Major NTSB investigations
55 cases where the first occurrence was “Airframe/component/system failure/malfunction”.
Cases per year
| 1982 | 2 |
|---|---|
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 7 |
| 1987 | 3 |
| 1988 | 2 |
| 1989 | 8 |
| 1991 | 4 |
| 1992 | 1 |
| 1993 | 2 |
| 1994 | 4 |
| 1995 | 1 |
| 1996 | 1 |
| 1998 | 2 |
| 1999 | 2 |
| 2000 | 5 |
| 2001 | 1 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 2 |
| 2007 | 2 |
Where
Open the mapLatest 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 (c.board_report_url IS NOT NULL OR c.\"investigationClass\" = 'Class 1' OR c.\"caseType\" = 'Major - Launch')
AND c.\"mKey\" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 130)
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.
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.board_report_url IS NOT NULL OR c."investigationClass" = 'Class 1' OR c."caseType" = 'Major - Launch') AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CHI07MA160Accident · 6 fatalClass 1 · MajorFinal reportCessna 550 · Milwaukee, WIThe National Transportation Safety Board determines that the probable cause of this accident was the pilots’ mismanagement of an abnormal flight control situation through improper actions, including failing to control airspeed and to prioritize control of the…NTSB CHI07MA083Accident · 1 fatalMajor investigationFinal reportMcDonnell Douglas 369FF · Haena, HIThe fatigue failure of the tail rotor blade root fitting due to a manufacturing defect which resulted in the separation of the tail rotor system and loss of tail rotor control. A contributing factor to the accident were the trees that the helicopter struck…NTSB DCA06MA010Accident · 20 fatalClass 1 · MajorFinal reportGrumman G-73T · Miami, FLThe in-flight failure and separation of the right wing during normal flight, which resulted from (1) the failure of the Chalk's Ocean Airways maintenance program to identify and properly repair fatigue cracks in the right wing and (2) the failure of the…NTSB CHI05MA111Accident · Serious injuriesMajor investigationFinal reportMcDonnell Douglas DC-9-51 · Minneapolis, MNthe Captain of the other aircraft's decision to shutdown the left engine during taxi with no hydraulic pressure on the right side hydraulic system to effectively operate the brakes, steering, or thrust reversers. A factor was the fatigue fracture of the…NTSB CHI05MA011Accident · No injuriesMajor investigationFinal reportBoeing 747-132 · Lake MichiganThe number one engine separated from the airplane during climb due to the uncontained separation of a portion of the second stage turbine disk rim after the second stage turbine vanes contacted the disk. The second stage turbine vanes contacted the second…NTSB DCA02MA042Accident · No injuriesMajor investigationFinal reportMcDonnell Douglas MD-11F · Subic Bay, PhilippinesThe failure of the lower outboard nut and bolt assembly of the left inboard flap's outboard hinge that resulted from stress corrosion cracking and fatigue. Factors contributing to the accident were the inadequate materials specification of the bolt, and…NTSB CHI01MA163Accident · Serious injuriesMajor investigationFinal reportLearjet 25D · Salina, KSThe PIC's delayed remedial action during the elevator system oscillation, resulting in the failure of the aft elevator sector clevis due to reverse bending fatigue caused by vibration, and subsequent loss of elevator control. Factors contributing to the…NTSB DCA01MA005Accident · Minor injuriesMajor investigationFinal reportDouglas DC-9 · Atlanta, GAthe leakage of lavatory fluid from the airplane's forward lavatory onto electrical connectors, which caused shorting that led to a fire. Contributing to the accident were the inadequate servicing of the lavatory and the failure of maintenance to ensure…NTSB CHI01MA011Accident · 3 fatalClass 1 · MajorFinal reportCessna 335 · Hillsboro, MOThe pilot's failure to control the airplane while maneuvering because of spatial disorientation. Contributing to the accident were the failure of the airplane's primary attitude indicator and the adverse weather conditions, including turbulence.NTSB DCA00MA079Accident · Minor injuriesMajor investigationFinal reportDouglas DC-9-32 · Greensboro, NCA phase-to-phase arc in the left heat exchanger cooling fan relay, which ignited the surrounding wire insulation and other combustible materials within the electrical power center panel. Contributing to the