# NTSB investigations, 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 31 of 97 · 4,814 cases

## Cases, newest first

- [NTSB SEA97LA032](https://openairdocs.org/ntsb/SEA97LA032.md): Hughes 369D · Forks, WA · Accident · Serious injuries · Limited investigation · Final report · Nov 16, 1996 · N5225C · Substantial damage
  > fuel contamination, which resulted in loss of engine power. Factors relating to the accident included: improper servicing of the helicopter, and a lack of suitable terrain for an emergency landing due to the proximity of trees.
- [NTSB SEA97LA025](https://openairdocs.org/ntsb/SEA97LA025.md): Garlick TH-1L · Leavenworth, WA · Accident · 1 fatal · Limited investigation · Final report · Nov 5, 1996 · N465JR · Destroyed
  > Fatigue failure of the vertical stabilizer spar cap and subsequent loss of the rotorcraft's vertical stabilizer. Factors include inadequate inspection or trouble-shooting of the aircraft tail cone and vertical stabilizer at and after the time sheet-metal…
- [NTSB SEA97LA010](https://openairdocs.org/ntsb/SEA97LA010.md): Piper PA-36-300 · Prosser, WA · Accident · 1 fatal · Limited investigation · Final report · Oct 10, 1996 · N2331Y · Substantial damage
  > failure of the pilot to maintain clearance from the terrain, while en route to an apple orchard that he intended to spray. A factor relating to the accident was: the turbulent wind condition over the hills.
- [NTSB SEA97FA006](https://openairdocs.org/ntsb/SEA97FA006.md): Piper PA-34-200T · Cle Elum, WA · Accident · 1 fatal · Field investigation · Final report · Oct 8, 1996 · N666HL · Substantial damage
  > The pilot's physical impairment of judgment and performance, his decision to fly while impaired, and his subsequent failure to maintain control of the aircraft which led to the aircraft's design stress limits being exceeded and inflight separation of the…
- [NTSB SEA97FA005](https://openairdocs.org/ntsb/SEA97FA005.md): Cessna T210M · Everett, WA · Accident · 1 fatal · Field investigation · Final report · Oct 8, 1996 · N761TQ · Destroyed
  > The pilot's impairment of judgment and performance due to the recent excessive use of potent prescription drugs, the pilot's descent below the published decision height, and the pilot's failure to execute a missed approach. Factors contributing to the…
- [NTSB SEA97LA004](https://openairdocs.org/ntsb/SEA97LA004.md): Crouch Avid Mark IV · Stanwood, WA · Accident · No injuries · Limited investigation · Final report · Oct 6, 1996 · N518DC · Substantial damage
  > failure of the pilot to perform an adequate preflight inspection, which led to fuel exhaustion and subsequent loss of engine power. A factor relating to the accident was: the pilot's failure to attain the proper touchdown point on suitable terrain during the…
- [NTSB SEA97FA003](https://openairdocs.org/ntsb/SEA97FA003.md): Enstrom F-28C · Spokane, WA · Accident · No injuries · Field investigation · Final report · Oct 5, 1996 · N574H · Substantial damage
  > a loss of engine power for undetermined reasons.
- [NTSB SEA96LA220](https://openairdocs.org/ntsb/SEA96LA220.md): Ralph Taylor Royal T · Kent, WA · Accident · No injuries · Limited investigation · Final report · Sep 25, 1996 · N2554 · Substantial damage
  > in-flight collision with an unknown object.
- [NTSB SEA96LA215](https://openairdocs.org/ntsb/SEA96LA215.md): Bellanca 7ECA · Arlington, WA · Accident · No injuries · Limited investigation · Final report · Sep 14, 1996 · N8809 · 2 aircraft · Substantial damage
  > inadequate visual lookout by the pilot of the Piper J3, and failure of the flight instructor in the Bellance to ensure that clearance was maintained from the other moving aircraft. Factors relating to the accident were: the inherent visual restrictions…
- [NTSB SEA96FA214](https://openairdocs.org/ntsb/SEA96FA214.md): Mudry CAP 10B · Fairchild Afb, WA · Accident · 1 fatal · Field investigation · Final report · Sep 14, 1996 · N25AK · Destroyed
  > loss of control due to a jammed aileron pushpull tube, due to improper installation/routing of electrical wire bundles through the right aileron bellcrank mechanism by unknown person(s).
