# 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 30 of 97 · 4,814 cases

## Cases, newest first

- [NTSB SEA97FA201](https://openairdocs.org/ntsb/SEA97FA201.md): Cessna 182C · Bremerton, WA · Accident · 5 fatal · Field investigation · Final report · Sep 1, 1997 · N9015T · Destroyed
  > The pilot's failure to maintain adequate airspeed in a climbing turn at low altitude, resulting in a stall and impact with terrain. A factor was the pilot exceeding the aircraft's maximum takeoff gross weight limitation.
- [NTSB SEA97FA196](https://openairdocs.org/ntsb/SEA97FA196.md): Southern Aero UH-1B · Skykomish, WA · Accident · 1 fatal · Field investigation · Final report · Aug 27, 1997 · N896W · Substantial damage
  > A fatigue fracture in the main rotor mast, which resulted in an in flight separation of the main rotor from the helicopter. Contributing to the accident was insufficient Federal Aviation Administration airworthiness standards and requirements for the aircraft.
- [NTSB SEA97LA193](https://openairdocs.org/ntsb/SEA97LA193.md): Cessna TU206G · Edwall, WA · Accident · No injuries · Limited investigation · Final report · Aug 18, 1997 · N6620Z · Substantial damage
  > A fatigue failure of the engine crankshaft. Factors contributing to the accident were the rolling terrain, and the fence.
- [NTSB SEA97LA192](https://openairdocs.org/ntsb/SEA97LA192.md): Cessna 175 · Lynnwood, WA · Accident · No injuries · Limited investigation · Final report · Aug 17, 1997 · N7533M · Substantial damage
  > The pilot's inadequate preflight planning and preparation, which led to fuel exhaustion and subsequent loss of engine power.
- [NTSB SEA97LA191](https://openairdocs.org/ntsb/SEA97LA191.md): Bell 47G · Wellpinit, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 17, 1997 · N9571 · Substantial damage
  > The pilot's selection of an unsuitable landing site, and his failure to maintain rotor blade clearance from terrain during landing.
- [NTSB SEA97LA189](https://openairdocs.org/ntsb/SEA97LA189.md): Rotz RAF 2000 GTX SE · Olympia, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 1997 · N9155H · Substantial damage
  > The pilot's failure to attain adequate rotor rpm prior to takeoff.
- [NTSB SEA97FA188](https://openairdocs.org/ntsb/SEA97FA188.md): Beech 1900C · Seattle, WA · Accident · Serious injuries · Field investigation · Final report · Aug 14, 1997 · N3172A · Destroyed
  > A stall/mush condition resulting from an aft center of gravity which was inaccurately provided to the pilot-in-command by contractual cargo-loading personnel. Additional causes were overloading of the aircraft's landing gear and fuel leakage resulting in a…
- [NTSB SEA97LA186](https://openairdocs.org/ntsb/SEA97LA186.md): Cessna 172M · Langley, WA · Accident · No injuries · Limited investigation · Final report · Aug 5, 1997 · N73158 · Substantial damage
  > A failed exhaust valve. Factors were tailwind and excessive airspeed during the ensuing forced landing..
- [NTSB SEA97LA182](https://openairdocs.org/ntsb/SEA97LA182.md): Cessna 140 · Vancouver, WA · Accident · 1 fatal · Limited investigation · Final report · Aug 4, 1997 · N2076N · Substantial damage
  > Aircraft control was not maintained. Continued operation with known deficiencies in equipment and movement restrictions to an exhaust valve were factors.
- [NTSB SEA97LA197](https://openairdocs.org/ntsb/SEA97LA197.md): Ercoupe 415-C · Elma, WA · Accident · No injuries · Limited investigation · Final report · Jul 29, 1997 · N3578H · Substantial damage
  > The pilot's inadequate compensation for wind conditions while landing. A factor was the crosswind.
