NTSB investigations, AK

73 cases where the phase of flight was Uncontrolled descent.

Cases per year

19642026
NTSB investigations, AK per year, 1964–2026: 73 cases
19643
19657
19664
19671
19685
19694
19702
19713
19724
19735
19741
19755
19764
19773
19785
19794
19805
19813
19831
19901
19922
20111

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 = 650)
  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 ANC11CA058Accident · Serious injuriesData collectionFinal reportAviat A-1B · Palmer, AKThe pilot's decision to fly at a low altitude in mountainous terrain and weather conditions conducive to downdrafts.Jul 6, 2011 · N949AK · Substantial damageNTSB ANC92LA112Accident · Serious injuriesLimited investigationFinal reportPiper J3C-65 · Cloudy Lake, AKThe pilot failed to enter an aerobatic maneuver with sufficient altitude to effect a recovery prior to ground impact.Jul 28, 1992 · N21375 · Substantial damageNTSB ANC92LA038Accident · Serious injuriesLimited investigationFinal reportCessna 180 · Shishmaref, AKThe non-instrumented rated pilot-in-command attempted visual flight into known instrument meteorological conditions. Factors contributing to the accident were the fog, the icing conditions, and the pilot's over confidence in his personal ability.Feb 14, 1992 · N2788X · Substantial damageNTSB ANC90LA112Accident · 1 fatalLimited investigationFinal reportPiper PA-28-180 · Coldfoot, AKThe airplane encountered a downdraft shortly after takeoff from which the airplane could not overcome with power. Contributing to the accident was the heavily loaded airplane and the engine not developing full power due to improper maintenance.Jul 5, 1990 · N6374J · DestroyedNTSB ANC83FA161Accident · 3 fatalField investigationFinal reportBellanca 7GCBC · Kasilof, AKThe acft crashed in a vertical nose down attitude a short distance from the plt's private airstrip. According to relatives the plt was taking his girl friend's 2 children for a short flt. Investigation revealed the plt's last known medical certificate was…Sep 5, 1983 · N88374 · Substantial damageNTSB ANC81FA093Accident · Serious injuriesClosedDehavilland DHC-2 · Ketchikan, AKAug 7, 1981 · N31618 · DestroyedNTSB ANC81FAA22Accident · Minor injuriesClosedPiper PA-22 · Hess Creek, AKAug 2, 1981 · N8728D · Substantial damageNTSB ANC81FA085Accident · 2 fatalClosedMooney M20K · Talkeetna, AKJul 28, 1981 · N231PY · DestroyedNTSB ANC81DAA05Accident · Minor injuriesClosedCessna 150 · Gold King Crk, AKNov 1, 1980 · N496RA · Substantial damageNTSB ANC80FA102Accident · 2 fatalClosedPiper PA-18 · Anchorage, AKSep 21, 1980 · N21AA · DestroyedNTSB ANC80FA084Accident · 1 fatalClosedPiper PA-18 · Cordova, AKAug 13, 1980 · N2487H · DestroyedNTSB ANC80FA043Accident · 1 fatalClosedCessna 185F · Anchorage, AKMay 4, 1980 · N93130 · DestroyedNTSB ANC80FA030Accident · 2 fatalClosedCessna 172M · Homer, AKFeb 12, 1980 · N1384U · DestroyedNTSB ANC80FA015Accident · 1 fatalClosedBell 47G3B1 · Farewell, AKNov 24, 1979 · N73249 · Substantial damageNTSB ANC80FA012Accident · 1 fatalClosedPiper PA-20 · Palmer, AKNov 15, 1979 · N9710D · Substantial damageNTSB ANC80FA001Accident · 3 fatalClosedCessna 207 · Juneau, AKOct 3, 1979 · N1726U · DestroyedNTSB ANC79FA035Accident · 2 fatalClosedMaule M-4 · Eureka Lodge, AKJan 24, 1979 · N2076U · Substantial damageNTSB ANC79DA015Accident · 3 