# Major NTSB investigations: Airframe/component/system failure/malfunction NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 1 of 2 · 55 cases ## Latest cases - [NTSB CHI07MA160](https://openairdocs.org/ntsb/CHI07MA160.md): Cessna 550 · Milwaukee, WI · Accident · 6 fatal · Class 1 · Major · Final report · Jun 4, 2007 · N550BP · Destroyed > The 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 CHI07MA083](https://openairdocs.org/ntsb/CHI07MA083.md): McDonnell Douglas 369FF · Haena, HI · Accident · 1 fatal · Major investigation · Final report · Mar 11, 2007 · N911VC · Substantial damage > The 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 DCA06MA010](https://openairdocs.org/ntsb/DCA06MA010.md): Grumman G-73T · Miami, FL · Accident · 20 fatal · Class 1 · Major · Final report · Dec 19, 2005 · N2969 · Destroyed > The 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 CHI05MA111](https://openairdocs.org/ntsb/CHI05MA111.md): McDonnell Douglas DC-9-51 · Minneapolis, MN · Accident · Serious injuries · Major investigation · Final report · May 11, 2005 · N763NC · 2 aircraft · Substantial damage > the 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 CHI05MA011](https://openairdocs.org/ntsb/CHI05MA011.md): Boeing 747-132 · Lake Michigan · Accident · No injuries · Major investigation · Final report · Oct 21, 2004 · N709CK · Substantial damage > The 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 DCA02MA042](https://openairdocs.org/ntsb/DCA02MA042.md): McDonnell Douglas MD-11F · Subic Bay, Philippines · Accident · No injuries · Major investigation · Final report · Jun 2, 2002 · N601FE · Substantial damage > The 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 CHI01MA163](https://openairdocs.org/ntsb/CHI01MA163.md): Learjet 25D · Salina, KS · Accident · Serious injuries · Major investigation · Final report · Jun 12, 2001 · N333CG · Destroyed > The 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 DCA01MA005](https://openairdocs.org/ntsb/DCA01MA005.md): Douglas DC-9 · Atlanta, GA · Accident · Minor injuries · Major investigation · Final report · Nov 29, 2000 · N826AT · Substantial damage > the 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 CHI01MA011](https://openairdocs.org/ntsb/CHI01MA011.md): Cessna 335 · Hillsboro, MO · Accident · 3 fatal · Class 1 · Major · Final report · Oct 17, 2000 · N8354N · Destroyed > The 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 DCA00MA079](https://openairdocs.org/ntsb/DCA00MA079.md): Douglas DC-9-32 · Greensboro, NC · Accident · Minor injuries · Major investigation · Final report · Aug 8, 2000 · N838AT · Substantial damage > A 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 DCA00MA026](https://openairdocs.org/ntsb/DCA00MA026.md): Douglas DC-8-71F · Rancho Cordova, CA · Accident · 3 fatal · Class 1 · Major · Final report · Feb 17, 2000 · N8079U · Destroyed > A 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 DCA00MA023](https://openairdocs.org/ntsb/DCA00MA023.md): Douglas MD-83 · Port Hueneme, CA · Accident · 88 fatal · Class 1 · Major · Final report · Feb 1, 2000 · N963AS · Destroyed > A 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 NYC00MA048](https://openairdocs.org/ntsb/NYC00MA048.md): Israel Aircraft Industries 1124A · Gouldsboro, PA · Accident · 3 fatal · Major investigation · Final report · Dec 12, 1999 · N50PL · Destroyed > The improper assembly of the horizontal stabilizer trim actuator unit by maintenance personnel. - [NTSB DCA00MA005](https://openairdocs.org/ntsb/DCA00MA005.md): Learjet 35 · Aberdeen, SD · Accident · 6 fatal · Class 1 · Major · Final report · Oct 25, 1999 · N47BA · Destroyed > Incapacitation of the flight crewmembers as a result of their failure to receive supplemental oxygen following a loss of cabin pressurization, for undetermined reasons. - [NTSB DCA99MA007](https://openairdocs.org/ntsb/DCA99MA007.md): Boeing 737-200 · Atlanta, GA · Accident · Minor injuries · Major investigation · Final report · Nov 1, 1998 · EICJW · Substantial damage > (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 FTW98MA096](https://openairdocs.org/ntsb/FTW98MA096.md): Gates Learjet 25B · Houston, TX · Accident · 2 fatal · Major investigation · Final report · Jan 13, 1998 · N627WS · Destroyed > The 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 MIA96FA059](https://openairdocs.org/ntsb/MIA96FA059.md): Douglas DC-9-32 · Nashville, TN · Accident · Minor injuries · Class 1 · Field · Final report · Jan 7, 1996 · N922VV · Substantial damage > the 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 ATL95MA106](https://openairdocs.org/ntsb/ATL95MA106.md): Douglas DC-9-32 · Atlanta, GA · Accident · Serious injuries · Class 1 · Major · Final report · Jun 8, 1995 · N908VJ · Substantial damage > failure 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 DCA95MA007](https://openairdocs.org/ntsb/DCA95MA007.md): Learjet 35A · Fresno, CA · Accident · 2 fatal · Class 1 · Major · Final report · Dec 14, 1994 · N521PA · Destroyed > 1) 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 DCA94MA076](https://openairdocs.org/ntsb/DCA94MA076.md): Boeing B-737-300 · Aliquippa, PA · Accident · 132 fatal · Class 1 · Major · Final report · Sep 8, 1994 · N513AU · Destroyed > A 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 CHI94MA072](https://openairdocs.org/ntsb/CHI94MA072.md): Cessna 421C · Mccook, NE · Accident · 2 fatal · Major investigation · Final report · Jan 26, 1994 · N5468G · Destroyed > Improper 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 MIA94MA048](https://openairdocs.org/ntsb/MIA94MA048.md): Beech B90 · Okeechobee, FL · Accident · 10 fatal · Major investigation · Final report · Jan 5, 1994 · N230TW · Destroyed > The 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 DCA93GA042](https://openairdocs.org/ntsb/DCA93GA042.md): Mitsubishi MU-2B-60 · Zwingle, IA · Accident · 8 fatal · Class 1 · Final report · Apr 19, 1993 · N86SD · Destroyed > The 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 DCA93MA037](https://openairdocs.org/ntsb/DCA93MA037.md): Mcdonnell Douglas MD-11 · Shemya, AK · Accident · 2 fatal · Class 1 · Major · Final report · Apr 6, 1993 · B2171 · Minor damage > The 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 DCA92MA044](https://openairdocs.org/ntsb/DCA92MA044.md): Lockheed L-1011-385-1 · Jamaica, NY · Accident · Serious injuries · Class 1 · Major · Final report · Jul 30, 1992 · N11002 · Destroyed > Design 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 DCA91MA052](https://openairdocs.org/ntsb/DCA91MA052.md): Embraer 120 · Eagle Lake, TX · Accident · 14 fatal · Class 1 · Major · Final report · Sep 11, 1991 · N33701 · Destroyed > The 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 CHI91MA260](https://openairdocs.org/ntsb/CHI91MA260.md): British Aerospace 3201 · St Louis, MO · Accident · No injuries · Major investigation · Final report · Aug 12, 1991 · N339TE · Substantial damage > Failure 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 DCA91MA033](https://openairdocs.org/ntsb/DCA91MA033.md): Embraer EMB-120RT · Brunswick, GA · Accident · 23 fatal · Class 1 · Major · Final report · Apr 5, 1991 · N270AS · Destroyed > The 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 DCA91MA023](https://openairdocs.org/ntsb/DCA91MA023.md): Boeing 737-291 · Colorado Spgs, CO · Accident · 25 fatal · Class 1 · Major · Final report · Mar 3, 1991 · N999UA · Destroyed > A 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 NYC90MA009](https://openairdocs.org/ntsb/NYC90MA009.md): Agusta A109A Mkii · Lacey Township, NJ · Accident · 5 fatal · Major investigation · Final report · Oct 10, 1989 · N21FL · Destroyed > In-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 DCA89MA063](https://openairdocs.org/ntsb/DCA89MA063.md): Mcdonnell Douglas DC-10-10 · Sioux City, IA · Accident · 111 fatal · Class 1 · Major · Final report · Jul 19, 1989 · N1819U · Destroyed > The 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 CHI89MA132](https://openairdocs.org/ntsb/CHI89MA132.md): Mcdonnell Douglas DC8-63F · Vandalia, OH · Accident · No injuries · Major investigation · Final report · Jul 13, 1989 · N950R · Substantial damage > Failure of the left main landing gear, bogie trim cylinder, and malfunction of the emergency airbrake control valve. - [NTSB DCA89MA035](https://openairdocs.org/ntsb/DCA89MA035.md): McDonnell Douglas DC-9-33F · Saginaw, TX · Accident · 2 fatal · Class 1 · Major · Final report · Mar 18, 1989 · N931F · Destroyed > The 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 DCA89MA027](https://openairdocs.org/ntsb/DCA89MA027.md): Boeing 747-122 · Honolulu, HI · Accident · 9 fatal · Class 1 · Major · Final report · Feb 24, 1989 · N4713U · Substantial damage > The 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 