NTSB investigations, AK
105 cases where the phase of flight was Unknown.
Cases per year
| 1963 | 1 |
|---|---|
| 1964 | 2 |
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 3 |
| 1968 | 5 |
| 1969 | 3 |
| 1970 | 3 |
| 1971 | 1 |
| 1975 | 2 |
| 1976 | 1 |
| 1977 | 1 |
| 1978 | 4 |
| 1979 | 5 |
| 1980 | 1 |
| 1981 | 3 |
| 1982 | 3 |
| 1983 | 3 |
| 1984 | 4 |
| 1985 | 2 |
| 1986 | 2 |
| 1987 | 1 |
| 1988 | 1 |
| 1989 | 2 |
| 1990 | 2 |
| 1991 | 1 |
| 1992 | 3 |
| 1993 | 2 |
| 1994 | 3 |
| 1996 | 3 |
| 1997 | 2 |
| 1998 | 4 |
| 1999 | 4 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 2 |
| 2004 | 1 |
| 2006 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2018 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 1 |
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\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 990)
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" = 'AK' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 990)
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 ANC26LA071Accident · Serious injuriesClass 4 · LimitedInvestigation openBellanca 7GCBC · Skwentna, AKNTSB ANC25FA035Accident · 2 fatalClass 3 · FieldPreliminary reportCessna T207 · Nanwalek, AKOn April 28, 2025, about 1355 Alaska daylight time, a Cessna T207 airplane, N91025, was substantially damaged when it was involved in an accident near Nanwalek, Alaska. The pilot and one passenger were fatally injured. One passenger was seriously injured. The…NTSB ANC25FA001Accident · 1 fatalClass 3 · FieldPreliminary reportCessna 180 · Big Lake, AKOn October 4, 2024, about 1730 Alaska daylight time, a float-equipped Cessna 180 airplane, N4631U, sustained substantial damage when it was involved in an accident near Big Lake, Alaska. The pilot was fatally injured, and one passenger sustained serious…NTSB ANC24FA091Accident · 2 fatalClass 3 · FieldPreliminary reportChampion 7GCBC · Ninilchik, AKOn September 13, 2024, about 0803 Alaska daylight time (AKDT), a Champion (Citabria) 7GCBC, N8CK, was substantially damaged when it was involved in an accident near Ninilchik, Alaska. The pilot and passenger were fatally injured. The airplane was operated as…NTSB ANC24FA085Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-18-150 · McGrath, AKThe pilot's exceedance of the airplane’s critical angle of attack while maneuvering for landing, which resulted in an aerodynamic stall and loss of control.NTSB ANC24FA052Accident · 2 fatalClass 3 · FieldPreliminary reportPiper PA-18-150 · Moose Pass, AKOn June 18, 2024, about 1400 Alaska daylight time, a float-equipped Piper PA-18-150 airplane, N645DT, was substantially damaged when it was involved in an accident near Moose Pass, Alaska. The instructor pilot and the pilot receiving instruction were fatally…NTSB ANC22LA020Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-18-135 · Wasilla, AKA partial loss of engine power for undetermined reasons.NTSB ANC21LA047Accident · No injuriesClass 3 · LimitedFinal reportPiper J3C-65 · Sterling, AKA partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR21LA164Accident · No injuriesClass 3 · LimitedFinal reportCessna 208B · Fairbanks, AKA partial loss of engine power for reasons that could not be determined based on available evidence.NTSB ANC18FA071Accident · 2 fatalField investigationFinal reportPiper PA-12-150 · Healy, AKAn impact with terrain for reasons that could not be determined based on the available information.NTSB ANC15FA032Accident · 1 fatalField investigationFinal reportCessna 207 · Bethel, AKThe pilot's failure to maintain altitude, which resulted in collision with the terrain. Contributing to the accident was the pilot's impairment from carbon monoxide exposure in flight. The source of the carbon monoxide could not be determined because the…NTSB ENG14IA016Incident · No injuriesIncident investigationFinal reportDouglas C 118A · Emmonak, AKThe fatigue failure of the lower wing skin due to aging mechanisms. Contributing to the failure were lower wing skin inspection procedures insufficient to identify the crack.NTSB ANC13FAMS2Accident · 1 fatalMissing aircraftFinal reportPiper PA-32-260 · Yakutat, AKUndetermined because the pilot and airplane were not found.NTSB ANC13FAMS1Accident · 1 fatalMissing aircraftFinal reportPiper PA-18-150 · Kenai, AKUndetermined. The airplane and pilot were not found.NTSB ANC10FA100Accident · 4 fatalField investigationFinal reportDehavilland DHC-2 · Katmai National Park, AKUndetermined.NTSB ANC09FAMS1Accident · 2 fatalMissing aircraftFinal reportBeech V35A · Northway, AKThe cause of this accident is unknown; the airplane is missing.NTSB ANC06FAMS1Accident · 3 fatalMissing aircraftFinal reportAero Commander 690A · Anchorage, AKUndetermined; the airplane and its occupants are missing.NTSB ANC04FAMS2Accident · 5 fatalMissing aircraftFinal reportde Havilland DHC-2 · Sitka, AKReason for occurrence is undetermined. The airplane is missing.NTSB ANC03FAMS1Accident · 2 fatalMissing aircraftFinal reportAlon A-2 (Aircoupe) · Ketchikan, AKUndetermined. .NTSB ANC03LA067Accident · 3 fatalLimited investigationFinal reportCessna 180 · Anchor Point, AKAn in-flight collision with water for an undetermined reason.NTSB ANC03LA022Accident · 1 fatalLimited investigationFinal reportCessna 