- [NTSB SEA96FA201](https://openairdocs.org/ntsb/SEA96FA201.md): Beech D50 · Seattle, WA · Accident · 1 fatal · Field investigation · Final report · Aug 24, 1996 · N567SF · Substantial damage
  > failure of the pilot to follow proper emergency procedures (properly configure the airplane and feather the appropriate propeller) after loosing power in one engine, which resulted in his inability to maintain altitude until reaching an airport. Factors…
- [NTSB SEA96LA200](https://openairdocs.org/ntsb/SEA96LA200.md): Grumman-Schweizer G-164B · Waitsburg, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 22, 1996 · N7501Q · Substantial damage
  > the pilot's inadequate compensation for wind conditions and failure to maintain control of the airplane after encountering a whirlwind during the landing.
- [NTSB SEA96LA196](https://openairdocs.org/ntsb/SEA96LA196.md): Westcott Glasair I-FT · Puyallup, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 1996 · N289W · Substantial damage
  > failure of the air inlet screen, and subsequent ingestion of the foam air filter. An inadequate maintenance modification by the amateur builder and no suitable landing area were related factors.
- [NTSB SEA96LA208](https://openairdocs.org/ntsb/SEA96LA208.md): Cessna 150M · Paterson, WA · Accident · No injuries · Limited investigation · Final report · Aug 15, 1996 · N3882V · Substantial damage
  > failure of the student pilot to maintain directional control of the airplane during a landing, which resulted in an uncontrolled ground loop/swerve. Factors relating to the accident were: the gusty crosswind condition, and soft terrain beside the runway.
- [NTSB SEA96LA189](https://openairdocs.org/ntsb/SEA96LA189.md): Piper PA-18 · Ephrata, WA · Accident · No injuries · Limited investigation · Final report · Aug 13, 1996 · N8109Y · Substantial damage
  > failure of the pilot to maintain proper alignment with the landing area (driveway) during the landing. Factors relating to the accident were: the selection of an unsuitable area for landing, the reported turbulence during landing, and an encounter with a rock…
- [NTSB SEA96FA186](https://openairdocs.org/ntsb/SEA96FA186.md): Let L-13 · Shelton, WA · Accident · 1 fatal · Field investigation · Final report · Aug 11, 1996 · N90865 · Substantial damage
  > failure of the operator to provide its pilots with information essential for an accurate determination of the glider's weight and balance, the resultant operation of the glider with a center-or-gravity that exceeded the aft limit, and the pilot's inadvertent…
- [NTSB SEA96LA183](https://openairdocs.org/ntsb/SEA96LA183.md): Cessna 172N · Enumclaw, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 1996 · N738PM · Substantial damage
  > failure of the engine magneto drive, which resulted in a loss of engine power. The lack of suitable terrain for a forced landing was a related factor.
- [NTSB SEA96LA177](https://openairdocs.org/ntsb/SEA96LA177.md): Cessna U206F · Crane Island, WA · Accident · No injuries · Limited investigation · Final report · Aug 5, 1996 · N8313Q · Substantial damage
  > the pilot's failure to correctly judge the surface winds in the vicinity of the runway. Factors relating to the accident were: a tailwind during landing, a short runway with a wet surface, and an embankment/drop-off at the end of the airstrip.
- [NTSB SEA96FA175](https://openairdocs.org/ntsb/SEA96FA175.md): Mooney M20E · Purdy, WA · Accident · 2 fatal · Field investigation · Final report · Aug 2, 1996 · N9360M · Destroyed
  > The noninstrument-rated pilot's continuation of VFR flight into instrument meteorological conditions which led to pilot spatial disorientation and loss of control of the aircraft. Factors were: pilot self-induced pressure, night conditions, low ceilings, and…
- [NTSB SEA96LA181](https://openairdocs.org/ntsb/SEA96LA181.md): Beech 35 · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1996 · N2839V · Substantial damage
  > failure (cracking) of the aft fuselage bulkhead for undetermined reason(s).