- [NTSB SEA97LA175](https://openairdocs.org/ntsb/SEA97LA175.md): Cessna T210H · Stehekin, WA · Accident · No injuries · Limited investigation · Final report · Jul 22, 1997 · N6922R · Substantial damage
  > The pilot's misreading of the windsock and subsequent downwind landing. Factors in the accident were the sunglare and tailwind.
- [NTSB SEA97LA173](https://openairdocs.org/ntsb/SEA97LA173.md): Cessna 170 · Graham, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 1997 · N4292V · Substantial damage
  > Inadequate aircraft preflight by the pilot-in-command, and water contamination in the fuel resulting in a loss of engine power. A factor was a power transmission line in the forced landing area.
- [NTSB SEA97LA167](https://openairdocs.org/ntsb/SEA97LA167.md): Cessna 140 · Arlington, WA · Accident · No injuries · Limited investigation · Final report · Jul 12, 1997 · N4275N · Substantial damage
  > Failure of the right-main landing gear axle after landing.
- [NTSB SEA97LA166](https://openairdocs.org/ntsb/SEA97LA166.md): Cessna 172I · Naches, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 11, 1997 · N35436 · Substantial damage
  > inadequate preflight by the pilot, and subsequent fuel exhaustion, which led to a forced landing and subsequent nose over of the aircraft. Related factors were: the FBO did not refuel the aircraft as requested, and soft terrain was encountered during the…
- [NTSB SEA97LA156](https://openairdocs.org/ntsb/SEA97LA156.md): Stiritz Eipper MX II · Newport, WA · Accident · No injuries · Limited investigation · Final report · Jun 30, 1997 · N15TJ · Substantial damage
  > The failure of the owner/builder to adequately inspect his homebuilt aircraft, which subsequently led to the failure of the right wing lift cable attach bolt and resulted in the collapse of the right wing during flight.
- [NTSB SEA97LA151](https://openairdocs.org/ntsb/SEA97LA151.md): Cessna 182P · Yakima, WA · Accident · No injuries · Limited investigation · Final report · Jun 25, 1997 · N9932E · Substantial damage
  > The loss of engine power for undetermined reasons. Contributing to the accident was the soft terrain.
- [NTSB SEA97LA150](https://openairdocs.org/ntsb/SEA97LA150.md): Corben Junior ACE · East Wenatchee, WA · Accident · No injuries · Limited investigation · Final report · Jun 20, 1997 · N9017 · Substantial damage
  > The dual student's improper attempt to abort the takeoff and the flight instructor's inadequate supervision of the flight.
- [NTSB SEA97LA143](https://openairdocs.org/ntsb/SEA97LA143.md): Cessna A188 · Richland, WA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1997 · N9766V · Substantial damage
  > the pilot's failure to maintain airspeed. Inadequate in-flight planning and high obstructions that restricted evasive maneuvers were factors.
- [NTSB SEA97LA134](https://openairdocs.org/ntsb/SEA97LA134.md): Cessna 172C · Fall City, WA · Accident · No injuries · Limited investigation · Final report · Jun 11, 1997 · N1319Y · Substantial damage
  > the pilot's selection of unsuitable terrain for landing. The soft, wet terrain was a related factor.
- [NTSB SEA97LA129](https://openairdocs.org/ntsb/SEA97LA129.md): Cessna 210D · Renton, WA · Accident · No injuries · Limited investigation · Final report · Jun 6, 1997 · N3908Y · Substantial damage
  > Landing gear hydraulic system power pack failure.
- [NTSB SEA97LA126](https://openairdocs.org/ntsb/SEA97LA126.md): Garlick UH-1H · Addy, WA · Accident · No injuries · Limited investigation · Final report · Jun 3, 1997 · N85NW · Substantial damage
  > The inflight failure of the K-FLEX engine-to-gear box drive shaft and no suitable site in which to make a forced/emergency landing. A factor was the mountainous/hilly terrain.