CHI89MA047](https://openairdocs.org/ntsb/CHI89MA047.md): Dassault-Breguet Falcon 900 · South Bend, IN · Accident · No injuries · Major investigation · Final report · Jan 20, 1989 · N901B · Substantial damage > Failure 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 CHI89MA046](https://openairdocs.org/ntsb/CHI89MA046.md): Boeing 737-201 · Chicago, IL · Accident · No injuries · Major investigation · Final report · Jan 20, 1989 · N242US · Substantial damage > Previous 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 ATL89MA070](https://openairdocs.org/ntsb/ATL89MA070.md): Swearingen SX-300 · Wilmington, OH · Accident · 2 fatal · Major investigation · Final report · Jan 9, 1989 · N6Y · Destroyed > Fatigue and resulting failure of the right wing's lower attachment fitting and inadequate quality control by the Swearingen SX-300 production/design personnel. - [NTSB DEN88MA203](https://openairdocs.org/ntsb/DEN88MA203.md): Mcdonnell Douglas DC-10-10 · Denver, CO · Accident · Minor injuries · Major investigation · Final report · Sep 12, 1988 · N1830U · Substantial damage > As 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 DCA88MA054](https://openairdocs.org/ntsb/DCA88MA054.md): Boeing 737-297 · Maui, HI · Accident · 1 fatal · Major investigation · Final report · Apr 28, 1988 · N73711 · Substantial damage > The 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 ATL88MA053](https://openairdocs.org/ntsb/ATL88MA053.md): Hawker Siddeley HS-125-400A · Lexington, KY · Accident · 2 fatal · Major investigation · Final report · Dec 5, 1987 · N400PH · Destroyed > While 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 ATL88MA048](https://openairdocs.org/ntsb/ATL88MA048.md): Beech C90 · Beaufort, SC · Accident · 2 fatal · Major investigation · Final report · Nov 30, 1987 · N4463W · Destroyed > At 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 CHI87MA101](https://openairdocs.org/ntsb/CHI87MA101.md): Mcdonnell Douglas DC-10-10 · Chicago, IL · Accident · Serious injuries · Major investigation · Final report · Mar 25, 1987 · N128AA · No damage > After 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 DCA87MA012](https://openairdocs.org/ntsb/DCA87MA012.md): Lockheed L1011 · Newark, NJ · Accident · No injuries · Major investigation · Final report · Nov 13, 1986 · N714DA · Substantial damage > On 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 LAX87MA044](https://openairdocs.org/ntsb/LAX87MA044.md): Mcdonnell Douglas DC-10-10 · Los Angeles, CA · Accident · Serious injuries · Major investigation · Final report · Nov 7, 1986 · N68043 · No damage > The 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 NYC87MA024](https://openairdocs.org/ntsb/NYC87MA024.md): Enstrom F-28F · Manhattan, NY · Accident · 1 fatal · Major investigation · Final report · Oct 22, 1986 · N8617B · Destroyed > The 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 LAX86MA309](https://openairdocs.org/ntsb/LAX86MA309.md): Aerospatiale AS-355F-1 · Morgan City, LA · Accident · No injuries · Major investigation · Final report · Jul 18, 1986 · N57967 · Destroyed > The 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 MIA86MA182](https://openairdocs.org/ntsb/MIA86MA182.md): Hughes 369HE · Jacksonville, FL · Accident · 2 fatal · Major investigation · Final report · Jun 16, 1986 · N9045F · Destroyed > A 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 FTW86MA058](https://openairdocs.org/ntsb/FTW86MA058.md): Israel Aircraft Industries 1124A · Redwater, TX · Accident · 7 fatal · Major investigation · Final report · Apr 5, 1986 · N50SK · Destroyed > Airplane 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 FTW86MA030](https://openairdocs.org/ntsb/FTW86MA030.md): Boeing 737-2H4 · Dallas, TX · Incident · No injuries · Major investigation · Final report · Jan 3, 1986 · N86SW · Minor damage > This 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 ATL86MA011](https://openairdocs.org/ntsb/ATL86MA011.md): Beech 58P · Forsyth, GA · Accident · 2 fatal · Major investigation · Final report · Oct 27, 1985 · N583AM · Destroyed > The 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… Next page: https://openairdocs.org/ntsb.md?major=1&occurrence=130&page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 ``` This list as a web page: https://openairdocs.org/ntsb?major=1&occurrence=130 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.