# NTSB investigations, WA: Airframe/component/system failure/malfunction 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 3 · 145 cases ## Latest cases - [NTSB SEA07TA212](https://openairdocs.org/ntsb/SEA07TA212.md): Hughes 369D · Omak, WA · Accident · No injuries · Final report · Jul 22, 2007 · N69PF · Substantial damage > The pilot's failure to maintain clearance from the surface of a pond that he was using as a water bucket refill site, which resulted in a tail rotor strike to the water's surface and a torsional overload failure of the tail rotor drive shaft. - [NTSB SEA07LA213](https://openairdocs.org/ntsb/SEA07LA213.md): Boeing A-75 · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Jul 21, 2007 · N56551 · Substantial damage > The locking/seizing of a main landing gear brake mechanism during the landing roll. - [NTSB LAX07LA215](https://openairdocs.org/ntsb/LAX07LA215.md): Cessna 172RG · Roche Harbor, WA · Accident · No injuries · Limited investigation · Final report · Jul 12, 2007 · N9551B · Substantial damage > The pilot's failure to perform the emergency landing gear extension procedure prior to landing. A contributing factor in the accident was the failure of the electrical system. - [NTSB SEA07CA159](https://openairdocs.org/ntsb/SEA07CA159.md): Nelson Murphy SR3500 Moose · Roche Harbor, WA · Accident · Serious injuries · Data collection · Final report · Jun 15, 2007 · N623AM · Substantial damage > The jamming of the left brake during landing. A factor was the kit manufacturer's design of the brake system. - [NTSB SEA07LA093](https://openairdocs.org/ntsb/SEA07LA093.md): Champion 7ECA · East Wenatchee, WA · Accident · No injuries · Limited investigation · Final report · Apr 5, 2007 · N6096F · Substantial damage > Separation of the left main landing gear shock absorbing strut during takeoff. A missing screw was a factor. - [NTSB SEA07CA032](https://openairdocs.org/ntsb/SEA07CA032.md): Riley D-16A · Point Roberts, WA · Accident · No injuries · Data collection · Final report · Dec 1, 2006 · N119N · Substantial damage > the pre-existing crack in the nose wheel fork, which allowed separation of the nose wheel during the takeoff roll, resulting in collapse of the nose landing gear. - [NTSB SEA06LA166](https://openairdocs.org/ntsb/SEA06LA166.md): Piper PA-24-250 · Auburn, WA · Accident · No injuries · Limited investigation · Final report · Aug 19, 2006 · N6249P · Substantial damage > The failure of the landing gear's normal retraction/extension assembly due to an overload condition. - [NTSB SEA06CA157](https://openairdocs.org/ntsb/SEA06CA157.md): Piggott Bearhawk · Port Angeles, WA · Accident · No injuries · Data collection · Final report · Aug 5, 2006 · N347JP · Substantial damage > The loss of directional control as a result of the disconnected tail wheel steering system, which led to an inadvertent ground loop during the landing roll. - [NTSB SEA06CA149](https://openairdocs.org/ntsb/SEA06CA149.md): Maule M-7-235C · Auburn, WA · Accident · No injuries · Data collection · Final report · Jul 26, 2006 · N15SN · Substantial damage > The loss of directional control [not possible] during landing roll as a result of the disconnected tail wheel steering assembly [for undetermined reasons], which led to an inadvertent ground loop during the landing roll. - [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 SEA06CA078](https://openairdocs.org/ntsb/SEA06CA078.md): Cessna 170B · Shelton, WA · Accident · No injuries · Data collection · Final report · Apr 18, 2006 · N2886C · Substantial damage > The main landing gear wheel failure during the takeoff ground roll. A related factor was directional control of the aircraft was not possible after the wheel failure. - [NTSB SEA06CA051](https://openairdocs.org/ntsb/SEA06CA051.md): Ercoupe 415-C · Arlington, WA · Accident · No injuries · Data collection · Final report · Feb 12, 2006 · N93788 · Substantial damage > The pilot's excessive descent rate and his delay in taking action to reduce the descent rate which resulted in an in-flight collision with the runway during an emergency landing. Contributing factors were the total loss of engine oil pressure and the pilot's… - [NTSB SEA06CA018](https://openairdocs.org/ntsb/SEA06CA018.md): Piper PA-24-250 · Tacoma, WA · Accident · No injuries · Data collection · Final report · Nov 3, 2005 · N1959P · Substantial damage > The collapse of the landing gear due to the pilot's failure to use the emergency