- [NTSB SEA97LA118](https://openairdocs.org/ntsb/SEA97LA118.md): Hughes 369D · Moclips, WA · Accident · No injuries · Limited investigation · Final report · May 21, 1997 · N8306F · Substantial damage
  > Inadequate installation of the fuel control by company maintenance personnel and a loose nut on a line. A disconnected Pc line was a factor.
- [NTSB SEA97LA113](https://openairdocs.org/ntsb/SEA97LA113.md): Cessna 207 · Roche Harbor, WA · Accident · No injuries · Limited investigation · Final report · May 18, 1997 · N7405 · Substantial damage
  > The pilot's inadequate remedial action upon encountering a downdraft on final approach. The downdraft was a factor.
- [NTSB SEA97LA112](https://openairdocs.org/ntsb/SEA97LA112.md): Bell 47G-3B · Snohomish, WA · Accident · Minor injuries · Limited investigation · Final report · May 15, 1997 · N8491E · Substantial damage
  > the pilot's encounter with of a loss of tail rotor effectiveness (LTE) situation, and his subsequent inadequate remedial action. Related factors included: wind conditions that were conducive to an unanticipated right yaw event, and the pilot's limited…
- [NTSB SEA97LA111](https://openairdocs.org/ntsb/SEA97LA111.md): Cessna 150M · Freeland, WA · Accident · Minor injuries · Limited investigation · Final report · May 13, 1997 · N7557A · Substantial damage
  > Fuel exhaustion due to the flight instructor's failure to insure there was proper fuel in the aircraft and the flight instructor's misjudgment of his altitude and airspeed while executing a power-off forced landing in a large open field. Factors include: a…
- [NTSB SEA97LA099](https://openairdocs.org/ntsb/SEA97LA099.md): Grumman G-164A · Rosalia, WA · Accident · 1 fatal · Limited investigation · Final report · May 6, 1997 · N7926 · Destroyed
  > The pilot-in-command's failure to maintain clearance with terrain. Factors contributing to the accident were, hilly terrain conditions and impairment due to recent use of marihuana.
- [NTSB CHI97IA122](https://openairdocs.org/ntsb/CHI97IA122.md): Beech 35 · Spokane, WA · Incident · No injuries · Incident investigation · Final report · Apr 29, 1997 · N2839V · No damage
  > the vibration of the fuselage was due to flutter.
- [NTSB SEA97LA095](https://openairdocs.org/ntsb/SEA97LA095.md): Cessna 172N · Pullman, WA · Accident · No injuries · Limited investigation · Final report · Apr 27, 1997 · N73934 · Substantial damage
  > The pilot's failure to maintain clearance from a fuel truck parked near his taxi route. Factors include a dark night and a vehicle parked near the pilot's route of taxi.
- [NTSB SEA97LA092](https://openairdocs.org/ntsb/SEA97LA092.md): Cessna 152 · Ilwaco, WA · Accident · No injuries · Limited investigation · Final report · Apr 26, 1997 · N152TM · Substantial damage
  > The student pilot's failure to land the aircraft at the proper touchdown point. Factors include inadequate preflight planning/preparation by the student pilot, inadequate supervision by the student pilot's flight instructor, rain, fog, strong crosswinds, a…
- [NTSB SEA97LA088](https://openairdocs.org/ntsb/SEA97LA088.md): Rockwell S-2R · Prescott, WA · Accident · Serious injuries · Limited investigation · Final report · Apr 18, 1997 · N4978X · Substantial damage
  > failure of the pilot to maintain terrain clearance from uneven/hilly terrain.
- [NTSB SEA97LA086](https://openairdocs.org/ntsb/SEA97LA086.md): Piper PA-24-260 · Sequim, WA · Accident · Serious injuries · Limited investigation · Final report · Apr 14, 1997 · N8645P · Substantial damage
  > The pilot-in-command's improper fuel management, which resulted in fuel starvation and loss of engine power. A factor was trees in the forced landing area.
