# 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 27 of 97 · 4,814 cases

## Cases, newest first

- [NTSB SEA00LA027](https://openairdocs.org/ntsb/SEA00LA027.md): Beech B-19 · Grand Coulee, WA · Accident · Serious injuries · Limited investigation · Final report · Dec 2, 1999 · N4617M · Destroyed
  > The pilot's failure to maintain clearance from power transmission lines. Factors include dark night conditions.
- [NTSB SEA00LA026](https://openairdocs.org/ntsb/SEA00LA026.md): Rockwell NA-265-65 · Seattle, WA · Accident · No injuries · Limited investigation · Final report · Nov 30, 1999 · N920DY · 2 aircraft · Substantial damage
  > Inadequate visual lookout and clearance was not maintained. Diverted attention, dark night conditions and rain were factors.
- [NTSB SEA00LA024](https://openairdocs.org/ntsb/SEA00LA024.md): Piper PA-12 · Goldendale, WA · Accident · No injuries · Limited investigation · Final report · Nov 28, 1999 · N7243V · Substantial damage
  > The pilot's failure to maintain directional control. A factor was a rock just off the edge of the runway surface.
- [NTSB SEA00FA023](https://openairdocs.org/ntsb/SEA00FA023.md): de Havilland DHC-2 MK. I · Washougal, WA · Accident · 4 fatal · Field investigation · Final report · Nov 27, 1999 · N666XT · Substantial damage
  > The pilot's failure to ensure attainment of adequate airspeed prior to initiating a steep turn at low altitude, resulting in an accelerated stall. A factor contributing to the occurrence of the accident was the aircraft's low altitude. Factors contributing to…
- [NTSB SEA00FA021](https://openairdocs.org/ntsb/SEA00FA021.md): Bell 206L-3 · Seattle, WA · Accident · Minor injuries · Field investigation · Final report · Nov 17, 1999 · N206AC · 2 aircraft · Substantial damage
  > Adequate separation and lookout not maintained by the pilots of both aircraft.
- [NTSB SEA00LA011](https://openairdocs.org/ntsb/SEA00LA011.md): Beech A36TC · Pasco, WA · Accident · No injuries · Limited investigation · Final report · Oct 29, 1999 · N3822K · Substantial damage
  > The pilot's failure to extend the landing gear. Factors include a blocked view of the landing gear light indicating system.
- [NTSB SEA00LA016](https://openairdocs.org/ntsb/SEA00LA016.md): Aero Commander 680 · Bremerton, WA · Accident · No injuries · Limited investigation · Final report · Oct 24, 1999 · N1231 · Substantial damage
  > Loss of directional control by the student pilot during landing. Factors include inadequate remedial action by the flight instructor, and an airport sign that was struck by the airplane, collapsing the left main landing gear.
- [NTSB SEA00IA007](https://openairdocs.org/ntsb/SEA00IA007.md): Cessna 172P · Wenatchee, WA · Incident · No injuries · Incident investigation · Final report · Oct 23, 1999 · N54844 · 2 aircraft · Minor damage
  > The failure of the pilots in both aircraft to maintain an adequate visual lookout. Haze was a factor.
- [NTSB SEA00FA001](https://openairdocs.org/ntsb/SEA00FA001.md): de Havilland DHC-2 Mark 1 · Port Blakely, WA · Accident · Minor injuries · Field investigation · Final report · Oct 1, 1999 · N9766Z · Substantial damage
  > The pilot-in-command's failure to maintain adequate clearance from trees/terrain. Contributing factors were rising terrain and trees.
- [NTSB SEA99LA174](https://openairdocs.org/ntsb/SEA99LA174.md): Piper PA-28-180 · Vaughn, WA · Accident · No injuries · Limited investigation · Final report · Sep 26, 1999 · N9395J · Substantial damage
  > The separation of a propeller blade tip due to fatigue, and the improper maintenance procedure.
- [NTSB SEA99LA173](https://openairdocs.org/ntsb/SEA99LA173.md): Cessna 150M · Camas, WA · Accident · No injuries · Limited investigation · Final report · Sep 22, 1999 · N704XA · Substantial damage
  > A misjudged approach and inadequate airspeed. Sunglare, a delayed decision to go-around, and not maintaining clearance from a fence were factors.
- [NTSB SEA99LA171](https://openairdocs.org/ntsb/SEA99LA171.md): Garlick UH-1H · Usk, WA · Accident · No injuries · Limited investigation · Final report · Sep 21, 1999 · N32800 · Substantial damage
  > Fatigue failure of the 90-degree gearbox attachment studs, resulting in separation of the tailrotor and 90-degree gearbox from the vertical fin.
