Major NTSB investigations, 2011

180,610 investigations by the National Transportation Safety Board since 1962: 174,589 accidents, the rest incidents and other occurrences. Each has NTSB’s narrative and, once the investigation is done, its probable cause; since 2008, its findings and sequence of events.

Cases per year

19622026
Major NTSB investigations, 2011 per year, 1962–2026: 654 cases
19685
196913
197012
197112
197211
197310
19749
197511
19768
19777
197810
197911
19809
198111
19829
198319
198425
198531
198648
198730
198817
198924
199012
199114
199211
199314
199416
19957
199612
199710
19987
19998
200014
200113
20026
200310
200417
200518
200611
200712
200815
20098
20105
20119
20121
20139
20144
20156
20164
20174
20183
201911
20201
20211
20223
20233
20242
20259
20262

Latest cases

Query with SQL
duckdb -csv -c "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\") = 2011
    AND (c.board_report_url IS NOT NULL OR c.\"investigationClass\" = 'Class 1' OR c.\"caseType\" = 'Major - Launch')
  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 ERA12MA122Accident · 3 fatalMajor investigationFinal reportBell 206B · Green Cove Springs, FLThe pilot’s improper decision to continue visual flight into night instrument meteorological conditions, which resulted in controlled flight into terrain. Contributing to the pilot’s improper decision was his self-induced pressure to complete the trip.Dec 26, 2011 · N5016M · DestroyedNTSB DCA12MA020Accident · 5 fatalClass 1 · MajorFinal reportEurocopter France AS350B2 · Las Vegas, NVSundance Helicopters’ inadequate maintenance of the helicopter, including (1) the improper reuse of a degraded self-locking nut, (2) the improper or lack of installation of a split pin, and (3) inadequate postmaintenance inspections, which resulted in the…Dec 8, 2011 · N37SH · DestroyedNTSB WPR12MA046Accident · 6 fatalMajor investigationFinal reportRockwell 690 · Apache Junction, AZThe pilot's failure to maintain a safe ground track and altitude combination for the moonless night visual flight rules flight, which resulted in controlled flight into terrain. Contributing to the accident were the pilot's complacency and lack of situational…Nov 24, 2011 · N690SM · DestroyedNTSB WPR12MA034Accident · 5 fatalMajor investigationFinal reportEurocopter EC 130 B4 · Pukoo, HIThe pilot's failure to maintain clearance from mountainous terrain while operating in marginal weather conditions, which resulted in the impact of the horizontal stabilizer and lower forward portion of the fenestron with ground and/or vegetation and led to…Nov 10, 2011 · N11QV · Substantial damageNTSB ERA12MA005Accident · 2 fatalMajor investigationFinal reportBell 206B · New York, NYThe pilot's failure to anticipate and correct for conditions (high gross weight, low indicated airspeed, and a right downwind turn) conducive to loss of tail rotor effectiveness (LTE), which resulted in LTE and an uncontrolled spin. Contributing to the…Oct 4, 2011 · N63Q · Substantial damageNTSB WPR11MA454Accident · 11 fatalClass 1 · MajorFinal reportNorth American/Aero Classics P-51D · Reno, NVThe reduced stiffness of the elevator trim tab system that allowed aerodynamic flutter to occur at racing speeds. The reduced stiffness was a result of deteriorated locknut inserts that allowed the trim tab attachment screws to become loose and to initiate…Sep 16, 2011 · N79111 · Substantial damageNTSB CEN11FA599Accident · 4 fatalClass 1 · FieldFinal reportEurocopter AS-350-B2 · Mosby, MOThe pilot's failure to confirm that the helicopter had adequate fuel on board to complete the mission before making the first departure, his improper decision to continue the mission and make a second departure after he became aware of a critically low fuel…Aug 26, 2011 · N352LN · Substantial damageNTSB DCA11MA076Accident · 4 fatalClass 1 · MajorFinal reportGulfstream GVI · Roswell, NMThe National Transportation Safety Board determines the probable cause(s) of this accident as follows: an aerodynamic stall and subsequent uncommanded roll during a one engine-inoperative takeoff flight test, which were the result of (1) Gulfstream’s failure…Apr 2, 2011 · N652GD · Substantial damageNTSB DCA11MA039Accident · Minor injuriesMajor investigationFinal reportBoeing 737 · Yuma, AZthe improper installation of the fuselage crown skin panel at the S-4L lap joint during the manufacturing process, which resulted in multiple site damage fatigue cracking and eventual failure of the lower skin panel. Contributing to the injuries was flight…Apr 1, 2011 · N632SW · Substantial damage