- [NTSB SEA97LA083](https://openairdocs.org/ntsb/SEA97LA083.md): Cessna 150D · Arlington, WA · Accident · Minor injuries · Limited investigation · Final report · Apr 6, 1997 · N4100U · 2 aircraft · Destroyed
  > The failure of the commercial pilot to perform an adequate visual lookout while on final approach for landing on the runway, and the failure of the student pilot of the other airplane to perform an adequate visual lookout prior to taking off from the same…
- [NTSB SEA97LA102](https://openairdocs.org/ntsb/SEA97LA102.md): Boeing E75 · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Mar 30, 1997 · N5010V · Substantial damage
  > The pilot-in-command's inadequate application of crosswind controls during landing rollout. Factors were gusty crosswinds.
- [NTSB SEA97LA080](https://openairdocs.org/ntsb/SEA97LA080.md): Cessna 172 · Auburn, WA · Accident · No injuries · Limited investigation · Final report · Mar 30, 1997 · N5115K · Substantial damage
  > the pilots' inadequate evaluation of the strong winds, when they attempted to turn to taxi with a very strong tailwind. Factors relating to the accident included the high and unfavorable winds.
- [NTSB SEA97LA079](https://openairdocs.org/ntsb/SEA97LA079.md): Rose VP-1 · Gardiner, WA · Accident · 1 fatal · Limited investigation · Final report · Mar 30, 1997 · N89PR · Destroyed
  > The pilot-in-command's failure to maintain control of the aircraft. Factors contributing to the accident were gusty and high winds.
- [NTSB SEA97LA077](https://openairdocs.org/ntsb/SEA97LA077.md): de Havilland DHC-8 · Wenatchee, WA · Accident · No injuries · Limited investigation · Final report · Mar 26, 1997 · N826PH · Substantial damage
  > failure of the ground marshaller to marshal the airplane into a correct parking place on the ramp, her failure to verify clearance between the right wing of the airplane and the ground de-ice cart, and failure of the flight crew to ensure clearance of the…
- [NTSB SEA97LA078](https://openairdocs.org/ntsb/SEA97LA078.md): Cessna 177B · Everett, WA · Accident · No injuries · Limited investigation · Final report · Mar 23, 1997 · N35034 · Substantial damage
  > failure of the pilot to maintain directional control of the airplane after landing. Factors relating to the accident include: a blown (failed) nose tire, and soft terrain beside the runway.
- [NTSB SEA97LA073](https://openairdocs.org/ntsb/SEA97LA073.md): Luscombe 8A · Arlington, WA · Accident · No injuries · Limited investigation · Final report · Mar 22, 1997 · N1184K · Substantial damage
  > Landing long (improper touchdown point) and collapse of the main landing gear during an intentional swerve or groundloop. Factors include excessive airspeed on approach.
- [NTSB SEA97LA066](https://openairdocs.org/ntsb/SEA97LA066.md): Cessna 152 · College Place, WA · Accident · No injuries · Limited investigation · Final report · Feb 26, 1997 · N48965 · Substantial damage
  > The certified flight instructor's improper in-flight decision to continue the landing attempt and not perform a go-around, her failure to attain the proper touchdown point, and her failure to apply proper remedial action. A contributing factor was the…
- [NTSB SEA97LA068](https://openairdocs.org/ntsb/SEA97LA068.md): Hemingway Varieze · Arlington, WA · Accident · Minor injuries · Limited investigation · Final report · Feb 24, 1997 · N36P · Substantial damage
  > The pilot's failure to maintain control of the aircraft. Factors contributing to the accident were the pilot's lack of total experience in the type of aircraft and the gusty wind conditions.
- [NTSB SEA97LA053](https://openairdocs.org/ntsb/SEA97LA053.md): Cessna 170B · Toledo, WA · Accident · No injuries · Limited investigation · Final report · Jan 26, 1997 · N4590C · Substantial damage
  > The pilot's excessive application of the brakes on a tailwheel equipped aircraft. Factors include the pilot's inadequate compensation for wind conditions, and a crosswind blowing at the time of the landing.