- [NTSB SEA99LA165](https://openairdocs.org/ntsb/SEA99LA165.md): Piper PA-28-180 · Eatonville, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 17, 1999 · N7832N · Substantial damage
  > Inadequate inflight planning/preparation and terrain clearance not maintained. Mountainous terrain, cloudy conditions and delayed remedial action are factors
- [NTSB SEA99LA163](https://openairdocs.org/ntsb/SEA99LA163.md): Stinson V77 · Tacoma, WA · Accident · No injuries · Limited investigation · Final report · Sep 11, 1999 · N69386 · Substantial damage
  > The pilot-in-command's inadvertent use of heavier than normal braking during the landing roll. A contributing factor was the gusty wind conditions.
- [NTSB SEA99LA160](https://openairdocs.org/ntsb/SEA99LA160.md): Cessna 172M · Tahola, WA · Accident · No injuries · Limited investigation · Final report · Sep 11, 1999 · N8995V · Substantial damage
  > The pilot's inadequate directional control and his failure to maintain clearance from trees along the side of the landing area. Factors include a landing area surrounded by tall trees.
- [NTSB SEA99LA158](https://openairdocs.org/ntsb/SEA99LA158.md): Cessna 170B · Auburn, WA · Accident · No injuries · Limited investigation · Final report · Sep 10, 1999 · N3476D · Substantial damage
  > Loss of directional control due to deficient brakes and tailwheel. Factors include leaking brake cylinder, loose tailwheel casting, and obstructions (VASI lights) in the path of the airplane as it left the runway.
- [NTSB SEA99LA151](https://openairdocs.org/ntsb/SEA99LA151.md): Rotordyne 200 · Kent, WA · Accident · 1 fatal · Limited investigation · Final report · Aug 31, 1999 · N85Z · Destroyed
  > The owner/builder's failure to properly torque the rotor blade retaining bolts.
- [NTSB SEA99LA149](https://openairdocs.org/ntsb/SEA99LA149.md): Bell 47G-2 · Benton City, WA · Accident · 1 fatal · Limited investigation · Final report · Aug 26, 1999 · N11VH · Destroyed
  > A loss of power for undetermined reasons and the failure of the pilot to maintain adequate rotor RPM following the power loss. Contributing factors were the pilot's lack of certification and total experience.
- [NTSB SEA99IA148](https://openairdocs.org/ntsb/SEA99IA148.md): Embraer ERJ-135 · Moses Lake, WA · Incident · No injuries · Incident investigation · Final report · Aug 24, 1999 · PTZJA · Minor damage
  > Minimum aircraft control exceeded during takeoff test flight, which resulted in dragging a wing on the runway surface.
- [NTSB SEA99FA146](https://openairdocs.org/ntsb/SEA99FA146.md): Republic RC-3 · Chimacum, WA · Accident · 2 fatal · Field investigation · Final report · Aug 23, 1999 · N6070K · Destroyed
  > The inadequate visual lookout by both the pilot-in-command and second pilot, and the pilot-in-command's failure to maintain sufficient flying speed to prevent a stall condition. Contributing factors were the transmission lines, gusty wind conditions, and the…
- [NTSB SEA99FA144](https://openairdocs.org/ntsb/SEA99FA144.md): Beech F33A · White Swan, WA · Accident · 1 fatal · Field investigation · Final report · Aug 19, 1999 · N2291L · Substantial damage
  > Inadequate preflight planning/preparation and low airspeed. A dirt embankment, soft runway, and an excessive takeoff weight were factors.
- [NTSB SEA99LA142](https://openairdocs.org/ntsb/SEA99LA142.md): Cessna 152 · Kennewick, WA · Accident · No injuries · Limited investigation · Final report · Aug 17, 1999 · N6148Q · Substantial damage
  > The student pilot's inadequate compensation for gusty wind conditions. A contributing factor was gusty winds.
- [NTSB SEA99LA143](https://openairdocs.org/ntsb/SEA99LA143.md): Cessna 210B · Port Angeles, WA · Accident · No injuries · Limited investigation · Final report · Aug 14, 1999 · N9588X · Substantial damage
  > The failure of maintenance personnel to detect cracked main landing gear saddles during required inspection, and subsequent fatigue fracture of the left main landing gear saddle resulting in separation of the saddle and disabling of the left main gear.
- [NTSB SEA99LA136](https://openairdocs.org/ntsb/SEA99LA136.md): Cessna 182G · Freeland, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 1999 · N2492R · Substantial damage
  > The pilot-in-command's improper use of carburetor heat and overload of the nose gear assembly during the forced landing. Contributing factors were carburetor icing conditions, the ditch and fence.