left heat exchanger fan relay malfunction was the…NTSB DCA00MA026Accident · 3 fatalClass 1 · MajorFinal reportDouglas DC-8-71F · Rancho Cordova, CAA loss of pitch control resulting from the disconnection of the right elevator control tab. The disconnection was caused by the failure to properly secure and inspect the attachment bolt.NTSB DCA00MA023Accident · 88 fatalClass 1 · MajorFinal reportDouglas MD-83 · Port Hueneme, CAA loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines' insufficient lubrication of…NTSB NYC00MA048Accident · 3 fatalMajor investigationFinal reportIsrael Aircraft Industries 1124A · Gouldsboro, PAThe improper assembly of the horizontal stabilizer trim actuator unit by maintenance personnel.NTSB DCA00MA005Accident · 6 fatalClass 1 · MajorFinal reportLearjet 35 · Aberdeen, SDIncapacitation of the flight crewmembers as a result of their failure to receive supplemental oxygen following a loss of cabin pressurization, for undetermined reasons.NTSB DCA99MA007Accident · Minor injuriesMajor investigationFinal reportBoeing 737-200 · Atlanta, GA(1) the capping of the incorrect hydraulic line by mechanics, which led to the failure of hydraulic system A; (2) the mechanics' lack of experience working with the Boeing 737 hydraulic system; and (3) the maintenance controller's failure to ascertain more…NTSB FTW98MA096Accident · 2 fatalMajor investigationFinal reportGates Learjet 25B · Houston, TXThe flight crew's continued descent of the airplane below the glideslope and through the published decision height without visual contact with the runway environment. Also, when the captain encountered difficulty tracking the localizer course, his improper…NTSB MIA96FA059Accident · Minor injuriesClass 1 · FieldFinal reportDouglas DC-9-32 · Nashville, TNthe flight crew's improper procedures and actions (failing to contact system operations/dispatch, failing to use all available aircraft and company manuals, and prematurely resetting the ground control relay circuit breakers) in response to an in-flight…NTSB ATL95MA106Accident · Serious injuriesClass 1 · MajorFinal reportDouglas DC-9-32 · Atlanta, GAfailure of Turk Hava Yollari maintenance and inspection personnel to perform a proper inspection of a 7th stage high compressor disc, thus allowing the detectable crack to grow to a length at which the disc ruptured, under normal operating conditions,…NTSB DCA95MA007Accident · 2 fatalClass 1 · MajorFinal reportLearjet 35A · Fresno, CA1) Improperly installed electrical wiring for special mission operations that led to an in-flight fire that caused airplane systems and structural damage and subsequent airplane control difficulties; 2) improper maintenance and inspection procedures followed…NTSB DCA94MA076Accident · 132 fatalClass 1 · MajorFinal reportBoeing B-737-300 · Aliquippa, PAA loss of control of the airplane resulting from the movement of the rudder surface to its blowdown limit. The rudder surface most likely deflected in a direction opposite to that commanded by the pilots as a result of a jam of the main rudder power control…NTSB CHI94MA072Accident · 2 fatalMajor investigationFinal reportCessna 421C · Mccook, NEImproper in-flight planning/decision by the pilot, and the accumulation of airframe ice, which resulted in an inadvertent stall. Factors associated with the accident were: partial failure of both alternators, which resulted in a subsequent electrical system…NTSB MIA94MA048Accident · 10 fatalMajor investigationFinal reportBeech B90 · Okeechobee, FLThe pilot's improper remedial action concerning a right engine power anomaly, and his failure to maintain adequate airspeed during go-around from an aborted precautionary landing, which resulted in a loss of aircraft control and an uncontrolled descent.…NTSB DCA93GA042Accident · 8 fatalClass 1Final reportMitsubishi MU-2B-60 · Zwingle, IAThe fatigue cracking and fracture of the propeller hub arm. The resultant separation of the hub arm and the propeller blade damaged the engine, nacelle, wing, and fuselage, thereby causing significant degradation to aircraft performance and control that made…NTSB DCA93MA037Accident · 2 fatalClass 1 · MajorFinal reportMcdonnell Douglas MD-11 · Shemya, AKThe national transportation safety board determines that the probable cause of this accident was the inadequate design of the flap/slat actuation handle by the Douglas aircraft company that allowed the handle to be easily and inadvertently