NTSB investigations, 1999, WA
180,611 investigations by the National Transportation Safety Board since 1962: 174,590 accidents, the rest incidents and other occurrences. Each has NTSB’s narrative and, once the investigation is done, its probable cause; since 2008, its findings and sequence of events.
Cases per year
| 1963 | 1 |
|---|---|
| 1964 | 110 |
| 1965 | 131 |
| 1966 | 140 |
| 1967 | 159 |
| 1968 | 125 |
| 1969 | 116 |
| 1970 | 118 |
| 1971 | 86 |
| 1972 | 107 |
| 1973 | 104 |
| 1974 | 109 |
| 1975 | 129 |
| 1976 | 117 |
| 1977 | 104 |
| 1978 | 118 |
| 1979 | 118 |
| 1980 | 107 |
| 1981 | 102 |
| 1982 | 95 |
| 1983 | 101 |
| 1984 | 89 |
| 1985 | 73 |
| 1986 | 100 |
| 1987 | 79 |
| 1988 | 80 |
| 1989 | 76 |
| 1990 | 78 |
| 1991 | 94 |
| 1992 | 79 |
| 1993 | 69 |
| 1994 | 67 |
| 1995 | 73 |
| 1996 | 65 |
| 1997 | 62 |
| 1998 | 67 |
| 1999 | 68 |
| 2000 | 67 |
| 2001 | 66 |
| 2002 | 66 |
| 2003 | 74 |
| 2004 | 75 |
| 2005 | 59 |
| 2006 | 49 |
| 2007 | 53 |
| 2008 | 58 |
| 2009 | 58 |
| 2010 | 51 |
| 2011 | 58 |
| 2012 | 54 |
| 2013 | 37 |
| 2014 | 47 |
| 2015 | 36 |
| 2016 | 32 |
| 2017 | 39 |
| 2018 | 47 |
| 2019 | 37 |
| 2020 | 28 |
| 2021 | 41 |
| 2022 | 35 |
| 2023 | 36 |
| 2024 | 29 |
| 2025 | 37 |
| 2026 | 29 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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 year(c.\"eventDate\") = 1999
AND c.\"eventStateOrRegion\" = 'WA' AND c.\"eventCountry\" = 'USA'
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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 year(c."eventDate") = 1999 AND c."eventStateOrRegion" = 'WA' AND c."eventCountry" = 'USA' ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB SEA00LA034Accident · No injuriesLimited investigationFinal reportCessna 182S · Kennewick, WAThe pilot's decision to continue flight into known icing conditions, and his subsequent failure to maintain adequate airspeed on final approach, resulting in a hard landing. Factors included: icing conditions; the pilot's improper decision to continue to his…NTSB SEA00LA029Accident · Minor injuriesLimited investigationFinal reportCessna 140 · Port Townsend, WACompensation for wind conditions was inadequate. Gusting wind conditions were a factor.NTSB SEA00LA027Accident · Serious injuriesLimited investigationFinal reportBeech B-19 · Grand Coulee, WAThe pilot's failure to maintain clearance from power transmission lines. Factors include dark night conditions.NTSB SEA00LA026Accident · No injuriesLimited investigationFinal reportRockwell NA-265-65 · Seattle, WAInadequate visual lookout and clearance was not maintained. Diverted attention, dark night conditions and rain were factors.NTSB SEA00LA024Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Goldendale, WAThe pilot's failure to maintain directional control. A factor was a rock just off the edge of the runway surface.NTSB SEA00FA023Accident · 4 fatalField investigationFinal reportde Havilland DHC-2 MK. I · Washougal, WAThe 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 SEA00FA021Accident · Minor injuriesField investigationFinal reportBell 206L-3 · Seattle, WAAdequate separation and lookout not maintained by the pilots of both aircraft.NTSB SEA00LA011Accident · No injuriesLimited investigationFinal reportBeech A36TC · Pasco, WAThe pilot's failure to extend the landing gear. Factors include a blocked view of the landing gear light indicating system.NTSB SEA00LA016Accident · No injuriesLimited investigationFinal reportAero Commander 680 · Bremerton, WALoss 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 SEA00IA007Incident · No injuriesIncident investigationFinal reportCessna 172P · Wenatchee, WAThe failure of the pilots in both aircraft to maintain an adequate visual lookout. Haze was a factor.NTSB SEA00FA001Accident · Minor injuriesField investigationFinal reportde Havilland DHC-2 Mark 1 · Port Blakely, WAThe pilot-in-command's failure to maintain adequate clearance from trees/terrain. Contributing factors were rising terrain and trees.NTSB SEA99LA174Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Vaughn, WAThe separation of a propeller blade tip due to fatigue, and the improper maintenance procedure.NTSB SEA99LA173Accident · No injuriesLimited investigationFinal reportCessna 150M · Camas, WAA misjudged approach and inadequate airspeed. Sunglare, a delayed decision to go-around, and not maintaining clearance from a fence were factors.NTSB SEA99LA171Accident · No injuriesLimited investigationFinal reportGarlick UH-1H · Usk, WAFatigue failure of the 90-degree gearbox attachment studs, resulting in separation of the tailrotor and 90-degree gearbox from the vertical fin.NTSB SEA99LA165Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-180 · Eatonville, WAInadequate inflight planning/preparation and terrain clearance not maintained. Mountainous terrain, cloudy conditions and delayed remedial action are factorsNTSB SEA99LA163Accident · No injuriesLimited investigationFinal reportStinson V77 · Tacoma, WAThe pilot-in-command's inadvertent use of heavier than normal braking during the landing roll. A contributing factor was the gusty wind conditions.NTSB SEA99LA160Accident · No injuriesLimited investigationFinal reportCessna 172M · Tahola, WAThe 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 SEA99LA158Accident · No injuriesLimited investigationFinal reportCessna 170B · Auburn, WALoss 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 SEA99LA151Accident · 1 fatalLimited investigationFinal reportRotordyne 200 · Kent, WAThe