- [NTSB SEA96LA174](https://openairdocs.org/ntsb/SEA96LA174.md): Cessna 182B · Metaline Falls, WA · Accident · No injuries · Limited investigation · Final report · Jul 29, 1996 · N2793G · Substantial damage
  > the pilot's improper flare and improper recovery from a bounced landing. The inadvertent porpoise was a related factor.
- [NTSB SEA96FA171](https://openairdocs.org/ntsb/SEA96FA171.md): Cessna 340A · Richland, WA · Accident · 2 fatal · Field investigation · Final report · Jul 27, 1996 · N341TL · Destroyed
  > The pilot-in-command's allowing the aircraft's airspeed to decrease below the single-engine minimum control speed (Vmc) resulting in a stall/spin condition. Factors contributing to the accident were the pilot-in-command's allowing the left engine to be shut…
- [NTSB SEA96LA166](https://openairdocs.org/ntsb/SEA96LA166.md): Cessna 172G · Kettle Falls, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 1996 · N4478L · Destroyed
  > the pilot's inadequate preflight planning. Factors relating to the accident were: high ambient temperatures; departing from a short, grass runway; and tall trees off the departure end of the airstrip.
- [NTSB SEA96LA163](https://openairdocs.org/ntsb/SEA96LA163.md): Cessna 152 · Stehekin, WA · Accident · Serious injuries · Limited investigation · Final report · Jul 23, 1996 · N49794 · Substantial damage
  > the pilot's improper planning/decision, and his failure to ensure that the airplane would remain clear of trees during the takeoff. Factors relating to the accident were: high density altitude, and the proximity of trees to the runway.
- [NTSB SEA96LA161](https://openairdocs.org/ntsb/SEA96LA161.md): Cessna T210N · Sunnyside, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 22, 1996 · N6439N · Substantial damage
  > inadequate preflight by the pilot, and subsequent fuel exhaustion. Factors relating to the accident were: darkness, and high vegetation (brush and small trees) in the emergency landing area.
- [NTSB SEA96LA159](https://openairdocs.org/ntsb/SEA96LA159.md): Cessna A188B · Pullman, WA · Accident · Serious injuries · Limited investigation · Final report · Jul 16, 1996 · N9336R · Substantial damage
  > failure of the pilot to maintain terrain clearance during a swath run. Factors relating to the accident were: unfavorable (variable) wind conditions, low airspeed, and uneven terrain.
- [NTSB SEA96LA158](https://openairdocs.org/ntsb/SEA96LA158.md): Cessna 170B · Arlington, WA · Accident · No injuries · Limited investigation · Final report · Jul 13, 1996 · N170EC · Substantial damage
  > the pilot's failure to maintain directional control during landing, which resulted in an inadvertent ground swerve. The crosswind and wet runway were related factors.
- [NTSB SEA96LA150](https://openairdocs.org/ntsb/SEA96LA150.md): Cessna 150 · Puyallup, WA · Accident · No injuries · Limited investigation · Final report · Jul 8, 1996 · N8310J · Substantial damage
  > improper flare by the pilot during a touch-and-go landing.
- [NTSB SEA96LA135](https://openairdocs.org/ntsb/SEA96LA135.md): Aeronca 7AC · Vancouver, WA · Accident · No injuries · Limited investigation · Final report · Jun 23, 1996 · N81966 · Substantial damage
  > failure of the pilot to maintain directional control of the airplane during take-off, which resulted in an inadvertent ground swerve and subsequent dragging of the right wing. The pilot's lack of experience in the make/model of aircraft was a related factor.
- [NTSB SEA96LA160](https://openairdocs.org/ntsb/SEA96LA160.md): Cessna 182A · Toledo, WA · Accident · No injuries · Limited investigation · Final report · Jun 22, 1996 · N9975B · Substantial damage
  > loss of engine power for undetermined reason(s). Factors relating to the accident were: the pilot's need to maneuvering to avoid obstructions near the approach end of the runway, and a ditch in the emergency landing area.