dislodged from the…NTSB DCA92MA044Accident · Serious injuriesClass 1 · MajorFinal reportLockheed L-1011-385-1 · Jamaica, NYDesign deficiencies in the stall warning system that permitted a defect to go undetected, the failure of twa's maintenance program to correct a repetitive malfunction of the stall warning system, and inadequate crew coordination between the captain and first…NTSB DCA91MA052Accident · 14 fatalClass 1 · MajorFinal reportEmbraer 120 · Eagle Lake, TXThe failure of Continental express maintenance and inspection personnel to adhere to proper maintenance and quality assurance procedures for the airplane's horizontal stabilizer deice boots that led to the sudden in-flight loss of the partially secured left…NTSB CHI91MA260Accident · No injuriesMajor investigationFinal reportBritish Aerospace 3201 · St Louis, MOFailure of the pilot(s) to follow the correct emergency procedure. Factors related to this accident were: inadequate system design by the manufacturer, which allowed hydraulic line vibration, fatigue failure of the line, and loss of fluid from the normal…NTSB DCA91MA033Accident · 23 fatalClass 1 · MajorFinal reportEmbraer EMB-120RT · Brunswick, GAThe loss of control in flight as a result of a malfunction of the left engine propeller control unit which allowed the propeller blade angles to go below the flight idle position. Contributing to the accident was the deficient design of the propeller control…NTSB DCA91MA023Accident · 25 fatalClass 1 · MajorFinal reportBoeing 737-291 · Colorado Spgs, COA loss of control of the airplane resulting from the movement of the rudder surface to its blowdown limit. The rudder surface most likely deflected in a direction opposite to that commanded by the pilots as a result of a jam of the main rudder power control…NTSB NYC90MA009Accident · 5 fatalMajor investigationFinal reportAgusta A109A Mkii · Lacey Township, NJIn-flight separation of a main rotor blade due to fatigue failure of the main rotor blade spar, which originated at a manufacturing induced scratch (tool mark) that was the result of inadequate quality control.NTSB DCA89MA063Accident · 111 fatalClass 1 · MajorFinal reportMcdonnell Douglas DC-10-10 · Sioux City, IAThe inadequate consideration given to human factors limitations in the inspection and quality control procedures used by united airlines' engine overhaul facility which resulted in the failure to detect a fatigue crack originating from a previously…NTSB CHI89MA132Accident · No injuriesMajor investigationFinal reportMcdonnell Douglas DC8-63F · Vandalia, OHFailure of the left main landing gear, bogie trim cylinder, and malfunction of the emergency airbrake control valve.NTSB DCA89MA035Accident · 2 fatalClass 1 · MajorFinal reportMcDonnell Douglas DC-9-33F · Saginaw, TXThe loss of control of the airplane for undetermined reasons following the inflight opening of the improperly latched cargo door. Contributing to the accident were: inadequate procedures used by evergreen airlines and approved by the FAA for preflight…NTSB DCA89MA027Accident · 9 fatalClass 1 · MajorFinal reportBoeing 747-122 · Honolulu, HIThe sudden opening of the improperly latched forward lobe cargo door in flight and the subsequent explosive decompression. Contributing to the accident was a deficiency in the design of the cargo door locking mechanisms, which made them susceptible to…NTSB CHI89MA047Accident · No injuriesMajor investigationFinal reportDassault-Breguet Falcon 900 · South Bend, INFailure of the thrust reverser actuator links due to a manufacturing/design problem. Factors related to the accident were: the adverse runway conditions and the crosswind.NTSB CHI89MA046Accident · No injuriesMajor investigationFinal reportBoeing 737-201 · Chicago, ILPrevious damage to the aft cone (engine mounting) bolt, which resulted in mismatched surfaces between the bolt and isolation mount, loss of torque during cyclic loading of the mounting bolt, and subsequent fatigue failure of the bolt.NTSB ATL89MA070Accident · 2 fatalMajor investigationFinal reportSwearingen SX-300 · Wilmington, OHFatigue and resulting failure of the right wing's lower attachment fitting and inadequate quality control by the Swearingen SX-300 production/design personnel.NTSB DEN88MA203Accident · Minor injuriesMajor investigationFinal reportMcdonnell Douglas DC-10-10 · Denver, COAs the capt was deploying reversers drg lndg, #2 & #3 reversers unlocked & deployed (green