- [NTSB SEA99LA133](https://openairdocs.org/ntsb/SEA99LA133.md): Beech B36TC · Renton, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 1, 1999 · N3151G · Substantial damage
  > A loss of engine power for undetermined reasons. A factor was insufficient altitude available to return to the departure runway following the loss of power.
- [NTSB SEA99LA140](https://openairdocs.org/ntsb/SEA99LA140.md): Cessna T210J · Sequim, WA · Accident · No injuries · Limited investigation · Final report · Jul 31, 1999 · N821SB · Substantial damage
  > The pilot's failure to adequately compensate for the changing wind conditions. Factors include a berm located off the east end of the runway and a tailwind.
- [NTSB SEA99LA128](https://openairdocs.org/ntsb/SEA99LA128.md): Globe GC-1B · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Jul 24, 1999 · N80622 · Substantial damage
  > The pilot's failure to maintain directional control. A related factor was the pilot's lack of experience in tailwheel aircraft.
- [NTSB SEA99LA121](https://openairdocs.org/ntsb/SEA99LA121.md): Cessna 182A · Silverdale, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 18, 1999 · N3900D · Substantial damage
  > The pilot-in-command's misjudgment of distance/altitude (undershoot) on final, and his failure to maintain directional control during the aborted landing.
- [NTSB SEA99FA126](https://openairdocs.org/ntsb/SEA99FA126.md): Cessna T-337 G-P · Snoqualmie Pass, WA · Accident · 2 fatal · Field investigation · Final report · Jul 17, 1999 · N98C · Destroyed
  > The pilot's failure to maintain clearance from mountainous terrain while maneuvering below low ceilings. Factors include low ceilings and inadequate in-flight planning.
- [NTSB SEA99LA119](https://openairdocs.org/ntsb/SEA99LA119.md): Cessna 185 · Renton, WA · Accident · No injuries · Limited investigation · Final report · Jul 14, 1999 · N532PC · Substantial damage
  > Failure of the pilot-in-command to maintain directional control after landing, resulting in a ground loop.
- [NTSB SEA99LA131](https://openairdocs.org/ntsb/SEA99LA131.md): Piper PA-23-250 · Snohomish, WA · Accident · No injuries · Limited investigation · Final report · Jul 12, 1999 · N65PR · Substantial damage
  > Brake system failure due to the presence of air bubbles in the hydraulic fluid.
- [NTSB SEA99FA112](https://openairdocs.org/ntsb/SEA99FA112.md): Beech A23 · Eatonville, WA · Accident · 1 fatal · Field investigation · Final report · Jul 10, 1999 · N8873M · Substantial damage
  > Improper fuel management which led to fuel starvation.
- [NTSB SEA99FA105](https://openairdocs.org/ntsb/SEA99FA105.md): Gadbury RV-6A · Arlington, WA · Accident · 1 fatal · Field investigation · Final report · Jul 7, 1999 · N5987D · Destroyed
  > The pilot's excessive climb rate, which lead to his failure to maintain an airspeed above stalling speed (Vs). Factors include the pilot's lack of total experience in the aircraft make and model.
- [NTSB SEA99LA110](https://openairdocs.org/ntsb/SEA99LA110.md): Parks RV-6 · Hunters, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 6, 1999 · N80274 · Substantial damage
  > The pilot's failure to maintain adequate airspeed during an attempted go-around.
- [NTSB SEA99FA104](https://openairdocs.org/ntsb/SEA99FA104.md): Harry Tomlinson Coot A · Arlington, WA · Accident · 1 fatal · Field investigation · Final report · Jul 6, 1999 · N700HT · Destroyed
  > The pilot's failure to attain adequate clearance from power transmission lines.
- [NTSB SEA99LA101](https://openairdocs.org/ntsb/SEA99LA101.md): Cessna 172P · Auburn, WA · Accident · Serious injuries · Limited investigation · Final report · Jul 3, 1999 · N531PC · Substantial damage
  > Total mechanical failure of the hydraulic tappet. A factor was an overdue major overhaul per manufacturer's recommendations.
- [NTSB SEA99LA097](https://openairdocs.org/ntsb/SEA99LA097.md): Piper PA-22-108 · Winthrop, WA · Accident · No injuries · Limited investigation · Final report · Jun 26, 1999 · N5059Z · Substantial damage
  > The pilot/passenger's failure to maintain directional control. A contributing factor was the fence.
- [NTSB SEA99LA093](https://openairdocs.org/ntsb/SEA99LA093.md): Modrow Avid Flyer · Poulsbo, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 23, 1999 · N700RM · Substantial damage
  > Engine seizing due to failure of main bearing assemblies. Factors include foreign material in the labyrinth sleeve, and a stall encountered while the pilot was attempting his emergency landing.
