# NTSB investigations: Oversight of maintenance 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. ## Latest cases - [NTSB ENG23LA031](https://openairdocs.org/ntsb/ENG23LA031.md): Boeing 737-9 · Newark, NJ · Incident · No injuries · Class 3 · Limited · Final report · Jun 28, 2023 · N37516 · Minor damage > A No. 1 (left) engine fire due a fuel leak that originated from the fuel nozzle 17 b-nut connection that was not properly torqued in accordance with the aircraft maintenance manual procedure. - [NTSB WPR23LA017](https://openairdocs.org/ntsb/WPR23LA017.md): Cessna 177RG · Mesa, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 18, 2022 · N747ML · Substantial damage > The failure of maintenance personnel to properly secure the fuel supply line to the fuel flow divider, which resulted in a fuel leak, fuel exhaustion, and a total loss of engine power. - [NTSB CEN22LA228](https://openairdocs.org/ntsb/CEN22LA228.md): Air Tractor AT-602 · Allport, AR · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 1, 2022 · N5007R · Substantial damage > A partial loss of engine power due to fuel contamination from foreign object debris. Contributing to the accident was the operator’s failure to follow the manufacturer’s required airframe fuel filter inspection interval. - [NTSB ERA22LA217](https://openairdocs.org/ntsb/ERA22LA217.md): Cessna 172N · Toms River, NJ · Accident · No injuries · Class 4 · Limited · Final report · May 1, 2022 · N737LY · Substantial damage > Loss of engine power due to the throttle linkage becoming disconnected in flight due to improper maintenance. - [NTSB ANC22FA018](https://openairdocs.org/ntsb/ANC22FA018.md): Sikorsky S-61N · Kekaha, HI · Accident · 4 fatal · Class 3 · Field · Final report · Feb 22, 2022 · N615CK · Destroyed > The improper installation of the fore/aft primary servo by maintenance personnel, which resulted in the attaching hardware backing out and which subsequently rendered the helicopter uncontrollable. Contributing to the accident was the company’s quality… - [NTSB WPR19MA177](https://openairdocs.org/ntsb/WPR19MA177.md): Beech 65-A90 · Mokuleia, HI · Accident · 11 fatal · Class 2 · Major · Final report · Jun 22, 2019 · N256TA · Destroyed > The pilot’s aggressive takeoff maneuver, which resulted in an accelerated stall and subsequent loss of control at an altitude that was too low for recovery. Contributing to the accident were (1) the operation of the airplane near its aft center of gravity… - [NTSB WPR19LA010](https://openairdocs.org/ntsb/WPR19LA010.md): Piper PA46 · Hurricane, UT · Accident · Serious injuries · Limited investigation · Final report · Oct 21, 2018 · N413LL · Substantial damage > The mechanic’s failure to properly align the engine exhaust crossover pipe during replacement, and his supervisor’s failure to properly inspect the installation, which resulted in an in-flight fire and the loss of engine power. - [NTSB DCA18IA092](https://openairdocs.org/ntsb/DCA18IA092.md): Boeing 777 222 · Honolulu, HI · Incident · No injuries · Incident investigation · Final report · Feb 13, 2018 · N773UA · Minor damage > the fracture of a fan blade due to P&W's continued classification of the TAI inspection process as a new and emerging technology that permitted them to continue accomplishing the inspection without having to develop a formal, defined initial and recurrent… - [NTSB WPR17LA180](https://openairdocs.org/ntsb/WPR17LA180.md): Lockheed P2V 5F · Pocatello, ID · Accident · No injuries · Limited investigation · Final report · Aug 6, 2017 · N410NA · Substantial damage > Maintenance personnel's failure to secure hardware, which resulted in an uncommanded upward deflection of the left elevator and aft movement of the control yoke and inhibited the flight crew from adjusting the airplane's pitch attitude in flight. Contributing… - [NTSB WPR17LA078](https://openairdocs.org/ntsb/WPR17LA078.md): Swearingen SA226 · Boise, ID · Accident · No injuries · Limited investigation · Final report · Mar 20, 2017 · N158WA · Substantial damage > Company maintenance personnel's failure to remove a screwdriver that was left lodged in the windshield wiper area of the forward fuselage during maintenance