having enough lift to make it to the runway surface.
- [NTSB WPR11LA377](https://openairdocs.org/ntsb/WPR11LA377.md): Robinson Helicopter R22 Beta · Deer Park, WA · Accident · No injuries · Limited investigation · Final report · Aug 8, 2011 · N8332T · Substantial damage
  > The student pilot's failure to maintain control of the helicopter and his delay in relinquishing control to the flight instructor, which resulted in the instructor’s delayed remedial actions and subsequent hard landing.
- [NTSB WPR11CA018](https://openairdocs.org/ntsb/WPR11CA018.md): Deitz Avid Flyer MK4 · Colville, WA · Accident · Minor injuries · Data collection · Final report · Oct 16, 2010 · N169WP · Substantial damage
  > The pilot's failure to compensate for a wind gust and maintain runway alignment during final approach to land, which resulted in an in-flight collision with a tree.
- [NTSB WPR09CA368](https://openairdocs.org/ntsb/WPR09CA368.md): Schweizer SGU 2-22CK · Ephrata, WA · Accident · Minor injuries · Data collection · Final report · Jul 24, 2009 · N3907A · Substantial damage
  > The premature launch signal given by the wing walker.
- [NTSB WPR09LA350](https://openairdocs.org/ntsb/WPR09LA350.md): Bielawa Rotorway E · Sequim, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 2009 · N3213K · Substantial damage
  > The failure (disbonding) of a composite main rotor blade for undetermined reasons, leading to an immediate loss of control in flight during hover.
- [NTSB WPR09CA329](https://openairdocs.org/ntsb/WPR09CA329.md): Nalis Glastar · Arlington, WA · Accident · No injuries · Data collection · Final report · Jul 5, 2009 · N432P · Substantial damage
  > A total loss of engine power due to fuel starvation as a result of the pilot's failure to select the fullest tank prior to takeoff.
- [NTSB WPR09CA283](https://openairdocs.org/ntsb/WPR09CA283.md): Smith Albert F Challenger TWO · Moses Lake, WA · Accident · Minor injuries · Data collection · Final report · Jun 10, 2009 · N7095K · Substantial damage
  > The student pilot's inadequate compensation for the crosswind condition and failure to maintain lateral roll control of the airplane. Also causal was the flight instructor's failure to effectively communicate his instruction to relinquish the flight controls…
- [NTSB WPR09CA232](https://openairdocs.org/ntsb/WPR09CA232.md): Atkins John RAF 2000 G · South Prairie, WA · Accident · Minor injuries · Data collection · Final report · May 9, 2009 · N1435X · Substantial damage
  > The pilot's abrupt maneuver to avoid a collision that resulted in an airspeed reduction and subsequent loss of lift provided by the rotor system. Contributing to the accident was the failure of both pilots to maintain an adequate visual lookout for other…
- [NTSB SEA08CA184](https://openairdocs.org/ntsb/SEA08CA184.md): Wheat Excalibur EX · Moses Lake, WA · Accident · No injuries · Data collection · Final report · Aug 18, 2008 · N2505Q · Substantial damage
  > The right rudder pedal attach rivets sheared due to overload.
- [NTSB SEA08CA177](https://openairdocs.org/ntsb/SEA08CA177.md): Anglin RV-6 · Puyallup, WA · Accident · Minor injuries · Data collection · Final report · Aug 12, 2008 · N14JA · Substantial damage
  > The complete loss of engine power for undetermined reasons. Contributing to the accident were hidden obstructions (tree stumps) in the field of long grass within which the pilot executed his forced landing.
- [NTSB SEA08LA120](https://openairdocs.org/ntsb/SEA08LA120.md): Yakovlev Yak 52 · Vancouver, WA · Accident · 2 fatal · Limited investigation · Final report · May 2, 2008 · N62813 · Substantial damage
  > The pilot's failure to maintain an airspeed sufficient to avoid a stall during a low altitude aerobatic maneuver. Contributing to the accident was the low altitude at which the pilot initiated the maneuver.
- [NTSB SEA07FA195](https://openairdocs.org/ntsb/SEA07FA195.md): Yakovlev YAK-55M · Everett, WA · Accident · 1 fatal · Field investigation · Final report · Jul 14, 2007 · N55NH · Destroyed
  > The pilot's inadequate preflight planning and inspection that led to oil exhaustion and a catastrophic engine failure. Also causal was the pilot's attempted operation of an aircraft with known deficiencies, and the lack of a current airworthiness inspection.…
- [NTSB SEA07LA011](https://openairdocs.org/ntsb/SEA07LA011.md): Sorensen Searey · Marysville, WA · Accident · No injuries · Limited investigation · Final report · Oct 12, 2006 · N9877S · Substantial damage
  > The pilot's failure to identify an unsafe condition (strong tidal currents) prior to a water landing, which resulted in the airplane nosing over when the pilot was unable to maintain aircraft control.
- [NTSB SEA06LA133](https://openairdocs.org/ntsb/SEA06LA133.md): Nanchang China CJ-6 · Brewster, WA · Accident · No injuries · Limited investigation · Final report · Jul 3, 2006 · N8120H · Substantial damage
  > The failure of the engine's three planetary gears for undetermined reasons. A factor contributing to the accident was the tree orchard.
- [NTSB SEA06LA134](https://openairdocs.org/ntsb/SEA06LA134.md): Taylor Royal T · Davenport, WA · Accident · 3 fatal · Limited investigation · Final report · Jul 1, 2006 · N2554 · Destroyed