lgt cond), but #1 reverser was binding & only moved to the unlocked psn (amber lgt cond). Capt was not warned of this cond, though 2nd officer should have monitored…NTSB DCA88MA054Accident · 1 fatalMajor investigationFinal reportBoeing 737-297 · Maui, HIThe Safety Board's full report on this investigation is provided as Aviation Accident Report number AAR-89/03. To obtain a copy of this report, or to view the executive summary online, please see the Web site at http://www.ntsb.gov/publictn/publictn.htm Flt…NTSB ATL88MA053Accident · 2 fatalMajor investigationFinal reportHawker Siddeley HS-125-400A · Lexington, KYWhile en route at FL 370, the plts declared an emerg, rprtd a fire in the rgt eng & reqd vectors to the nearest suitablearpt. They were vectored twd the Lexington bluegrass arpt & clrd to dscnd. Shortly after declaring an emerg, the plts rprtd they secured…NTSB ATL88MA048Accident · 2 fatalMajor investigationFinal reportBeech C90 · Beaufort, SCAt 0938, while clbg thru 9000', the plt was clrd to clb to FL 210. Aprx 10 min later, the ATC ctlr noted the acft's mode c rtrn wasn't being displayed on his scope. He tried to adz the plt, but couldn't establish radio contact. The acftbroke up in flt & the…NTSB CHI87MA101Accident · Serious injuriesMajor investigationFinal reportMcdonnell Douglas DC-10-10 · Chicago, ILAfter arriving at the gate in Chicago, fumes & smoke were noted in zone c of the cabin, then the cabin lgtg went out & the emerg lgtg came on. Maint psnl fnd the #2 APU had an auto-shutdown due to a malfunction. The APU was placarded as inop & the acft was…NTSB DCA87MA012Accident · No injuriesMajor investigationFinal reportLockheed L1011 · Newark, NJOn November 13, 1986, the rear main spar of the right wing failed as delta flt 194 touched down on rwy 29 at Newark airport. The pilots stated that there was moderate turbulence on final approach and initial touchdown was on the right main gear first. The…NTSB LAX87MA044Accident · Serious injuriesMajor investigationFinal reportMcdonnell Douglas DC-10-10 · Los Angeles, CAThe captain stated that about 90 min after departure, the acft experienced an abrupt pitch-up, followed by an abrupt pitch-down. Drg the occurrence, one flt attendant was seriously injured; two flt attendants & one passenger received minor injuries. The…NTSB NYC87MA024Accident · 1 fatalMajor investigationFinal reportEnstrom F-28F · Manhattan, NYThe aircraft was contracted by nbc to make daily highway traffic observations in the new york city area. The pilot and passenger, an nbc radio traffic reporter, were flying in a northerly direction along Manhattan's west side at an altitude of about 75 feet.…NTSB LAX86MA309Accident · No injuriesMajor investigationFinal reportAerospatiale AS-355F-1 · Morgan City, LAThe plt flew to a nearby arpt to practice takeoffs & lndgs. He rprtd that after 3 lndgs 'out of a hover,' he returned to the departure heliport & lndd again from a hover. Drg touchdown, the helicopter bgn to rock fm side to side & enteredground resonance. The…NTSB MIA86MA182Accident · 2 fatalMajor investigationFinal reportHughes 369HE · Jacksonville, FLA LCL tv stn had hired the oper to provide a helicopter for use in broadcasting an airborne traffic show. The plt took off with a rprtr & a camera man aboard. Drg a live traffic rprt, the acft was hdg eastbound at slow speed ovr a downtownarea at aprx 400 ft…NTSB FTW86MA058Accident · 7 fatalMajor investigationFinal reportIsrael Aircraft Industries 1124A · Redwater, TXAirplane crashed during a uncontrolled descent, following a turbulence upset at FL370. The upset occurred as a result of clr air turb associated with a vip lvl 6 thunderstorm located within 7 miles of the last pos of the airplane. After the upset, the…NTSB FTW86MA030Incident · No injuriesMajor investigationFinal reportBoeing 737-2H4 · Dallas, TXThis incident occurred when the no. 2 engine experienced an aft engine mount cone bolt failure and the subsequent failure of the secondary support link (stainless steel cable). The failure of both aft engine support assemblies during the takeoff roll allowed…NTSB ATL86MA011Accident · 2 fatalMajor investigationFinal reportBeech 58P · Forsyth, GAThe flt was normal until the plt was tracking inbnd on the atlanta (atl) 128 deg radial twd the husky intxn & was told to make a 360 deg turn for spacing. After aprx 270 deg of turn, the plt was clrd to turn back inbnd, join the atl 128 deg radial & cont to…