gear extension system after his aircraft experienced a complete loss of electrical power. Factors include the malfunction of the voltage regulating system, which lead to the… - [NTSB SEA06LA004](https://openairdocs.org/ntsb/SEA06LA004.md): Beech G35 · Longview, WA · Accident · No injuries · Limited investigation · Final report · Oct 7, 2005 · N4647D · Substantial damage > Ruddervator flutter which resulted in the buckling of the empennage. The reason for the ruddervator flutter was undetermined. - [NTSB SEA05LA179](https://openairdocs.org/ntsb/SEA05LA179.md): American Champion 7KCAB · Richland, WA · Accident · No injuries · Limited investigation · Final report · Aug 22, 2005 · N7546T · Substantial damage > The oil pressure gauge line fitting coming loose from the engine, resulting in the loss of oil to the point where internal engine components were starved for oil, leading to extensive internal damage and seizing of the engine. Factors include a set of eight… - [NTSB SEA05LA163](https://openairdocs.org/ntsb/SEA05LA163.md): Steele Safari · Leavenworth, WA · Accident · No injuries · Limited investigation · Final report · Aug 4, 2005 · N13MA · Substantial damage > The failure of the tail rotor drive shaft during cruise flight. Factors include soft, grassy terrain at the location where the pilot executed the autorotational landing. - [NTSB SEA05IA115](https://openairdocs.org/ntsb/SEA05IA115.md): Piper PA-46-350P · Tacoma, WA · Incident · No injuries · Incident investigation · Final report · Jun 2, 2005 · N27PG · Minor damage > The initiation and propagation of a fatigue crack, over 5,273 hours of cyclic in-flight usage, through approximately 80 percent of the aircraft's right wing spar lower cap. - [NTSB SEA05LA106](https://openairdocs.org/ntsb/SEA05LA106.md): Piper PA-28-140 · Puyallup, WA · Accident · No injuries · Limited investigation · Final report · May 14, 2005 · N7263J · Substantial damage > The fatigue cracking of the upper torque link attach lugs on the right main landing gear strut, which resulted in separation of the right main landing gear. - [NTSB SEA05FA022](https://openairdocs.org/ntsb/SEA05FA022.md): Cessna 185F · Renton, WA · Accident · 1 fatal · Field investigation · Final report · Dec 5, 2004 · N532PC · Destroyed > The pilot's failure to maintain aircraft control when the flaps became jammed/stuck in their full-down position during a takeoff from a touch-and-go landing. Factors include a worn/disconnected flap latch mechanism, and the flaps being unable to be retracted. - [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 SEA04LA162](https://openairdocs.org/ntsb/SEA04LA162.md): Universal Moulded Pdts. Monocoach · Pullman, WA · Accident · No injuries · Limited investigation · Final report · Aug 17, 2004 · N11872 · Substantial damage > The failure of a landing gear oleo retaining nut safety clip (snap ring) at an unknown point in time, leading to the partial separation of the landing gear strut while in flight, and the full collapse of the strut during the subsequent landing. Factors… - [NTSB SEA04LA050](https://openairdocs.org/ntsb/SEA04LA050.md): Cessna 170 · Herron, WA · Accident · 2 fatal · Limited investigation · Final report · Mar 1, 2004 · N2534V · Destroyed > The failure of the left muffler while maneuvering, resulting in a carbon monoxide leak into the cabin rendering the pilot incapacitated, and the subsequent uncontrolled descent and impact with water. - [NTSB SEA03LA201](https://openairdocs.org/ntsb/SEA03LA201.md): Cessna 172S · Anacortes, WA · Accident · No injuries · Limited investigation · Final report · Sep 18, 2003 · N3555L · Substantial damage > The pilot attempting to taxi the airplane with a known system deficiency. Factors include worn wheel brakes and a drainage ditch. - [NTSB SEA03GA153](https://openairdocs.org/ntsb/SEA03GA153.md): Kaman K-1200 · Keller, WA · Accident · 1 fatal · Final report · Jul 26, 2003 · N314KA · Destroyed > Corrosion fatigue within the blade retention bolt bushing(s) of the main rotor blade grip resulting in fatigue, cracking and ultimate separation of the upper grip plate. The separation of the upper blade grip plate led to a dynamic imbalance within the rotor… - [NTSB SEA03FA147](https://openairdocs.org/ntsb/SEA03FA147.md): Cessna Citation 525 · Coupeville, WA · Accident · No injuries · Field investigation · Final report · Jul 22, 2003 · N996JR · Substantial damage > The loss of airplane pitch control (trim runway