- [NTSB SEA96FA133](https://openairdocs.org/ntsb/SEA96FA133.md): Bellanca 8KCAB · Pomeroy, WA · Accident · 1 fatal · Field investigation · Final report · Jun 21, 1996 · N57514 · Destroyed
  > The pilot's failure to maintain adequate clearance with the surrounding terrain while maneuvering to land. A factor was the rising terrain conditions.
- [NTSB SEA96FA130](https://openairdocs.org/ntsb/SEA96FA130.md): Hughes 269C · Eldon, WA · Accident · 1 fatal · Field investigation · Final report · Jun 19, 1996 · N7400F · Destroyed
  > fatigue failure of the connecting rod cap, which resulted in loss of engine power and ditching at sea.
- [NTSB SEA96LA124](https://openairdocs.org/ntsb/SEA96LA124.md): Cessna 177B · Gardiner, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 1996 · N1159C · Substantial damage
  > the pilot's inadequate compensation for wind conditions and failure to maintain the proper altitude/clearance from obstruction(s), while on final approach. Factors relating to the accident were: the downdraft, and the obstruction (tree).
- [NTSB SEA96LA123](https://openairdocs.org/ntsb/SEA96LA123.md): Cessna 182 · Roche Harbor, WA · Accident · No injuries · Limited investigation · Final report · Jun 16, 1996 · N5686B · Destroyed
  > the pilot's inadequate compensation for wind conditions and failure to attain a proper touchdown point for landing. Factors relating to the accident were: downdraft conditions and soft/uneven terrain short of the runway.
- [NTSB SEA96LA128](https://openairdocs.org/ntsb/SEA96LA128.md): Bailey Antares MA30 · Woodland, WA · Accident · 1 fatal · Limited investigation · Final report · Jun 10, 1996 · UNREG · Substantial damage
  > failure of the uncertificated pilot to maintain adequate airspeed during the initial climb after takeoff, which resulted in a stall and collision with the terrain. The pilot's abrupt pull-up was a related factor.
- [NTSB SEA96LA117](https://openairdocs.org/ntsb/SEA96LA117.md): Head Pitts S-1C · Everett, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 9, 1996 · N7BH · Substantial damage
  > the pilot's inadequate fuel management, which resulted in fuel starvation. The aircraft's lack of a fuel quantity gauge and trees in the forced landing area were related factors.
- [NTSB SEA96LA112](https://openairdocs.org/ntsb/SEA96LA112.md): Grumman-Schweizer G-164A · Prescott, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 6, 1996 · N9793 · Substantial damage
  > failure of the pilot to visually clear his flight path, after allowing his attention to be diverted, and his resultant failure to maintain sufficient altitude/clearance from a hill. The hilly terrain was a related factor.
- [NTSB SEA96LA109](https://openairdocs.org/ntsb/SEA96LA109.md): Bellanca 8GCBC · Richland, WA · Accident · No injuries · Limited investigation · Final report · Jun 2, 1996 · N88401 · Substantial damage
  > the pilot's failure to perform a go-around and his subsequent excessive use of the aircraft brakes. The short airstrip length and the pilot's excessive airspeed for the approach were related factors.
- [NTSB SEA96LA108](https://openairdocs.org/ntsb/SEA96LA108.md): Cessna 120 · Rimrock, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 1, 1996 · N2965N · Substantial damage
  > the pilot's delay in aborting the takeoff, and his excessive use of brakes while decelerating the airplane during the aborted takeoff. Factors relating to the accident were: the pilot's loading the airplane above its maximum gross weight, high density…
- [NTSB SEA96LA107](https://openairdocs.org/ntsb/SEA96LA107.md): Piper PA-20 · Pasco, WA · Accident · No injuries · Limited investigation · Final report · Jun 1, 1996 · N1645A · Substantial damage
  > the pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in an inadvertent ground swerve and collapse of the left main gear.
