NTSB investigations, WA
678 cases where the phase of flight was Maneuvering.
Cases per year
| 1964 | 19 |
|---|---|
| 1965 | 15 |
| 1966 | 12 |
| 1967 | 16 |
| 1968 | 17 |
| 1969 | 14 |
| 1970 | 9 |
| 1971 | 17 |
| 1972 | 16 |
| 1973 | 15 |
| 1974 | 15 |
| 1975 | 16 |
| 1976 | 20 |
| 1977 | 10 |
| 1978 | 17 |
| 1979 | 14 |
| 1980 | 12 |
| 1981 | 16 |
| 1982 | 10 |
| 1983 | 13 |
| 1984 | 14 |
| 1985 | 11 |
| 1986 | 17 |
| 1987 | 11 |
| 1988 | 12 |
| 1989 | 13 |
| 1990 | 6 |
| 1991 | 9 |
| 1992 | 13 |
| 1993 | 16 |
| 1994 | 11 |
| 1995 | 14 |
| 1996 | 11 |
| 1997 | 8 |
| 1998 | 17 |
| 1999 | 12 |
| 2000 | 11 |
| 2001 | 7 |
| 2002 | 7 |
| 2003 | 9 |
| 2004 | 17 |
| 2005 | 9 |
| 2006 | 7 |
| 2007 | 10 |
| 2008 | 8 |
| 2009 | 6 |
| 2010 | 6 |
| 2011 | 10 |
| 2012 | 16 |
| 2013 | 4 |
| 2014 | 5 |
| 2015 | 7 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 4 |
Where
Latest cases
Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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 case_mkey FROM case_phases WHERE main = 450)
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.
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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 case_mkey FROM case_phases WHERE main = 450)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 WPR26FA354Accident · 1 fatalClass 3 · FieldPreliminary reportCessna 172B · Royal City, WAOn September 23, 2026, about 1711 Pacific daylight time, a Cessna 172B, N44P, was substantially damaged when it was involved in an accident near Royal City, Washington. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal…NTSB ANC26LA098Accident · Serious injuriesClass 3 · LimitedPreliminary reportPitts Model 12 · Lake Stevens, WAOn September 6, 2026, about 1800 Pacific daylight time, an experimental Pitts Model 12 airplane, N491X, was substantially damaged when it was involved in an accident near Lake Stevens, Washington. The pilot sustained serious injuries. The airplane was…NTSB WPR26LA275Accident · Minor injuriesClass 3 · LimitedPreliminary reportCzech Aircraft Works Mermaid Skeeter 2 · Cougar, WAOn July 22, 2026, about 1129 Pacific daylight time, an experimental amateur built Czech Aircraft Works Mermaid Skeeter 2 airplane, N42SK, was substantially damaged when it was involved in an accident near Cougar, Washington. The pilot was seriously injured.…NTSB WPR26FA233Accident · 2 fatalClass 3 · FieldPreliminary reportCessna 195 · Pasco, WAOn June 24, 2026, about 1428 Pacific daylight time, a float equipped Cessna 195, N3877V, was substantially damaged when it was involved in an accident near Pasco, Washington. The pilot and passenger were fatally injured. The airplane was operated under Title…NTSB WPR25FA294Accident · 1 fatalClass 3 · FieldPreliminary reportCessna 172F · Battle Ground, WAOn September 26, 2025, about 1306, Pacific daylight time a Cessna 172F, N8219U, was destroyed when it was involved in an accident near Battle Ground, Washington. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal…NTSB WPR25LA290Accident · Minor injuriesClass 3 · LimitedPreliminary reportEurocopter EC135 · Whittier, WAOn September 23, 2025, at 2303 Pacific daylight time, a Eurocopter EC-135 T2+, N955AL, was substantially damaged when it was involved in an accident near Whittier, Washington. The pilot and three medical crew members received minor injuries. The helicopter…NTSB WPR25LA246Accident · No injuriesClass 4 · LimitedFinal reportHiller UH-12E · Fobes Hill, WAThe pilot’s abrupt maneuver to avoid a powerline during an aerial application flight, which resulted in the helicopter’s impact with terrain.NTSB WPR25LA216Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 172 · Concrete, WAThe pilot’s failure to maintain clearance from powerlines, which resulted in a wire strike.NTSB WPR24FA298Accident · 1 fatalClass 3 · FieldFinal reportBoeing A75L3 · Yacolt, WAThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at a low altitude in mountainous terrain in moderately high density altitude conditions, resulting in an aerodynamic stall and subsequent impact with terrain.NTSB WPR24FA184Accident · 1 fatalClass 3 · FieldFinal reportBeech A45 · Deer Harbor, WAThe pilot’s decision to perform an aerobatic maneuver at low level, and his misjudged entry altitude for the maneuver, which resulted in impact with water.NTSB WPR24LA173Accident · No injuriesClass 4 · LimitedFinal reportSikorsky S-55QT · Benton City, WAThe pilot’s failure to maintain clearance from power lines during a low altitude operation.NTSB WPR24LA139Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R22 Beta · Olympia, WAThe flight instructor’s delayed action to arrest the descending, left pedal turn