NTSB investigations, 1999

23 cases where the phase of flight was Unknown.

Cases per year

19622026
NTSB investigations, 1999 per year, 1962–2026: 1,978 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
202271
202340
202460
202573
2026219

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\") = 1999
    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 CHI00LA043Accident · 2 fatalLimited investigationFinal reportMcCarty Wittman W-8 Tailwind · Jamestown, NDthe wing spar failure due to its inadequate construction by the owner/builder.Dec 12, 1999 · N654 · DestroyedNTSB CHI00LA034Accident · No injuriesLimited investigationFinal reportTaylorcraft F-21 · Houlton, WIthe mechanic failed to torque the rod cap bolt during the major engine overhaul. Factors relating to the accident included the rough field and the collapsed landing gear.Dec 1, 1999 · N2005J · Substantial damageNTSB CHI00LA038Accident · No injuriesLimited investigationFinal reportCessna 310Q · Moline, ILthe landing gear locking mechanism was not properly locked. Factors relating to this accident were the improper rigging of the gear and the runway marker.Nov 26, 1999 · N7762Q · Substantial damageNTSB CHI00FAMS1Accident · 1 fatalMissing aircraftFinal reportCessna 175 · MIundetermined.Nov 12, 1999 · N6533E · DestroyedNTSB MIA00LA013Accident · No injuriesLimited investigationFinal reportBritish Aerospace HS 125-700A · Fayetteville, NCThe overstress failure of the lugs of the cylinder head of the left main landing gear jack for undetermined reasons. Also, inability of the flight crew to extend the left main landing gear.Oct 19, 1999 · N34GG · Substantial damageNTSB MIA00LA012Accident · No injuriesLimited investigationFinal reportBeech D35 · Indiantown, FLThe reported unauthorized use of the airplane by an unknown person.Oct 16, 1999 · N2109D · Substantial damageNTSB FTW00LA006Accident · 1 fatalLimited investigationFinal reportWSK PZL Mielec M18 · Weldon, ARThe cause of the accident was undetermined.Oct 5, 1999 · N4779G · DestroyedNTSB SEA99LA149Accident · 1 fatalLimited investigationFinal reportBell 47G-2 · Benton City, WAA loss of power for undetermined reasons and the failure of the pilot to maintain adequate rotor RPM following the power loss. Contributing factors were the pilot's lack of certification and total experience.Aug 26, 1999 · N11VH · DestroyedNTSB ANC99FAMS2Accident · 1 fatalMissing aircraftFinal reportPiper PA-28R-200 · Chitina, AKUndetermined.Aug 18, 1999 · N56877 · DestroyedNTSB ATL99LA117Accident · No injuriesLimited investigationFinal reportQuicksilver GT-500 · Ormond Beach, FLThe in-flight collision with an object for an undetermined reasons. A factor was the stolen/unauthorized use of the airplane.Aug 13, 1999 · N5503M · Substantial damageNTSB CHI99FA267Accident · 1 fatalField investigationFinal reportAir Tractor AT502B · Giltner, NEThe pilot's inadequate visual lookout, and his failure to maintain clearance from the guy wire. A factor was the guy wire.Jul 30, 1999 · N5008Z · DestroyedNTSB ANC99LA105Accident · No injuriesLimited investigationFinal reportNix Avid Flyer · Chugiak, AKA loss of engine power for an undetermined reason.Jul 18, 1999 · UNREG · Substantial damageNTSB SEA99FA113Accident · 1 fatalField investigationFinal reportAlexander VAN'S RV-8 · Lafayette, ORFatigue of the number two connecting rod end resulting in a fracture at the rod end and release from the crankshaft, an ensuing in-flight fuel fed fire, followed by the pilot's abandoning the aircraft in flight. A contributing factor was pressure on the pilot…Jul 10, 1999 · N41VA · DestroyedNTSB MIA99LA194Accident · Minor injuriesLimited investigationFinal reportCessna 177RG · Jasper, ALthe pilot inadvertently became disoriented and misjudged his position on the runway/airport, which resulted in him turning the airplane too soon, and subsequently impacting with a tree. Factors in this accident were a loss of electrical power for undetermined…Jul 10, 1999 · N2619V · Substantial damageNTSB CHI99LA207Accident · No injuriesLimited investigationFinal reportPiper J-3C · Independence, IAThe insufficient information from the weather forecast resulting in an in-flight encounter with turbulence/gusts and the subsequent precautionary landing. Contributing factors were the gusty/turbulent conditions and the terrain condition (crop).Jul 2, 1999 · N3371N · Substantial damageNTSB SEA99LA081Accident · 1 fatalLimited investigationFinal reportD. Wayne Smith Wayncraft 14 · Libby, MTCollision with terrain for undetermined reasons.Jun 6, 1999 · N58WS · Substantial damageNTSB FTW99FA150Accident · 1 fatalField investigationFinal reportGrumman-Schweizer G164-B · Brinkley, ARThe pilot's inadvertent VFR flight into instrument meteorological conditions. Contributing factors were the pilots failure to maintain control of the aircraft, spatial disorientation, and the fog.May 26, 1999 · N8285K · DestroyedNTSB ANC99LA065Accident · 1 fatalLimited investigationFinal reportStinson 108 · Anchorage, AKUndetermined.May 24, 1999 · N793C · DestroyedNTSB SEA99LA063Accident · No injuriesLimited investigationFinal reportLake LA-4 · Coeur D'Alene, IDThe fatigue failure of a repair weld on one of the engine pylon mount straps and the resultant reduction in directional control. Factors include an inadequate repair of the strap, variable wind speeds and sudden wind shifts.May 15, 1999 · N152WB · Substantial damageNTSB ANC99FAMS1Accident · 2 fatalMissing aircraftFinal reportPiper PA-24-260 · Juneau, AKUndetermined. Missing aircraft.May 2, 1999 · N8694P · DestroyedNTSB CHI99FA129Accident · 2 fatalField investigationFinal reportCessna 152 · Superior, WIthe Certified Flight Instructor failed to maintain control of the airplane.Apr 14, 1999 · N4611B · DestroyedNTSB SEA99LA043Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-140 · Rexburg, IDA loss of engine power for undetermined reasons.Mar 13, 1999 · N9578W · Substantial damageNTSB FTW99LA086Accident · 1 fatalLimited investigationFinal reportKeil Jaeger D-IX · Santa Fe, TXThe separation of the right upper aileron for an undetermined reason.Feb 28, 1999 · N257JK · Destroyed