- [NTSB SEA99LA092](https://openairdocs.org/ntsb/SEA99LA092.md): Hughes 369D · Shelton, WA · Accident · No injuries · Limited investigation · Final report · Jun 22, 1999 · N1089Y · Substantial damage
  > The pilot's failure to maintain rotor RPM during an autorotation.
- [NTSB SEA99LA090](https://openairdocs.org/ntsb/SEA99LA090.md): Piper PA-28-140 · Zillah, WA · Accident · No injuries · Limited investigation · Final report · Jun 19, 1999 · N9887W · Substantial damage
  > The pilot's selection of unsuitable terrain for landing adjacent to the runway. Factors include sun glare encountered at the time of the landing attempt.
- [NTSB SEA99LA086](https://openairdocs.org/ntsb/SEA99LA086.md): Cessna 150M · Bellingham, WA · Accident · No injuries · Limited investigation · Final report · Jun 15, 1999 · N9349U · Substantial damage
  > Compensation for wind conditions was inadequate. Gusting wind conditions was a factor.
- [NTSB SEA99LA084](https://openairdocs.org/ntsb/SEA99LA084.md): Cessna 172P · Easton, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 1999 · N62800 · Substantial damage
  > The flight instructor's delayed remedial action. Factors include the student allowing the aircraft to climb too steeply at too low an airspeed, and the soft/rough terrain on which the aborted takeoff took place.
- [NTSB SEA99LA082](https://openairdocs.org/ntsb/SEA99LA082.md): Hughes 369D · Southbend, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 8, 1999 · N8306F · Substantial damage
  > The complete loss of power, due to a failure of the compressor impeller disk. Factors include the low altitude of the helicopter at the time of the power loss, and the need to autorotate in a confined area.
- [NTSB SEA99FA080](https://openairdocs.org/ntsb/SEA99FA080.md): Piper PA-18-150 · Ephrata, WA · Accident · 1 fatal · Field investigation · Final report · Jun 3, 1999 · N3189Z · Destroyed
  > The glider pilot's failure to maintain control of his aircraft during spoiler retraction, which led to the Piper pilot's inability to recover safe flying airspeed within the altitude constraints at the time of the event. Contributing factors were the failure…
- [NTSB SEA99LA077](https://openairdocs.org/ntsb/SEA99LA077.md): Cessna 172N · Covington, WA · Accident · Minor injuries · Limited investigation · Final report · May 27, 1999 · N5120D · Substantial damage
  > The student pilot's inadequate recovery from a bounced landing, and his subsequent improper execution of the go-around procedure, resulting in collision with trees off the departure end of the runway. Factors included the student pilot's lack of total…
- [NTSB SEA99LA074](https://openairdocs.org/ntsb/SEA99LA074.md): Grumman-Schweizer G-164A · Prescott, WA · Accident · No injuries · Limited investigation · Final report · May 27, 1999 · N9970 · Substantial damage
  > The pilot-in-command's failure to maintain directional control during the takeoff roll and overloading of the right landing gear strut. Contributing factors were the soft takeoff surface, confined (narrow) takeoff surface, and high vegetation.
- [NTSB SEA99LA071](https://openairdocs.org/ntsb/SEA99LA071.md): Ben Travis Kitfox IV · Carnation, WA · Accident · No injuries · Limited investigation · Final report · May 25, 1999 · N149BT · Substantial damage
  > Loss of engine power due to a cracked engine impulse line, which disabled the fuel pump. A factor was the intentional ground loop by the pilot.
- [NTSB SEA99LA073](https://openairdocs.org/ntsb/SEA99LA073.md): Cessna 180K · Bremerton, WA · Accident · No injuries · Limited investigation · Final report · May 23, 1999 · N2567K · Substantial damage
  > Failure of the landing gear attach bolt due to fatigue failure resulting in the left main landing gear collapsing.
- [NTSB SEA99LA069](https://openairdocs.org/ntsb/SEA99LA069.md): Piper PA-28-140 · Lyman, WA · Accident · No injuries · Limited investigation · Final report · May 23, 1999 · N6216W · Substantial damage
  > The pilot-in-command's improper execution of takeoff procedures, and his delay in aborting the takeoff. Contributing factors were the fence post and trees.
- [NTSB SEA99LA076](https://openairdocs.org/ntsb/SEA99LA076.md): Cessna A185E · Othello, WA · Accident · No injuries · Limited investigation · Final report · May 21, 1999 · N50AU · Substantial damage
  > The pilot's inadequate compensation for wind conditions after landing. Factors include gusty winds.

Next page: https://openairdocs.org/ntsb.md?state=WA&page=28

## 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=27&state=WA

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