while maneuvering for a low-altitude hover with the helicopter near the maximum gross weight limitation, which resulted in an impact with the ground and a dynamic rollover.NTSB WPR24LA113Accident · Minor injuriesClass 4 · LimitedFinal reportKitfox S7 Super Sport · Asotin, WAPilot’s failure to maintain clearance from powerlines during low altitude flying.NTSB WPR24LA039Accident · No injuriesClass 3 · LimitedFinal reportCessna 150M · Woodland, WAThe flight instructor’s inadequate preflight planning, which resulted in fuel exhaustion and a total loss of engine power.NTSB WPR24LA009Accident · Serious injuriesClass 3 · LimitedFinal reportStephen D Phillabaum Helicycle · Deer Park, WAA loss of engine power due to fuel starvation resulting from contamination of the fuel system during low-level flight.NTSB WPR23FA351Accident · 1 fatalClass 3 · FieldFinal reportGolden Circle T Bird · Arlington, WAA failure of the forward left wing spar due to an improper repair, which resulted in an inflight separation of the left wing. Contributing to the accident was improper maintenance by splicing the wing spar.NTSB WPR23LA339Accident · No injuriesClass 4 · LimitedFinal reportEurocopter France AS350B2 · Silverton, WAThe pilot’s failure to maintain visual reference and altitude while maneuvering over a lake during dusk conditions, which resulted in the helicopter impacting water.NTSB WPR23LA105Accident · No injuriesClass 4 · LimitedFinal reportHughes 269C · Yakima, WAThe pilot's failure to see and avoid a powerline while flying at low altitude over a river.NTSB WPR23FA034Accident · 4 fatalClass 2 · FieldFinal reportTextron 208B · Snohomish, WAThe pilot’s improper recovery following a departure from controlled flight after an intentional aerodynamic stall, which resulted in an exceedance of airspeed limitations, airframe overstress, and a subsequent inflight breakup.NTSB WPR22LA360Accident · No injuriesClass 4 · LimitedFinal reportCessna 150L · Lyman, WAThe pilot’s delayed decision to exit the valley with rising terrain and failure to maintain clearance from trees.NTSB WPR22LA339Accident · Minor injuriesClass 3 · LimitedFinal reportBell 205A-1 · Cougar, WAThe helicopter’s encounter with downdrafts during a low-altitude hovering maneuver while dipping for water.NTSB WPR22FA298Accident · 1 fatalClass 3 · FieldFinal reportCirrus Design SR22 · Blyn, WAThe pilot’s continued operation of the airplane with known mechanical malfunctions with the flight displays, and his continued flight into instrument meteorological conditions, which resulted in an inflight collision with terrain while maneuvering.NTSB WPR22LA245Accident · Serious injuriesClass 4 · LimitedFinal reportHiller UH-12E · Wenatchee, WAThe pilot’s failure to maintain clearance from power lines during low-level operations in light rain conditions.NTSB WPR22FA239Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT-602 · Lind, WAThe pilot's exceedance of the airplane's critical angle of attack during a steep turn, which resulted in an aerodynamic stall at an altitude too low for recovery.NTSB WPR22LA220Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Auburn, WAThe student pilot’s loss of helicopter control and the flight instructor’s delayed remedial action while providing hover training which resulted in a dynamic rollover.NTSB WPR22LA202Accident · Minor injuriesClass 3 · LimitedFinal reportFischer Super Koala · Chelan, WAA total loss of engine power for undetermined reasons.NTSB WPR21LA332Accident · No injuriesClass 4 · LimitedFinal reportCessna 172P · Wenatchee, WAThe student pilot’s inadequate inflight navigation and the flight instructors delayed remedial action which resulted in a collision with trees.NTSB WPR21LA161Accident · 2 fatalClass 3 · LimitedFinal reportRans S12 · Colville, WAThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering to avoid powerlines, which resulted in an aerodynamic stall and a loss of control. Contributing to the accident was the partial loss of engine power due to improper…NTSB WPR20LA331Accident · Serious injuriesClass 4 · LimitedFinal reportBell 206 · Randle, WAThe pilot's failure to maintain clearance from a tree while conducting an external load operation.NTSB WPR20CA274Accident · Minor injuriesClass 4 · Data collectionFinal reportUskoski Ridge Runner IV · Vancouver, WAThe pilot’s failure to maintain airplane control while maneuvering to land which resulted in an aerodynamic stall at a low altitude, which the pilot was unable to recover from.NTSB WPR20CA218Accident · No injuriesClass 4 · Data collectionFinal reportRans S6 · Richland, WAThe pilot's inability to arrest a descent rate or maintain altitude after encountering a downdraft while