and subsequently became dislodged on takeoff/initial climb and collided with a left propeller blade. - [NTSB WPR17IA007](https://openairdocs.org/ntsb/WPR17IA007.md): Short Bros SD3 60 Sherpa · Missoula, MT · Incident · No injuries · Incident investigation · Final report · Oct 13, 2016 · N148Z · Minor damage > The failure of the nose landing gear down-lock piston to engage due to paint accumulation, which resulted in a nose landing gear collapse during landing. Also causal was the failure of the facility that performed the painting to comply with manufacturer… - [NTSB ERA16LA209](https://openairdocs.org/ntsb/ERA16LA209.md): WSK PZL Mielec M 18A · Brunswick, NC · Accident · 1 fatal · Limited investigation · Final report · Jun 10, 2016 · N2283M · Destroyed > The failure of the right wing due to a fatigue fracture of the right outboard wing forward spar lower fitting. Contributing to the accident was the routine operation of the airplane over its certificated maximum gross weight and the operator's improper or… - [NTSB WPR16FA072](https://openairdocs.org/ntsb/WPR16FA072.md): Bell 206B · Honolulu, HI · Accident · 1 fatal · Field investigation · Final report · Feb 18, 2016 · N80918 · Substantial damage > The in-flight failure of the engine-to-transmission drive shaft due to improper maintenance, which resulted in low main rotor rpm and a subsequent hard landing to water. - [NTSB CEN15LA399](https://openairdocs.org/ntsb/CEN15LA399.md): Weatherly 620B · Hancock, WI · Accident · 1 fatal · Limited investigation · Final report · Aug 26, 2015 · N2005C · Destroyed > The in-flight failure of the left wing lower forward attach point under normal loading conditions due to corrosion and fatigue cracking in the center section hinge brackets. Contributing to the accident was the operator's inadequate maintenance and overweight… - [NTSB WPR15FA158](https://openairdocs.org/ntsb/WPR15FA158.md): Piper PA 46 350P · Spokane, WA · Accident · 2 fatal · Field investigation · Final report · May 7, 2015 · N962DA · Destroyed > The mechanic's incorrect installation of two aileron cables and the subsequent inadequate functional checks of the aileron system before flight by both the mechanic and the pilot, which prevented proper roll control from the cockpit, resulting in the pilot's… - [NTSB ANC15LA015](https://openairdocs.org/ntsb/ANC15LA015.md): Airbus AS350 B2 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Mar 13, 2015 · N814EH · Substantial damage > The failure of the ball bearing within the pitch change spider assembly due to its operation with no grease within the bearing, which resulted in the subsequent fracture of the spider assembly and a loss of tail rotor control authority. Also causal to the… - [NTSB ERA15FA128](https://openairdocs.org/ntsb/ERA15FA128.md): Piper PA28 · Greensboro, NC · Accident · 1 fatal · Field investigation · Final report · Feb 11, 2015 · N5985U · Substantial damage > A total loss of engine power after takeoff due to fuel starvation as a result of excessive wear of the fuel selector valve. Also causal was the owner/operator and maintenance personnel's inadequate maintenance, and inadequate postmaintenance inspection. - [NTSB ANC14LA038](https://openairdocs.org/ntsb/ANC14LA038.md): Aeronca 15AC · Talkeetna, AK · Accident · No injuries · Limited investigation · Final report · Jun 6, 2014 · N1301H · Substantial damage > Maintenance personnel’s failure to perform required fuel system tests to ensure that the airplane met its original type certification basis after modifying the fuel system and the Federal Aviation Administration’s improper approval of the fuel tank… - [NTSB WPR13FA294](https://openairdocs.org/ntsb/WPR13FA294.md): Cessna 172 · Birdseye, UT · Accident · 1 fatal · Field investigation · Final report · Jun 27, 2013 · N4459R · Substantial damage > ***This report was modified on August 18, 2015. Please see the docket for this accident to view the original report.