  > The pilot's failure to maintain aircraft control while maneuvering, resulting in a collision with terrain.
- [NTSB SEA06CA010](https://openairdocs.org/ntsb/SEA06CA010.md): Michael Moneyhan Magnum · Cougar, WA · Accident · Minor injuries · Data collection · Final report · Oct 22, 2005 · N686JM · Substantial damage
  > The pilot's inadequate in-flight decision to land on the uneven terrain, which resulted in the airplane nosing over. Factors contributing to the accident included the uneven terrain and the sunglare condition.
- [NTSB SEA06CA008](https://openairdocs.org/ntsb/SEA06CA008.md): Williams Challenger II · Spokane, WA · Accident · No injuries · Data collection · Final report · Oct 8, 2005 · N8069J · Substantial damage
  > The loss of all engine power while on downwind for undetermined reasons.
- [NTSB SEA05LA118](https://openairdocs.org/ntsb/SEA05LA118.md): Rash Vans RV-6A · Palouse, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 2005 · N330CJ · Destroyed
  > Loss of engine power for undetermined reasons. Rising terrain was a factor.
- [NTSB SEA05CA027](https://openairdocs.org/ntsb/SEA05CA027.md): Breit Zodiac (CH-601-HDS) · Everett, WA · Accident · Minor injuries · Data collection · Final report · Dec 18, 2004 · N826JB · Substantial damage
  > The pilot's failure to maintain aircraft control immediately after takeoff. A factor was the wake turbulence from the preceding airplane.
- [NTSB SEA05LA133](https://openairdocs.org/ntsb/SEA05LA133.md): Aero Vodochody Aero. Works L-39C · Hyak, WA · Accident · 2 fatal · Limited investigation · Final report · Oct 19, 2004 · N39TJ · Destroyed
  > The loss of aircraft control during climb to cruise due to an undetermined flight control malfunction.
- [NTSB SEA04LA129](https://openairdocs.org/ntsb/SEA04LA129.md): Logston Starduster SA100DL · Arlington, WA · Accident · No injuries · Limited investigation · Final report · Jul 11, 2004 · N35RL · 2 aircraft · Substantial damage
  > The pilot's failure to maintain clearance during taxi from another aircraft standing on the runway resulting in a collision. The aircraft standing on the runway was a factor.
- [NTSB SEA04LA121](https://openairdocs.org/ntsb/SEA04LA121.md): Exp Acft Assn Wi Chapter 60 Moni · Rochester, WA · Accident · No injuries · Limited investigation · Final report · Jul 4, 2004 · N87TW · Substantial damage
  > The pilot's inadequate in-flight decision by failing to refuel, resulting in fuel exhaustion and the loss of power during descent. Factors contributing to the accident included the pilot's lack of experience in the aircraft and the tree.
- [NTSB SEA04CA068](https://openairdocs.org/ntsb/SEA04CA068.md): Yakovlev Yak 54 · Friday Harbor, WA · Accident · No injuries · Data collection · Final report · Apr 10, 2004 · N14026 · Substantial damage
  > The pilot's failure to properly align with the runway. Factors include rough/uneven terrain, inadequate preflight planning and diminished forward visibility.
- [NTSB SEA04LA063](https://openairdocs.org/ntsb/SEA04LA063.md): Glasflugel STD Libelle 201B · Oso, WA · Accident · 1 fatal · Limited investigation · Final report · Apr 2, 2004 · N161D · 2 aircraft · Substantial damage
  > The pilot of the Glaser-Dirks (lead glider) failure to maintain clearance from the Glasflugel (trailing glider) resulting in a mid-air collision while maneuvering.
- [NTSB SEA04CA054](https://openairdocs.org/ntsb/SEA04CA054.md): Menefee RAF Vari-Eze · Bremerton, WA · Accident · Minor injuries · Data collection · Final report · Mar 21, 2004 · N200TZ · Substantial damage
  > Failure to maintain airspeed while on final approach resulting in a stall. Factors include a rough running engine for undetermined reasons and rough/uneven terrain.
- [NTSB SEA04LA015](https://openairdocs.org/ntsb/SEA04LA015.md): Schmitt Exec 162F · Prosser, WA · Accident · No injuries · Limited investigation · Final report · Nov 6, 2003 · N6463S · Substantial damage
  > The student pilot's abrupt application of excessive collective and the flight instructor's inadequate supervision of the student. Contributing factors were the ditch and low rotor RPM.
- [NTSB SEA03LA163](https://openairdocs.org/ntsb/SEA03LA163.md): Schulze Lancair 360 · Vancouver, WA · Accident · No injuries · Limited investigation · Final report · Aug 7, 2003 · N360W · Destroyed
  > Loss of engine power for undetermined reasons during the initial climb. Collision with a vehicle during landing was a factor.
- [NTSB SEA03LA080](https://openairdocs.org/ntsb/SEA03LA080.md): Allen SA-300 · Yakima, WA · Accident · No injuries · Limited investigation · Final report · May 9, 2003 · N147DA · Substantial damage
  > Directional control was not maintained during the landing roll. A steering spring disconnected as a result of a tailwheel shimmy was a factor.

Next page: https://openairdocs.org/ntsb.md?engine=99999&state=WA&page=2

## 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" = 'WA' 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 ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=99999&state=WA

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