maneuvering at low altitude near mountainous terrain that resulted in a hard landing.NTSB WPR20CA125Accident · Minor injuriesData collectionFinal reportCessna 172 · Yakima, WAThe pilot's failure to attain sufficient altitude during a go-around, which resulted in impact with hilly terrain.NTSB WPR20LA118Accident · 1 fatalClass 3 · LimitedFinal reportKolb Firestar 2 · La Center, WAA loss of control for reasons that could not be determined based on the available information.NTSB GAA20CA018Accident · Serious injuriesData collectionFinal reportFoxworthy Rick A Sonex · Langley, WAThe pilot's failure to maintain a proper approach path, which resulted in impact with a tree.NTSB GAA19CA509Accident · Serious injuriesData collectionFinal reportRobinson R44 · Cypress Island, WAThe pilot's failure to maintain adequate clearance from a tree while maneuvering at a low altitude.NTSB WPR19FA091Accident · 1 fatalClass 2 · FieldFinal reportBell UH1B · Forks, WAA total loss of engine power due to the failure of the gas generator sealing disk as a result of the operator’s exceedance of the sealing disk life limits at too low an altitude for the pilot to accomplish a successful autorotation which resulted in the…NTSB WPR18FA261Accident · 2 fatalClass 3 · FieldFinal reportGruber Beelzabub · Rochester, WAThe pilot’s failure to maintain clearance from a tree while maneuvering at a low altitude.NTSB WPR18LA222Accident · Serious injuriesClass 3 · LimitedFinal reportAir Tractor AT802 · Northport, WAA total loss of engine power during a climb due to an accumulation of molten environmental particles, the source of which could not be determined based on the available evidence, which resulted in a forced landing.NTSB WPR18LA214Accident · Minor injuriesLimited investigationFinal reportBell 206 · Basin City, WAThe pilot's improper execution of a slowing and turning maneuver, which resulted in a loss of control at an altitude that was too low for recovery.NTSB WPR18FA195Accident · 3 fatalClass 3 · FieldFinal reportCessna 172 · Deer Park, WAAn in-flight breakup as a result of the airplane exceeding the structural strength of the airplane during a rapid descent that the flight instructor was unable to recover from following a collision with a large bird.NTSB GAA18CA352Accident · No injuriesData collectionFinal reportBell 206 · Orondo, WAThe pilot's failure to maintain clearance from power lines while maneuvering at low altitude.NTSB GAA18CA248Accident · Minor injuriesData collectionFinal reportCessna 172 · Port Angeles, WAThe pilot’s exceedance of the airplane’s critical angle of attack during a turn away from terrain, which resulted in an accelerated stall. Contributing to the accident was the pilot’s decision to delay the turn to avoid terrain.NTSB WPR18FA104Accident · 1 fatalField investigationFinal reportPiper PA 18-150 · La Center, WAThe pilot's failure to maintain clearance from trees while maneuvering at a low altitude.NTSB WPR18FA074Accident · 1 fatalField investigationFinal reportHughes 369D · Pomeroy, WAA loss of control following the gunner's failure to ensure that the net maintained clearance from the tail rotor.NTSB GAA18CA029Accident · Serious injuriesData collectionFinal reportSix Chuter West Legend XL · Mabton, WAThe pilot’s failure to see and avoid transmission wires.NTSB WPR18FA016Accident · 1 fatalField investigationFinal reportRobinson R22 · Arlington, WAThe pilot's failure to maintain adequate clearance from the water while maneuvering at low altitude.NTSB WPR17FA139Accident · 2 fatalField investigationFinal reportNorth Wing Uum Sport X2 912 · Chelan, WAThe flight instructor's failure to maintain control of the aircraft while demonstrating a spiral dive, which resulted in a loss of control. Contributing to the accident was the instructor's decision to demonstrate a spiral dive maneuver at an altitude that…NTSB GAA17CA369Accident · No injuriesData collectionFinal reportBell 206B · Entiat, WAThe pilot’s failure to secure a loose item inside the cockpit that interfered with antitorque pedal control and led to a loss of helicopter control due to a loss of tail rotor effectiveness.NTSB WPR17LA084Accident · Serious injuriesLimited investigationFinal reportCirrus Design SR22 · Brinnon, WAThe flight instructor's decision to fly into a valley without ensuring adequate clearance to avoid the rising terrain.NTSB WPR17LA014Accident · No injuriesLimited investigationFinal reportAerospatiale AS350 · Starbuck, WAA total loss of engine power due to fuel exhaustion, which resulted from the pilot’s reliance on the fuel gauge that was displaying an incorrect fuel amount due to the separation of the fuel transmitter float pin guide from the float.