- [NTSB SEA96LA120](https://openairdocs.org/ntsb/SEA96LA120.md): Piper PA-28-161 · Seattle, WA · Accident · No injuries · Limited investigation · Final report · May 31, 1996 · N47852 · Destroyed
  > An intentional plan or decision by the pilot to ditch the airplane in Puget Sound.
- [NTSB SEA96LA105](https://openairdocs.org/ntsb/SEA96LA105.md): Cessna 140 · Puyallup, WA · Accident · Minor injuries · Limited investigation · Final report · May 31, 1996 · N72344 · Substantial damage
  > the pilot's improper recovery from a bounced landing, and failure to maintain runway alignment during a go-around. The pilot's improper flare for landing was a related factor.
- [NTSB SEA96LA100](https://openairdocs.org/ntsb/SEA96LA100.md): Hiller UH-12 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · May 27, 1996 · N174HA · Substantial damage
  > the pilot's inadequate preflight/planning, and his failure to refuel the helicopter with sufficient fuel before flight, which resulted in fuel exhaustion and a subsequent forced landing. A factor relating to the accident was: an inaccurate fuel quantity…
- [NTSB SEA96LA090](https://openairdocs.org/ntsb/SEA96LA090.md): Miller MA-5 Charger · Kennewick, WA · Accident · Serious injuries · Limited investigation · Final report · May 5, 1996 · N36CM · Substantial damage
  > failure of the pilot to maintain adequate airspeed, during the initial climb after takeoff, which resulted in an inadvertent stall and collision with the terrain. Factors relating to the accident were: the pilot's lack of total and recent flight experience.
- [NTSB SEA96LA085](https://openairdocs.org/ntsb/SEA96LA085.md): Aero Commander 200D · Covington, WA · Accident · No injuries · Limited investigation · Final report · Apr 28, 1996 · N2975T · Substantial damage
  > fuel starvation, due to the pilot's improper fuel management. The uneven terrain in the forced landing area was a related factor.
- [NTSB SEA96LA080](https://openairdocs.org/ntsb/SEA96LA080.md): Cessna 150 · Spiden Island, WA · Accident · No injuries · Limited investigation · Final report · Apr 13, 1996 · N171RJ · Substantial damage
  > the pilot's selection of an unsuitable airstrip for the landing and subsequent takeoff, and his delay in aborting the takeoff, which resulted in an overrun and collision with an embankment and trees. Factors relating to the accident were: the short, wet,…
- [NTSB SEA96LA077](https://openairdocs.org/ntsb/SEA96LA077.md): Cessna 172P · Friday Harbor, WA · Accident · No injuries · Limited investigation · Final report · Apr 4, 1996 · N51380 · Substantial damage
  > the pilot's misjudgment of the aircraft's altitude above the runway and failure to flare for landing. Darkness (bright night) was a related factor.
- [NTSB SEA96FA076](https://openairdocs.org/ntsb/SEA96FA076.md): Bell UH-1H · Rainier, WA · Accident · No injuries · Field investigation · Final report · Apr 4, 1996 · N6166R · Substantial damage
  > failure of the forward power shaft (number 21) bearing. A factor relating to the accident was: the lack of suitable, unobstructed terrain for an emergency landing.
- [NTSB SEA96LA075](https://openairdocs.org/ntsb/SEA96LA075.md): Ryan Navion · Kent, WA · Accident · No injuries · Limited investigation · Final report · Mar 28, 1996 · N4826K · Substantial damage
  > the pilot's attempted operation with known deficiencies in the equipment, and a loose fuel system fitting. The pilot's failure to maintain maintenance service on the airplane was a factor.
- [NTSB SEA96LA072](https://openairdocs.org/ntsb/SEA96LA072.md): Piper PA-16 · Lynnwood, WA · Accident · Serious injuries · Limited investigation · Final report · Mar 26, 1996 · N5638H · Substantial damage
  > a loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for a forced landing.

Next page: https://openairdocs.org/ntsb.md?state=WA&page=32

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

This list as a web page: https://openairdocs.org/ntsb?page=31&state=WA

---
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.