NTSB investigations, 1997

16 cases where the phase of flight was Unknown.

Cases per year

19622026
NTSB investigations, 1997 per year, 1962–2026: 1,976 cases
19621
19631
196429
196526
196636
196748
196859
196931
197033
197122
197230
197328
197427
197540
197615
197730
197838
197941
198030
198127
198251
198346
198447
198541
198618
198723
198824
198920
199025
199115
199222
199322
199412
199513
199619
199716
199820
199923
200013
200118
20029
200312
20046
200511
20067
200710
20087
200910
201020
201116
201219
201314
201425
201527
201635
201737
201845
201926
202039
202160
202272
202340
202460
202573
2026216

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\") = 1997
    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 LAX98FA064Accident · 1 fatalField investigationFinal reportPiper PA-11 · Willow Beach, AZThe pilot's failure to maintain control of the aircraft for undetermined reasons.Dec 30, 1997 · N5532H · DestroyedNTSB CHI98LA126Accident · 1 fatalLimited investigationFinal reportCessna 177 · Ft. Leonardwood, MOThe pilot's failure to maintain adequate obstacle clearance and his inadequate inflight decision which resulted in VFR flight in to instrument meteorological conditions. The pilot's overconfidence in his ability is a contributing factor.Dec 29, 1997 · N30255 · DestroyedNTSB MIA98FAMS1Accident · 2 fatalMissing aircraftFinal reportBeech G35 · Missingundetermined.Dec 3, 1997 · N4404D · DestroyedNTSB ANC98LA001Accident · 1 fatalLimited investigationFinal reportPiper PA-22-160 · Sterling, AKUndetermined.Oct 3, 1997 · N8955D · DestroyedNTSB MIA97FA248Accident · 2 fatalField investigationFinal reportBell 47G · Saluda, SCin-flight collision with a tree, for undetermined reason(s).Sep 19, 1997 · N70747 · DestroyedNTSB CHI97FA308Accident · 2 fatalField investigationFinal reportPiper PA-28-235 · St. Ignaces, MIThe noninstrument-rated pilot's improper decision to depart in instrument meteorological conditions, which resulted in impact with terrain.Sep 14, 1997 · N9399W · DestroyedNTSB CHI97FA248Accident · 1 fatalField investigationFinal reportValley Adventurers Adventurer 333 · Fond Du Lac, WIThe kit manufacturer's use of inadequate material in construction of the airplane, his inadequate application of quality controls resulting in the debonding of the horizontal stabilizer. Factors were the total loss of the horizontal stabilizer, the elevator,…Aug 5, 1997 · N323VA · DestroyedNTSB MIA97IA206Incident · No injuriesIncident investigationFinal reportMcDonnell Douglas DC-8-61 · Miami, FLfailure of the right main landing gear cylinder due to stress corrosion.Jul 5, 1997 · N27UA · Minor damageNTSB SEA97LA157Accident · No injuriesLimited investigationFinal reportCessna 172M · UTUndetermined.Jul 1, 1997 · N4395R · Substantial damageNTSB MIA97LA202Accident · 1 fatalLimited investigationFinal reportDFL Holdings Tango · Keystone, FLan in-flight loss of control for undetermined reasons.Jul 1, 1997 · N772T · DestroyedNTSB ANC97FAMS1Accident · 4 fatalMissing aircraftFinal reportCessna 182F · Talkeetna, AKUndetermined.Jun 29, 1997 · N3186U · DestroyedNTSB SEA97FA148Accident · 2 fatalField investigationFinal reportBeech 77 · Cottage Grove, ORFuel exhaustion resulting from the pilot's inadequate preflight planning/preparation and his failure to maintain adequate airspeed during a forced landing approach, resulting in a stall. A related factor was the pilot's failure to refuel.Jun 21, 1997 · N6630C · Substantial damageNTSB CHI97LA163Accident · 1 fatalLimited investigationFinal reportSiefert 5151RG · Shelbyville, INthe cause of the accident is undetermined.Jun 10, 1997 · N81728 · DestroyedNTSB CHI97FAMS2Accident · 2 fatalMissing aircraftFinal reportBeech 95-C55 · Grand Haven, MIundetermined.Apr 21, 1997 · N242BS · DestroyedNTSB MIA97LA125Accident · No injuriesLimited investigationFinal reportMcDonnell Douglas DC10-30F · Memphis, TNA stall buffet or a high speed buffet event which occurred at an undetermined time.Apr 9, 1997 · N310FE · Substantial damageNTSB LAX97FAMS2Accident · 1 fatalMissing aircraftFinal reportPiper PA-28-161 · Avalon, CAundetermined.Feb 11, 1997 · N8436X · Destroyed