fatalClosedGrumman G-44A · Cordova, AKOct 31, 1978 · N444W · DestroyedNTSB ANC78FA082Accident · 1 fatalClosedAeronca 7EC · Fairbanks, AKSep 15, 1978 · N4739E · DestroyedNTSB ANC78DA064Accident · Serious injuriesClosedDehavilland DHC-2 · Kenai, AKAug 11, 1978 · N5319G · Substantial damageNTSB ANC78FA028Accident · 2 fatalClosedBell 206B · Lonely, AKApr 16, 1978 · N49757 · DestroyedNTSB ANC78FA023Accident · 3 fatalClosedEvangel 4500 · Merrill Pass, AKFeb 27, 1978 · N4508L · DestroyedNTSB ANC78DAG17Accident · Serious injuriesClosedCessna 185D · Mt.Susitna, AKDec 27, 1977 · N1553F · Substantial damageNTSB ANC78FA005Accident · 2 fatalClosedHiller Acft FH1100 · Anchor Point, AKDec 19, 1977 · N18845 · DestroyedNTSB ANC77FA019Accident · 1 fatalClosedPiper PA-18 · Kaktovik, AKJan 2, 1977 · N7199Z · Substantial damageNTSB ANC76AA088Accident · 6 fatalClosedPiper PA-34 · Petersburg, AKMay 18, 1976 · N55951 · DestroyedNTSB ANC76AA074Accident · 4 fatalClosedCessna 207 · Igiugig, AKMar 7, 1976 · N91142 · DestroyedNTSB ANC76AA064Accident · 2 fatalClosedS.N.A.I.S. SA341G · Circle, AKJan 30, 1976 · N62176 · DestroyedNTSB ANC76AA059Accident · Serious injuriesClosedBell 206B · Kenai, AKJan 4, 1976 · N59481 · Substantial damageNTSB ANC76AA054Accident · 1 fatalClosedBellanca 7GCBC · Bettles, AKDec 18, 1975 · N5137T · DestroyedNTSB ANC76AA053Accident · 1 fatalClosedBellanca 8GCBC · Fairbanks, AKDec 17, 1975 · N88328 · Substantial damageNTSB ANC76AA047Accident · 3 fatalClosedCessna 185 · Anchorage, AKNov 9, 1975 · N9874X · DestroyedNTSB ANC76AA035Accident · 2 fatalClosedPiper PA-20 · Talkeetna, AKSep 14, 1975 · N6965K · DestroyedNTSB ANC76AA021Accident · 2 fatalClosedHiller Acft UH-12E · Painter Creek, AKAug 11, 1975 · N5379V · DestroyedNTSB ANC74AA066Accident · 1 fatalClosedCessna A185E · Scammon Bay, AKApr 8, 1974 · N2249T · DestroyedNTSB ANC74AA047Accident · 3 fatalClosedCessna 180C · Anchorage, AKNov 23, 1973 · N4669S · DestroyedNTSB ANC74AA035Accident · 2 fatalClosedCessna 150L · Birchwood, AKSep 18, 1973 · N5352Q · DestroyedNTSB ANC74AA032Accident · 2 fatalClosedGlobe GC-1B · Eureka Lodge, AKSep 15, 1973 · N3822K · DestroyedNTSB ANC74AA020Accident · 2 fatalClosedPiper PA-18 · Anaktuvuk Ps, AKAug 10, 1973 · N1372C · Substantial damageNTSB ANC73AA039Accident · 2 fatalClosedCessna 180H · Kasigluk, AKJan 31, 1973 · N9929V · DestroyedNTSB ANC73AAO32Accident · 2 fatalClosedPiper PA-18A · Portage, AKNov 4, 1972 · N7287D · DestroyedNTSB ANC72AA047Accident · 1 fatalClosedPiper PA-18A · Arctc Villge, AKMay 22, 1972 · N8556C · DestroyedNTSB ANC72AA043Accident · 2 fatalClosedMaule M4220C · Cordova, AKApr 25, 1972 · N2043U · DestroyedNTSB ANC72AA038Accident · 1 fatalClosedHiller Acft FH1100 · Valdez, AKMar 9, 1972 · N440FH · DestroyedNTSB ANC72AA030Accident · 1 fatalClosedCessna 180 · Anchorage, AKDec 4, 1971 · N7692A · DestroyedNTSB ANC72FAA03Accident · No injuriesClosedPiper PA-20 · Fort Yukon, AKJul 20, 1971 · N1506A · Substantial damageNTSB ANC71AA056Accident · 2 fatalClosedSud Aviatn SA318C · Anaktvk Pass, AKMay 12, 1971 · N9222 · DestroyedNTSB ANC71AA031Accident · 2 fatalClosedMaule M4-210 · Anchorage, AKDec 6, 1970 · N9829M · DestroyedNTSB ANC70AA053Accident · 1 fatalClosedCessna 180 · Karluk, AKJan 4, 1970 · N3143D · DestroyedNTSB ANC70A0048Accident · 2 fatalClosedPiper PA-12 · Juneau, AKDec 21, 1969 · N3013M · Substantial damage