180 · Petersburg, AKAn in flight collision with ocean water for an undetermined reason.NTSB ANC02FA070Accident · 2 fatalField investigationFinal reportZawada Super Cuby · Cantwell, AKThe pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall, and subsequent collision with terrain. A contributing factor was the pilot's impairment from the effects of prescription painkilling drugs.NTSB ANC01LA097Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Anchorage, AKThe loss of left brake pressure due to a missing hydraulic brake fitting.NTSB ANC01FA084Accident · 4 fatalField investigationFinal reportMaule M-5-235C · Bettles, AKThe pilot's inadvertent stall of the airplane during an unknown phase of flight.NTSB ANC01FAMS1Accident · 2 fatalMissing aircraftFinal reportChampion 8GCBC · Juneau, AKUndetermined. Missing airplane.NTSB ANC99FAMS2Accident · 1 fatalMissing aircraftFinal reportPiper PA-28R-200 · Chitina, AKUndetermined.NTSB ANC99LA105Accident · No injuriesLimited investigationFinal reportNix Avid Flyer · Chugiak, AKA loss of engine power for an undetermined reason.NTSB ANC99LA065Accident · 1 fatalLimited investigationFinal reportStinson 108 · Anchorage, AKUndetermined.NTSB ANC99FAMS1Accident · 2 fatalMissing aircraftFinal reportPiper PA-24-260 · Juneau, AKUndetermined. Missing aircraft.NTSB ANC98FA168Accident · 1 fatalField investigationFinal reportCessna TU-206G · Ketchikan, AKThe pilot's continued VFR flight into instrument meteorological conditions. Contributing factors were low ceilings and mountainous/hilly terrain.NTSB ANC98FA152Accident · 1 fatalField investigationFinal reportCessna 207 · Kotzebue, AKThe pilot's continued VFR flight into instrument meteorological conditions. Factors associated with the accident were low ceilings, mountainous/hilly terrain features, rain, and fog.NTSB ANC98FA043Accident · 1 fatalField investigationFinal reportTaylorcraft BL12 · Sitka, AKThe pilot's attempted VFR flight into instrument meteorological conditions. Contributing factors were clouds, the pilot's lack of instrument flight experience, obscuration and mountainous terrain.NTSB ANC98GA036Accident · 2 fatalFinal reportCessna 185F · Nightmute, AKThe pilot's continued VFR flight into instrument meteorological conditions which resulted in spatial disorientation and subsequent loss of aircraft control. Factors in the accident were meteorological conditions consisting of low ceilings, and blowing snow,…NTSB ANC98LA001Accident · 1 fatalLimited investigationFinal reportPiper PA-22-160 · Sterling, AKUndetermined.NTSB ANC97FAMS1Accident · 4 fatalMissing aircraftFinal reportCessna 182F · Talkeetna, AKUndetermined.NTSB ANC96FAMS1Accident · 2 fatalMissing aircraftFinal reportGrumman G21-G · Dutch Harbor, AKUndetermined.NTSB ANC96FA081Accident · 1 fatalField investigationFinal reportRobinson R-22 Mariner · Mekoryuk, AKA loss of engine power due to fuel contamination found in the fuel supply and helicopter fuel system. Factors in the accident were the pilot's inadequate filtration (servicing of the helicopter) of the fuel supply, and the pilot's inadequate performance of…NTSB ANC96FA079Accident · 2 fatalField investigationFinal reportRepublic RC-3 Seabee · Ketchikan, AKthe airplane crashed for undetermined reason(s).NTSB ANC95FAMS1Accident · 1 fatalMissing aircraftFinal reportCessna 206 · Kenai, AKUndetermined.NTSB ANC94LA133Accident · No injuriesLimited investigationFinal reportChampion 7ECA · Fairbanks, AKUndetermined.NTSB ANC94LA127Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Eagle, AKUndetermined.NTSB ANC93LA143Accident · 2 fatalLimited investigationFinal reportArtic S-1B2 · Johnson Glacier, AKThe pilot's attempted flight in an airplane which exceeded the maximum allowable weight. The high mountainous terrain was a factor.NTSB ANC93LA130Accident · 2 fatalLimited investigationFinal reportCessna 170 · Dry Bay, AKUndetermined.NTSB ANC93FA148Accident · 1 fatalField investigationFinal reportChampion 7EC · Chugiak, AKCollision with the terrain for an unknown reason.NTSB ANC92FAMS3Accident · 2 fatalMissing aircraftFinal reportBeech 35 · Missing, AKMissing aircraft due to undetermined causes and factorsNTSB ANC92FAMS2Accident · 5 fatalMissing aircraftFinal reportCessna 340 · Yakutat, AKMissing aircraft due to undetermined causes.NTSB ANC91LA043Accident · No injuriesLimited investigationFinal reportPiper PA-31T · Kenai, AKThe failed nose gear shimmy dampner, contributing to the accident was the rough ice and snow covered ramps where the airplane had been operating and the lack of maintenance on the runways.NTSB ANC91GAMS1Accident · 3 fatalFinal reportGulfstream Aerospace 690C · Deadhorse, AKMissing aircraft.NTSB ANC90LA143Accident · 2 fatalLimited investigationFinal reportPiper PA-18-150 · Aniak, AKPilot lost control of the airplane as a result of encountering severe weather either during takeoff or landing. Contributing to the accident was the severe weather, rough water surface, and self-induced pressure to fly by the pilot.NTSB ANC89FA144Accident · 2 fatalField investigationFinal reportPiper PA-12 · Windy Fork, AKFailure of the pilot to maintain airspeed while operating to or from the gravel bar, which resulted in an inadvertent stall. The rising terrain was considered a contributing factor.