NTSB investigations, AK

105 cases where the phase of flight was Unknown.

Cases per year

19632026
NTSB investigations, AK per year, 1963–2026: 105 cases
19631
19642
19651
19662
19673
19685
19693
19703
19711
19752
19761
19771
19784
19795
19801
19813
19823
19833
19844
19852
19862
19871
19881
19892
19902
19911
19923
19932
19943
19963
19972
19984
19994
20001
20012
20022
20032
20041
20061
20091
20101
20121
20131
20141
20151
20181
20212
20221
20244
20251
20261

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.

NTSB ANC26LA071Accident · Serious injuriesClass 4 · LimitedInvestigation openBellanca 7GCBC · Skwentna, AKJul 11, 2026 · N11647 · Substantial damageNTSB 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…Apr 28, 2025 · N91025 · Substantial damageNTSB 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…Oct 5, 2024 · N4631U · Substantial damageNTSB 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…Sep 13, 2024 · N8CK · Substantial damageNTSB 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.Aug 31, 2024 · N7154Z · Substantial damageNTSB 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…Jun 18, 2024 · N645DT · Substantial damageNTSB ANC22LA020Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-18-135 · Wasilla, AKA partial loss of engine power for undetermined reasons.Feb 27, 2022 · N99640 · Substantial damageNTSB 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.Jun 28, 2021 · N98109 · Substantial damageNTSB 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.Apr 3, 2021 · N215MC · Substantial damageNTSB 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.Sep 23, 2018 · N7511H · Substantial damageNTSB 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…May 30, 2015 · N1653U · Substantial damageNTSB 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.Feb 25, 2014 · N351CE · Minor damageNTSB ANC13FAMS2Accident · 1 fatalMissing aircraftFinal reportPiper PA-32-260 · Yakutat, AKUndetermined because the pilot and airplane were not found.Sep 9, 2013 · N3705W · DestroyedNTSB ANC13FAMS1Accident · 1 fatalMissing aircraftFinal reportPiper PA-18-150 · Kenai, AKUndetermined. The airplane and pilot were not found.Oct 13, 2012 · N444LZ · DestroyedNTSB ANC10FA100Accident · 4 fatalField investigationFinal reportDehavilland DHC-2 · Katmai National Park, AKUndetermined.Aug 21, 2010 · N9313Z · Substantial damageNTSB ANC09FAMS1Accident · 2 fatalMissing aircraftFinal reportBeech V35A · Northway, AKThe cause of this accident is unknown; the airplane is missing.Jun 21, 2009 · N7062N · Substantial damageNTSB ANC06FAMS1Accident · 3 fatalMissing aircraftFinal reportAero Commander 690A · Anchorage, AKUndetermined; the airplane and its occupants are missing.Jul 29, 2006 · N57096 · DestroyedNTSB ANC04FAMS2Accident · 5 fatalMissing aircraftFinal reportde Havilland DHC-2 · Sitka, AKReason for occurrence is undetermined. The airplane is missing.Sep 20, 2004 · N712TS · DestroyedNTSB ANC03FAMS1Accident · 2 fatalMissing aircraftFinal reportAlon A-2 (Aircoupe) · Ketchikan, AKUndetermined. .Aug 17, 2003 · N6520Q · DestroyedNTSB ANC03LA067Accident · 3 fatalLimited investigationFinal reportCessna 180 · Anchor Point, AKAn in-flight collision with water for an undetermined reason.Jun 25, 2003 · N91303 · DestroyedNTSB ANC03LA022Accident · 1 fatalLimited investigationFinal reportCessna 180 · Petersburg, AKAn in flight collision with ocean water for an undetermined reason.Dec 13, 2002 · N9701G · DestroyedNTSB 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.Jul 4, 2002 · N43Z · Substantial damageNTSB ANC01LA097Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Anchorage, AKThe loss of left brake pressure due to a missing