- [NTSB SEA97LA052](https://openairdocs.org/ntsb/SEA97LA052.md): Piper PA-28RT-201 · Chehalis, WA · Accident · Serious injuries · Limited investigation · Final report · Jan 26, 1997 · N344LC · Destroyed
  > The failure of the first pilot to conduct an adequate preflight inspection, and his failure to properly manage the aircraft fuel supply. This led to fuel starvation and a subsequent loss of engine power. Factors contributing to the accident are the false…
- [NTSB SEA97IA051](https://openairdocs.org/ntsb/SEA97IA051.md): Beech 1900D · Seattle, WA · Incident · No injuries · Incident investigation · Final report · Jan 21, 1997 · N75ZV · Minor damage
  > an axial shift of the aft flap track bearing's outer roller, resulting in erosion and failure of the flap track bracket/bearing assembly. A factor relating to the incident was: inadequate inspection of the flap roller bearing/bracket assemblies.
- [NTSB SEA97LA050](https://openairdocs.org/ntsb/SEA97LA050.md): Cessna 180J · Lopez, WA · Accident · Minor injuries · Limited investigation · Final report · Jan 20, 1997 · N42376 · Substantial damage
  > The pilot's improper decision to initiate flight into marginal VFR conditions at night which led to inadvertent flight into instrument meteorological conditions, and his failure to maintain adequate clearance from terrain. Factors contributing to the accident…
- [NTSB SEA97LA045](https://openairdocs.org/ntsb/SEA97LA045.md): Stinson 108-2 · Richland, WA · Accident · No injuries · Limited investigation · Final report · Jan 4, 1997 · N9467K · Substantial damage
  > failure of the pilot to see-and-avoid an ultralight aircraft that was taxiing and had stopped in front of him.
- [NTSB SEA97IA040](https://openairdocs.org/ntsb/SEA97IA040.md): McDonnell Douglas MD-80 · Seattle, WA · Incident · No injuries · Incident investigation · Final report · Dec 21, 1996 · N941AS · Minor damage
  > The failure of the left wing walker to verify the clearance between the left wing and the fuel truck during taxi, and his delay in signaling the lead marshaller to alert the pilot to stop the aircraft prior to impact. Factors contributing to the incident…
- [NTSB SEA97LA039](https://openairdocs.org/ntsb/SEA97LA039.md): Stinson 108-2 · Friday Harbor, WA · Accident · No injuries · Limited investigation · Final report · Dec 20, 1996 · N233C · Destroyed
  > failure of the engine (powerplant) for undetermined reason(s). A factor relating to the accident include: being over water at the time of power failure.
- [NTSB SEA97LA038](https://openairdocs.org/ntsb/SEA97LA038.md): Beech BE-77 · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Dec 18, 1996 · N6043M · 2 aircraft · Substantial damage
  > The failure of the pilots of both airplanes to see and avoid each other. A factor contributing to the accident was the Cessna's pilot diverted attention.
- [NTSB SEA97LA054](https://openairdocs.org/ntsb/SEA97LA054.md): Cessna 182M · Vancouver, WA · Accident · No injuries · Limited investigation · Final report · Dec 15, 1996 · N42694 · Substantial damage
  > The pilot-in-command's touchdown with an excessive rate of descent. Factors included gusty crossiwnds.
- [NTSB SEA97LA030](https://openairdocs.org/ntsb/SEA97LA030.md): Cessna 421B · Olympia, WA · Accident · No injuries · Limited investigation · Final report · Nov 19, 1996 · N8005Q · Substantial damage
  > inoperative deicing equipment, due to multiple wing boot holes and malfunctioning control/shuttle valves; subsequent build-up of airframe (wing) ice; and failure of the pilot to maintain adequate airspeed during the flare for landing. Factors relating to the…

Next page: https://openairdocs.org/ntsb.md?state=WA&page=31

## 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=30&state=WA

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