*** The operator's improper installation of a supplemental electrical power supply, which caused a short circuit due to inadequate vibration… - [NTSB ERA13LA188](https://openairdocs.org/ntsb/ERA13LA188.md): Cessna 402C · Fort Lauderdale, FL · Accident · No injuries · Limited investigation · Final report · Apr 1, 2013 · VQ-TIN · Substantial damage > The disconnection of the nose landing gear actuator, which resulted in the subsequent collapse of the nose landing gear. Contributing to the accident was the repair station’s inadequate maintenance, postmaintenance inspection process, and oversight of the… - [NTSB ERA13LA116](https://openairdocs.org/ntsb/ERA13LA116.md): Robinson Helicopter R22 Beta · Ellington, CT · Accident · Minor injuries · Limited investigation · Final report · Jan 17, 2013 · N26NE · Substantial damage > The separation of the collective push-pull tube and jackshaft assembly, which resulted in the total loss of helicopter control and collision with terrain. Contributing to the accident was the inadequate supervision of maintenance personnel by the operator… - [NTSB CEN12LA235](https://openairdocs.org/ntsb/CEN12LA235.md): Eurocopter SA315B · Alva, OK · Accident · No injuries · Limited investigation · Final report · Mar 30, 2012 · N929JV · Substantial damage > Failure of the current and previous operators to comply with the manufacturer's maintenance procedures for operation in sandy environments, which resulted in turbine case erosion and the subsequent uncontained engine failure. - [NTSB CEN11LA491](https://openairdocs.org/ntsb/CEN11LA491.md): Beech C35 · Medina, OH · Accident · No injuries · Limited investigation · Final report · Jul 20, 2011 · N1883D · Substantial damage > The loss of engine power due to fuel starvation due to an age-related failure of the engine-driven fuel pump. Also causal was the failure of the maintenance facility to overhaul the fuel pump and the failure of the operator to ensure that the pump was… - [NTSB WPR10FA440](https://openairdocs.org/ntsb/WPR10FA440.md): Hiller UH 12E · Kamiah, ID · Accident · 3 fatal · Field investigation · Final report · Aug 31, 2010 · N67264 · Substantial damage > In-flight impact of a passenger's metal clipboard with the helicopter’s tail rotor, which resulted in destruction of the tail rotor and subsequent loss of control of the helicopter. The original location of the clipboard and how it became free could not be… - [NTSB WPR10FA371](https://openairdocs.org/ntsb/WPR10FA371.md): American Eurocopter AS 350 B3 · Tucson, AZ · Accident · 3 fatal · Field investigation · Final report · Jul 28, 2010 · N509AM · Substantial damage > The repair station technician did not properly install the fuel inlet union during reassembly of the engine; the operator’s maintenance personnel did not adequately inspect the technician's work; and the pilot who performed the post maintenance check flight… - [NTSB ERA10TA261](https://openairdocs.org/ntsb/ERA10TA261.md): Bell 407 · Abingdon, VA · Accident · No injuries · Final report · May 11, 2010 · N31VA · Substantial damage > The improper repair of an engine component by a repair facility, which resulted in a complete loss of engine power. Contributing to the accident was the failure of the repair facility to recognize that an improper repair had been accomplished, which allowed… - [NTSB ENG09IA002](https://openairdocs.org/ntsb/ENG09IA002.md): Boeing 777 · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Jan 2, 2009 · N864DA · Minor damage > The fan blade fractured due to a fatigue crack that was the result of the combination of the breakdown of the fan blade lubrication system and residual fatigue life usage following the last overhaul of the fan blade. Contributing to the fracture was the… - [NTSB DCA08MA098](https://openairdocs.org/ntsb/DCA08MA098.md): Learjet LR60 · Columbia, SC · Accident · 4 fatal · Class 1 · Major · Final report · Sep 20, 2008 · N999LJ · Destroyed > The operator’s inadequate maintenance of the airplane’s tires, which resulted in multiple tire failures during takeoff roll due to severe underinflation, and the captain’s execution of a rejected takeoff (RTO) after V1, which was inconsistent with her… ## 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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '04032020')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/04032020/cases --- 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.