hydraulic brake fitting.Aug 2, 2001 · N7775H · Substantial damageNTSB ANC01FA084Accident · 4 fatalField investigationFinal reportMaule M-5-235C · Bettles, AKThe pilot's inadvertent stall of the airplane during an unknown phase of flight.Jul 15, 2001 · N9237E · Substantial damageNTSB ANC01FAMS1Accident · 2 fatalMissing aircraftFinal reportChampion 8GCBC · Juneau, AKUndetermined. Missing airplane.Dec 27, 2000 · N7100C · DestroyedNTSB ANC99FAMS2Accident · 1 fatalMissing aircraftFinal reportPiper PA-28R-200 · Chitina, AKUndetermined.Aug 18, 1999 · N56877 · DestroyedNTSB ANC99LA105Accident · No injuriesLimited investigationFinal reportNix Avid Flyer · Chugiak, AKA loss of engine power for an undetermined reason.Jul 18, 1999 · UNREG · Substantial damageNTSB ANC99LA065Accident · 1 fatalLimited investigationFinal reportStinson 108 · Anchorage, AKUndetermined.May 24, 1999 · N793C · DestroyedNTSB ANC99FAMS1Accident · 2 fatalMissing aircraftFinal reportPiper PA-24-260 · Juneau, AKUndetermined. Missing aircraft.May 2, 1999 · N8694P · DestroyedNTSB 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.Sep 29, 1998 · N4820U · DestroyedNTSB 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.Sep 17, 1998 · N1809Q · DestroyedNTSB 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.Apr 28, 1998 · N33902 · DestroyedNTSB 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,…Apr 9, 1998 · N5485R · DestroyedNTSB ANC98LA001Accident · 1 fatalLimited investigationFinal reportPiper PA-22-160 · Sterling, AKUndetermined.Oct 3, 1997 · N8955D · DestroyedNTSB ANC97FAMS1Accident · 4 fatalMissing aircraftFinal reportCessna 182F · Talkeetna, AKUndetermined.Jun 29, 1997 · N3186U · DestroyedNTSB ANC96FAMS1Accident · 2 fatalMissing aircraftFinal reportGrumman G21-G · Dutch Harbor, AKUndetermined.Aug 12, 1996 · N660PA · DestroyedNTSB 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…Jun 4, 1996 · N113CF · DestroyedNTSB ANC96FA079Accident · 2 fatalField investigationFinal reportRepublic RC-3 Seabee · Ketchikan, AKthe airplane crashed for undetermined reason(s).May 25, 1996 · N99FJ · DestroyedNTSB ANC95FAMS1Accident · 1 fatalMissing aircraftFinal reportCessna 206 · Kenai, AKUndetermined.Dec 3, 1994 · N5282U · Substantial damageNTSB ANC94LA133Accident · No injuriesLimited investigationFinal reportChampion 7ECA · Fairbanks, AKUndetermined.Sep 10, 1994 · N68522 · Substantial damageNTSB ANC94LA127Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Eagle, AKUndetermined.Jul 30, 1994 · N3849M · Substantial damageNTSB 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.Jul 31, 1993 · N59AT · DestroyedNTSB ANC93LA130Accident · 2 fatalLimited investigationFinal reportCessna 170 · Dry Bay, AKUndetermined.Jul 30, 1993 · N8190A · DestroyedNTSB ANC93FA148Accident · 1 fatalField investigationFinal reportChampion 7EC · Chugiak, AKCollision with the terrain for an unknown reason.Oct 9, 1992 · N8958R · DestroyedNTSB ANC92FAMS3Accident · 2 fatalMissing aircraftFinal reportBeech 35 · Missing, AKMissing aircraft due to undetermined causes and factorsAug 17, 1992 · N216JB · DestroyedNTSB ANC92FAMS2Accident · 5 fatalMissing aircraftFinal reportCessna 340 · Yakutat, AKMissing aircraft due to undetermined causes.May 4, 1992 · N69469 · DestroyedNTSB 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.Mar 31, 1991 · N308SC · Substantial damageNTSB ANC91GAMS1Accident · 3 fatalFinal reportGulfstream Aerospace 690C · Deadhorse, AKMissing aircraft.Oct 12, 1990 · N45Q · DestroyedNTSB 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.Aug 12, 1990 · N3946Z · Substantial damageNTSB 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.Aug 13, 1989 · N7542H · Destroyed