owner/builder's failure to properly torque the rotor blade retaining bolts.NTSB SEA99LA149Accident · 1 fatalLimited investigationFinal reportBell 47G-2 · Benton City, WAA 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 SEA99IA148Incident · No injuriesIncident investigationFinal reportEmbraer ERJ-135 · Moses Lake, WAMinimum aircraft control exceeded during takeoff test flight, which resulted in dragging a wing on the runway surface.NTSB SEA99FA146Accident · 2 fatalField investigationFinal reportRepublic RC-3 · Chimacum, WAThe 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 SEA99FA144Accident · 1 fatalField investigationFinal reportBeech F33A · White Swan, WAInadequate preflight planning/preparation and low airspeed. A dirt embankment, soft runway, and an excessive takeoff weight were factors.NTSB SEA99LA142Accident · No injuriesLimited investigationFinal reportCessna 152 · Kennewick, WAThe student pilot's inadequate compensation for gusty wind conditions. A contributing factor was gusty winds.NTSB SEA99LA143Accident · No injuriesLimited investigationFinal reportCessna 210B · Port Angeles, WAThe 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 SEA99LA136Accident · Minor injuriesLimited investigationFinal reportCessna 182G · Freeland, WAThe 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 SEA99LA133Accident · Minor injuriesLimited investigationFinal reportBeech B36TC · Renton, WAA 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 SEA99LA140Accident · No injuriesLimited investigationFinal reportCessna T210J · Sequim, WAThe 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 SEA99LA128Accident · No injuriesLimited investigationFinal reportGlobe GC-1B · Spokane, WAThe pilot's failure to maintain directional control. A related factor was the pilot's lack of experience in tailwheel aircraft.NTSB SEA99LA121Accident · Minor injuriesLimited investigationFinal reportCessna 182A · Silverdale, WAThe pilot-in-command's misjudgment of distance/altitude (undershoot) on final, and his failure to maintain directional control during the aborted landing.NTSB SEA99FA126Accident · 2 fatalField investigationFinal reportCessna T-337 G-P · Snoqualmie Pass, WAThe pilot's failure to maintain clearance from mountainous terrain while maneuvering below low ceilings. Factors include low ceilings and inadequate in-flight planning.NTSB SEA99LA119Accident · No injuriesLimited investigationFinal reportCessna 185 · Renton, WAFailure of the pilot-in-command to maintain directional control after landing, resulting in a ground loop.NTSB SEA99LA131Accident · No injuriesLimited investigationFinal reportPiper PA-23-250 · Snohomish, WABrake system failure due to the presence of air bubbles in the hydraulic fluid.NTSB SEA99FA112Accident · 1 fatalField investigationFinal reportBeech A23 · Eatonville, WAImproper fuel management which led to fuel starvation.NTSB SEA99FA105Accident · 1 fatalField investigationFinal reportGadbury RV-6A · Arlington, WAThe 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 SEA99LA110Accident · Minor injuriesLimited investigationFinal reportParks RV-6 · Hunters, WAThe pilot's failure to maintain adequate airspeed during an attempted go-around.NTSB SEA99FA104Accident · 1 fatalField investigationFinal reportHarry Tomlinson Coot A · Arlington, WAThe pilot's failure to attain adequate clearance from power transmission lines.NTSB SEA99LA101Accident · Serious injuriesLimited investigationFinal reportCessna 172P · Auburn, WATotal mechanical failure of the hydraulic tappet. A factor was an overdue major overhaul per manufacturer's recommendations.NTSB SEA99LA097Accident · No injuriesLimited investigationFinal reportPiper PA-22-108 · Winthrop, WAThe pilot/passenger's failure to maintain directional control. A contributing factor was the fence.NTSB SEA99LA093Accident · Minor injuriesLimited investigationFinal reportModrow Avid Flyer · Poulsbo, WAEngine 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 SEA99LA092Accident · No injuriesLimited investigationFinal reportHughes 369D · Shelton, WAThe pilot's failure to maintain rotor RPM during an autorotation.NTSB SEA99LA090Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Zillah, WAThe 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 SEA99LA086Accident · No injuriesLimited investigationFinal reportCessna 150M · Bellingham, WACompensation for wind conditions was inadequate. Gusting wind conditions was a factor.NTSB SEA99LA084Accident · Minor injuriesLimited investigationFinal reportCessna 172P · Easton, WAThe 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 SEA99LA082Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Southbend, WAThe 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 SEA99FA080Accident · 1 fatalField investigationFinal reportPiper PA-18-150 · Ephrata, WAThe 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 SEA99LA077Accident · Minor injuriesLimited investigationFinal reportCessna 172N · Covington, WAThe 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 SEA99LA074Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Prescott, WAThe 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 SEA99LA071Accident · No injuriesLimited investigationFinal reportBen Travis Kitfox IV · Carnation, WALoss 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 SEA99LA073Accident · No injuriesLimited investigationFinal reportCessna 180K · Bremerton, WAFailure of the landing gear attach bolt due to fatigue failure resulting in the left main landing gear collapsing.