and mistrim condition) resulting from a failure in the airplane's electric pitch trim system. Factors that contributed to the accident were the manufacturer's inadequate design of the pitch trim circuitry that… - [NTSB SEA03LA128](https://openairdocs.org/ntsb/SEA03LA128.md): Mooney M20-J · Renton, WA · Accident · No injuries · Limited investigation · Final report · Jul 4, 2003 · N201DV · Substantial damage > In-flight failure of the electric landing gear motor during the initial takeoff climb. - [NTSB SEA03LA098](https://openairdocs.org/ntsb/SEA03LA098.md): Cessna R182 · Kent, WA · Accident · No injuries · Limited investigation · Final report · Jun 12, 2003 · N7568T · Substantial damage > The failure of the flaps to operate properly for undetermined reasons during the initial climb and subsequent aborted takeoff. A factor was the collapse of the main landing gear due to an inadequate amount of time for the gear extension process to be… - [NTSB SEA03LA061](https://openairdocs.org/ntsb/SEA03LA061.md): Avia Stroitel AC-5M · Richland, WA · Accident · No injuries · Limited investigation · Final report · Apr 12, 2003 · N125MZ · Substantial damage > The pilot's failure to maintain airspeed and the failure of the propeller drive assembly. A factor contributing to the accident was the inadvertent stall. - [NTSB SEA02LA116](https://openairdocs.org/ntsb/SEA02LA116.md): Beech G35 · Yakima, WA · Accident · No injuries · Limited investigation · Final report · Jun 21, 2002 · N4647D · Substantial damage > Empennage flutter which resulted in structural damage during descent for landing. Turbulence was a factor. - [NTSB SEA02IA092](https://openairdocs.org/ntsb/SEA02IA092.md): McDonnell Douglas MD-11F · Seatac, WA · Incident · No injuries · Incident investigation · Final report · May 31, 2002 · N608FE · Minor damage > Failure of the copilot's forward (R1) windshield anti-ice controller resulting in a continuous over voltage condition, followed by the subsequent overheating and shattering of the windscreen. - [NTSB SEA02LA061](https://openairdocs.org/ntsb/SEA02LA061.md): Piper PA-22 · Friday Harbor, WA · Accident · No injuries · Limited investigation · Final report · Mar 28, 2002 · N1810P · Substantial damage > The failure of the brake system during the landing roll. An intentional ground loop and a dirt bank were factors. - [NTSB SEA01LA165](https://openairdocs.org/ntsb/SEA01LA165.md): Cessna T210L · Olympia, WA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2001 · N6721M · Substantial damage > The inability of the landing gear to fully extend due to the failure of a hydraulic hose in the nose gear extension system. - [NTSB SEA01LA141](https://openairdocs.org/ntsb/SEA01LA141.md): Taylor Smith Mini DSA-1 · Sultan, WA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2001 · N53BT · Substantial damage > The separation/loss of the bolt and castle nut which connected the elevator bellcrank to the control stick pushrod resulting in a disconnect between the cockpit and the control surface and ultimately, the pilot's total loss of pitch control. - [NTSB SEA01LA088](https://openairdocs.org/ntsb/SEA01LA088.md): Maule Air M-7-235 · Everett, WA · Accident · No injuries · Limited investigation · Final report · May 11, 2001 · N5669S · Substantial damage > A system failure for undetermined reasons while on final approach. The pilot's failure to maintain control of the aircraft was a factor. - [NTSB SEA01LA075](https://openairdocs.org/ntsb/SEA01LA075.md): Cessna 177RG · Seattle, WA · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 2001 · N8283G · Substantial damage > the reverse rigging of the aileron flight control system resulting in aileron deflections opposite that of the pilot's inputs which lead to an uncontrolled descent into the terrain. Factors include the pilot's failure to detect the misrigged ailerons during… - [NTSB SEA01LA067](https://openairdocs.org/ntsb/SEA01LA067.md): Republic RC-3 · Carr Inlet, WA · Accident · No injuries · Limited investigation · Final report · Mar 23, 2001 · N6295K · Substantial damage > Fatigue fracture of the propeller attaching bolts resulting in the total separation of the propeller assembly from the crankshaft flange. - [NTSB SEA01LA042](https://openairdocs.org/ntsb/SEA01LA042.md): Cessna 182R · Renton, WA · Accident · No injuries · Limited investigation · Final report · Jan 28, 2001 · N7568T · Substantial damage > The worn condition of the hydraulic pump gears