NTSB investigations, 1971

541 cases where the phase of flight was Initial climb.

Cases per year

19622026
NTSB investigations, 1971 per year, 1962–2026: 20,559 cases
19623
19634
1964505
1965555
1966582
1967587
1968577
1969582
1970552
1971541
1972507
1973482
1974556
1975543
1976521
1977556
1978566
1979502
1980505
1981499
1982490
1983507
1984466
1985418
1986394
1987380
1988368
1989348
1990351
1991324
1992306
1993307
1994292
1995289
1996244
1997272
1998266
1999239
2000221
2001219
2002200
2003227
2004210
2005204
2006180
2007202
2008212
2009173
2010162
2011177
2012193
2013122
2014130
2015165
2016141
2017149
2018155
2019146
2020112
2021166
2022161
2023163
2024143
2025134
2026106

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 year(c.\"eventDate\") = 1971
    AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
  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 MIA72FKW12Accident · Serious injuriesClosedCessna 140 · Knoxville, TNDec 31, 1971 · N76180 · DestroyedNTSB ANC72AA033Accident · Minor injuriesClosedHelio H-250 · Lttl Diomede, AKDec 30, 1971 · N8868E · Substantial damageNTSB FTW72FRA27Accident · No injuriesClosedCessna 310 · Tomball, TXDec 27, 1971 · N5307A · Substantial damageNTSB FTW72DPG58Accident · No injuriesClosedCessna 150 · Heth, ARDec 27, 1971 · N61242 · Substantial damageNTSB MIA72FLA23Accident · Minor injuriesClosedCessna 177 · Carrabelle, FLDec 24, 1971 · N2393Y · Substantial damageNTSB MIA72FKT36Accident · No injuriesClosedCallair A-9B · W Palm Beach, FLDec 24, 1971 · N7992V · Substantial damageNTSB MIA72FKQ27Accident · No injuriesClosedHiller Acft FH1100 · Hattiesburg, MSDec 22, 1971 · N5035F · Substantial damageNTSB FTW72AF039Accident · 1 fatalClosedCessna 172 · Seguin, TXDec 22, 1971 · N3941L · DestroyedNTSB OAK72FVA38Accident · No injuriesClosedCessna 150 · Selma, CADec 21, 1971 · N6684G · Substantial damageNTSB ANC72FAG82Accident · No injuriesClosedCessna 180 · Northway, AKDec 19, 1971 · N6538A · Substantial damageNTSB CHI72AC052Accident · 1 fatalClosedPiper PA-22 · Evansville, INDec 16, 1971 · N8641C · DestroyedNTSB SEA72DYG21Accident · Minor injuriesClosedBeech 23 · Pullman, WADec 11, 1971 · N7608R · Substantial damageNTSB NYC72FGM24Accident · No injuriesClosedCessna 182K · Sharon, PADec 11, 1971 · N2742Q · Substantial damageNTSB FTW72AF033Accident · 7 fatalClosedBeech 65-80 · Okla.City, OKDec 9, 1971 · N252Q · DestroyedNTSB NYC72FNC16Accident · No injuriesClosedPiper J3C-65 · East Dixfield, MEDec 5, 1971 · N98462 · Substantial damageNTSB UNK72X0101Accident · Minor injuriesClosedLake LA-4 · Seoul, KSDec 2, 1971 · N7612L · DestroyedNTSB FTW72FPM16Accident · No injuriesClosedLuscombe 8A · Cleveland, OKNov 30, 1971 · N1561K · Substantial damageNTSB MIA72FKQ26Accident · No injuriesClosedCessna 175 · Duck Hill, MSNov 28, 1971 · N9259B · Substantial damageNTSB ANC72DAG77Accident · No injuriesClosedPiper J5A · Anchorage, AKNov 27, 1971 · N35408 · Substantial damageNTSB CHI72FEG24Accident · No injuriesClosedPiper PA-23 · Lebanon, OHNov 26, 1971 · N4175P · Substantial damageNTSB NYC72FHD22Accident · Minor injuriesClosedMooney M20F · Vineland, NJNov 24, 1971 · N9652M · Substantial damageNTSB CHI72FEI23Accident · No injuriesClosedHelio Acft H-295 · Medina, OHNov 24, 1971 · N6469V · Substantial damageNTSB ANC72AA023Accident · No injuriesClosedPiper PA-28 · Iliamna, AKNov 24, 1971 · N7311W · Substantial damageNTSB NYC72FHD21Accident · No injuriesClosedCessna 182J · Williamstown, NJNov 21, 1971 · N2733F · Substantial damageNTSB MKC72FER30Accident · Serious injuriesClosedPiper PA-18 · Gilman, MNNov 21, 1971 · N4316Z · Substantial damageNTSB ANC72AA022Accident · 4 fatalClosedCessna 170B · Kotzebue, AKNov 21, 1971 · N3455D · DestroyedNTSB OAK72DVA47Accident · No injuriesClosedErco 415-C · Merced, CANov 20, 1971 · N2601H · Substantial damageNTSB LAX72DUJ58Accident · Minor injuriesClosedPiper J3C-65 · Pearce, AZNov 20, 1971 · N70524 · DestroyedNTSB DEN72DTE44Accident · Minor injuriesClosedCessna 172 · Fountain, CONov 20, 1971 · N4339Q · Substantial damageNTSB ANC72AA024Accident · 1 fatalClosedChampion 7GCBC · Prescott, AZNov 20, 1971 · N9002L · DestroyedNTSB ANC72FAG76Accident · No injuriesClosedPiper PA-28 · Naknek, AKNov 18, 1971 · N257W · Substantial damageNTSB MIA72AM045Accident · 4 fatalClosedPiper PA-31 · Iuka, MSNov 17, 1971 · N780JM · DestroyedNTSB ANC72AA021Accident · No injuriesClosedCessna 180H · Gulkana, AKNov 16, 1971 · N2757X · Substantial damageNTSB MIA72FKG55Accident · Minor injuriesClosedPiper PA-22 · Wrens, GANov 14, 1971 · N884A · Substantial damageNTSB SEA72DYC23Accident · No injuriesClosedCessna 175 · Condon, ORNov 13, 1971 · N7095M · Substantial damageNTSB ANC72FAA21Accident · No injuriesClosedCessna 170B · Livengood, AKNov 13, 1971 · N2313D · Substantial damageNTSB CHI72DEG23Accident · No injuriesClosedBeech A24R · Jamestown, OHNov 12, 1971 · N104GD · Substantial damageNTSB MKC72FCJ36Accident · Minor injuriesClosedPiper PA-22 · Nehawka, NENov 10, 1971 · N2304P · DestroyedNTSB CHI72FEP21Accident · Serious injuriesClosedLuscombe 8A · Stevens Pt., WINov 10, 1971 · N45431 · Substantial damageNTSB NYC72IN064Incident · No injuriesClosedBoeing 747 · Jamaica, NYNov 8, 1971 · N735PA · Substantial damageNTSB MIA72AM042Accident · 2 fatalClosedPiper PA-22 · Watkinsville, GANov 7, 1971 · N5443Z · DestroyedNTSB FTW72FRD16Accident · No injuriesClosedBoeing E75N1 · Elton, LANov 7, 1971 · N4874N · Substantial damageNTSB FTW72FPM13Accident · No injuriesClosedBeech A23A · Maramec, OKNov 7, 1971 · N6942Q · Substantial damageNTSB FTW72FPM12Accident · Minor injuriesClosedStinson 108-1 · Calera, OKNov 7, 1971 · N97441 · Substantial damageNTSB CHI72FEE43Accident · No injuriesClosedCessna 310H · Elgin, ILNov 7, 1971 · N7171L · DestroyedNTSB LAX72FUG32Accident · Serious injuriesClosedCessna 150 · Riverside, CANov 3, 1971 · N3027J · DestroyedNTSB CHI72AC042Accident · No injuriesClosedBeech 99 · Cleveland, OHNov 3, 1971 · N1031S · Substantial damageNTSB MIA72DKT26Accident · No injuriesClosedPiper PA-25 · Ft Myers, FLNov 1, 1971 · N6976Z · Substantial damageNTSB NYC72FGM21Accident · Minor injuriesClosedPiper PA-22 · Somerset, PAOct 30, 1971 · N7423D · Substantial damageNTSB LAX72FUG30Accident · Minor injuriesClosedPiper PA-24 · El Monte, CAOct 30, 1971 · N5795P · Substantial damage