which resulted in a continuous running pump, subsequent pump motor overheat and eventually the tripping of the pump motor circuit breaker. An additional cause was the pilot's failure to verify that the landing… - [NTSB SEA01IA039](https://openairdocs.org/ntsb/SEA01IA039.md): McDonnell Douglas DC-8-71F · Seattle, WA · Incident · No injuries · Incident investigation · Final report · Jan 16, 2001 · N8084U · No damage > A malfunctioning relay in the aircraft's flight management system (FMS) switching matrix and associated false "on course" indication on the captain's course deviation indicator (CDI), resulting in proper localizer course alignment not being obtained or… - [NTSB SEA01LA008](https://openairdocs.org/ntsb/SEA01LA008.md): Wildman Adventurer · Yelm, WA · Accident · 1 fatal · Limited investigation · Final report · Oct 23, 2000 · N567AW · Destroyed > A main rotor blade strike (impact) with both a pusher propeller blade and the rudder during an unknown phase of operation resulting in a loss of control and uncontrolled descent to terrain. - [NTSB SEA00LA197](https://openairdocs.org/ntsb/SEA00LA197.md): Bell 206BII · Newhalem, WA · Accident · No injuries · Limited investigation · Final report · Aug 24, 2000 · N90307 · Substantial damage > Debonding between the elastomeric material and the center plate of the transmission isolation mount. - [NTSB SEA00LA129](https://openairdocs.org/ntsb/SEA00LA129.md): Kaman K-1200 · Cusick, WA · Accident · Serious injuries · Limited investigation · Final report · Jul 11, 2000 · N311KA · Substantial damage > The termination of power to the main rotor system as a result of the malfunction of the free-wheeling sprag clutch assembly, followed by the torsional overload separation of the engine adapter shaft. Factors include trees in the area where the emergency… - [NTSB SEA00IA108](https://openairdocs.org/ntsb/SEA00IA108.md): Douglas DC-8-73 · Seattle, WA · Incident · No injuries · Incident investigation · Final report · Jun 17, 2000 · N831AL · No damage > Auxiliary hydraulic pump leak resulting in a failure of the hydraulic system. - [NTSB SEA00IA069](https://openairdocs.org/ntsb/SEA00IA069.md): Cessna 182P · Tacoma, WA · Incident · No injuries · Incident investigation · Final report · Apr 11, 2000 · N1298M · Minor damage > Flap attachment failure. Restricted movement of the aileron was a factor. - [NTSB SEA00LA065](https://openairdocs.org/ntsb/SEA00LA065.md): Aero Design Eleven 12 · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Apr 10, 2000 · N80XP · Substantial damage > Cracking of the weld between the tailwheel stinger housing and longitudinal cross tube, resulting in separation of the tube/tail wheel assembly from the airframe. - [NTSB SEA00LA066](https://openairdocs.org/ntsb/SEA00LA066.md): Beech A200 · Seattle, WA · Accident · No injuries · Limited investigation · Final report · Apr 8, 2000 · N258AG · Substantial damage > The pilot's failure to properly follow pre-takeoff checklists (resulting in the engine starters remaining engaged after engine start, generators not being activated, discharge of the aircraft battery and consequent total electrical failure during flight with… - [NTSB SEA00FA061](https://openairdocs.org/ntsb/SEA00FA061.md): Bell 47G-3B-1 · Stanwood, WA · Accident · 1 fatal · Field investigation · Final report · Apr 2, 2000 · N3377H · Destroyed > The disengagement of the oil jet fitting from its threaded receptacle at the forward end of the engine crankshaft. This resulted in excessive oil within the clutch assembly, the subsequent slipping of the clutch, and ultimately the disengagement of the rotor… - [NTSB SEA00LA059](https://openairdocs.org/ntsb/SEA00LA059.md): Aero Commander S2R · Odessa, WA · Accident · No injuries · Limited investigation · Final report · Mar 31, 2000 · N3662X · Substantial damage > Disintegration of a lining of the right brake and subsequent lodging of brake lining debris between the brake housing and brake disc, resulting in seizure of the right brake. A factor was that directional control was not possible. - [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 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 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. Next page: https://openairdocs.org/ntsb.md?state=WA&occurrence=130&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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=130&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.