# NTSB investigations: Scheduled maint checks

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.

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## Latest cases

- [NTSB CEN23LA255](https://openairdocs.org/ntsb/CEN23LA255.md): Piper PA-25-235 · Westhope, ND · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 22, 2023 · N7419Z · Substantial damage
  > The pilot’s failure to maintain aircraft control that resulted in an impact with terrain after takeoff.
- [NTSB CEN23LA062](https://openairdocs.org/ntsb/CEN23LA062.md): Mooney M20K · Addison, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 13, 2022 · N231GZ · Substantial damage
  > The fatigue failure of the engine’s camshaft gear teeth which resulted in a loss of all engine power. Contributing to the accident was the non-compliance with the engine manufacturer’s recommended service bulletin.
- [NTSB ERA22LA410](https://openairdocs.org/ntsb/ERA22LA410.md): Cessna U206 · Buckland, AK · Accident · No injuries · Class 3 · Limited · Final report · Sep 9, 2022 · N8019Z · Substantial damage
  > The installation of incompatible rocker arms and rocker arm bushings during an engine overhaul, which resulted in a complete loss of engine power.
- [NTSB ERA22LA194](https://openairdocs.org/ntsb/ERA22LA194.md): Piper PA-28-140B · Panama City, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 18, 2022 · N8891N · Substantial damage
  > A total loss of engine power due to fuel contamination. Contributing to the accident was the inadequate maintenance and inspection of the airplane and engine by maintenance personnel, and the pilot’s inadequate preflight inspection and runup.
- [NTSB DCA21FA085](https://openairdocs.org/ntsb/DCA21FA085.md): Boeing 777-222 · Broomfield, CO · Incident · No injuries · Class 3 · Field · Final report · Feb 20, 2021 · N772UA · Minor damage
  > The fatigue failure of the right engine fan blade. Contributing to the fan blade failure was the inadequate inspection of the blades, which failed to identify low-level indications of cracking, and the insufficient frequency of the manufacturer’s inspection…
- [NTSB ERA21LA106](https://openairdocs.org/ntsb/ERA21LA106.md): American AA5 · Leesburg, VA · Accident · No injuries · Class 3 · Limited · Final report · Jan 19, 2021 · N5880L · Substantial damage
  > The weakened structure of the left horizontal stabilizer, which resulted in elevator flutter and subsequent partial separation of the left elevator in flight. Contributing to the accident were the lack of elevator authority while landing due to the damaged…
- [NTSB CEN21LA030](https://openairdocs.org/ntsb/CEN21LA030.md): Cessna 210 · Lubbock, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Oct 26, 2020 · N9622T · Destroyed
  > The pilot’s improper decision to fly into icing conditions with an airplane that was not equipped for icing, which led to structural icing and a subsequent loss of airplane control, and the pilot’s impairment from carbon monoxide poisoning due to a cracked…
- [NTSB CEN20LA322](https://openairdocs.org/ntsb/CEN20LA322.md): Quad City Challenger · Jonesboro, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 2, 2020 · N990SS · Substantial damage
  > Loss of engine power due to the use of improper fuel in the airplane by the non-certificated pilot.
- [NTSB ERA20LA271](https://openairdocs.org/ntsb/ERA20LA271.md): American AA 5 · Dunnellon, FL · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 1, 2020 · N7192L · Substantial damage
  > A total loss of engine power due to fuel starvation as a result of improper installation and inspection of the airplane’s fuel system. Contributing to the accident was the pilot’s lack of certification and knowledge in aircraft maintenance.
- [NTSB ERA18FA264](https://openairdocs.org/ntsb/ERA18FA264.md): Dassault Falcon 50 · Greenville, SC · Accident · 2 fatal · Field investigation · Final report · Sep 27, 2018 · N114TD · Substantial damage
  > The operator's decision to allow a flight in an airplane with known, unresolved maintenance discrepancies, and the flight crew's failure to properly configure the airplane in a way that would have allowed the emergency or parking brake systems to stop the…
- [NTSB ERA18LA270](https://openairdocs.org/ntsb/ERA18LA270.md): Maule M7 · Floresville, TX · Accident · No injuries · Limited investigation · Final report · Sep 11, 2018 · N969AW · Substantial damage
  > The separation of the left inboard main landing gear (MLG) attachment bolt due to insufficient torque, which resulted in the collapse of the left MLG.
- [NTSB ERA18LA073](https://openairdocs.org/ntsb/ERA18LA073.md): Aero Commander 680 F · Lapine, AL · Accident · No injuries · Limited investigation · Final report · Jan 27, 2018 · N900L · Substantial damage
  > The pilot's failure to maintain directional control during takeoff after a total loss of left engine power due to fuel contamination, which resulted in impact with trees. Contributing to the accident were the mechanic's failure to properly flush the fuel…
- [NTSB CEN18LA084](https://openairdocs.org/ntsb/CEN18LA084.md): Beech A36 · Abilene, TX · Accident · Serious injuries · Limited investigation · Final report · Jan 22, 2018 · N3600A · Substantial damage
  > Maintenance personnel’s improper maintenance of the engine, which resulted in a catastrophic engine failure due the shifting/slipping of the No. 2 bearing and the subsequent oil starvation and total loss of engine power during cruise flight.
- [NTSB WPR18LA058](https://openairdocs.org/ntsb/WPR18LA058.md): Cessna 210 · San Bernardino, CA · Accident · No injuries · Limited investigation · Final report · Dec 30, 2017 · N222AT · Substantial damage
  > The fatigue failure of the left main landing gear (MLG) saddle, which resulted in the pilot's inability to extend the left MLG. Contributing to the accident was the pilot's improper decision to fly the airplane before the annual inspection was completed and…
- [NTSB CEN18LA059](https://openairdocs.org/ntsb/CEN18LA059.md): American Champion 7GCAA · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Dec 20, 2017 · N519MA · Substantial damage
  > The failure of the landing gear through bolt primarily due to fatigue during a hard landing, which resulted in a landing gear collapse and runway excursion. Contributing to the accident was noncompliance with the manufacturer service letter.
- [NTSB ENG18IA003](https://openairdocs.org/ntsb/ENG18IA003.md): Airbus A330-243 · Seattle, WA · Incident · No injuries · Class 3 · Incident · Final report · Nov 7, 2017 · N375HA · Minor damage
  > The loss of control of the left-hand engine and the subsequent thermal damage to the left wing on landing during engine reverse operation was due to a blockage of the variable stator vane torque motor filter that resulted in the engine’s electronic engine…
- [NTSB CEN17LA351](https://openairdocs.org/ntsb/CEN17LA351.md): Cessna 340 · McKinney, TX · Accident · No injuries · Limited investigation · Final report · Sep 9, 2017 · N5870M · Substantial damage
  > The failure of the bell crank pivot bolt which resulted in the left main landing gear collapse. Contributing to the accident was the lack of landing gear inspections in accordance with the airplane manufacturer's maintenance manuals.
- [NTSB ERA17LA128](https://openairdocs.org/ntsb/ERA17LA128.md): Piper PA28 · Tampa, FL · Accident · No injuries · Limited investigation · Final report · Mar 12, 2017 · N8447R · Substantial damage
  > A collapsed engine induction duct, which resulted in restricted air flow to the engine and a subsequent loss of engine power. Contributing to the accident was the operator's failure to ensure that the correct induction duct was installed.
- [NTSB CEN17FA085](https://openairdocs.org/ntsb/CEN17FA085.md): Cessna 172 · Jay, OK · Accident · 1 fatal · Field investigation · Final report · Jan 25, 2017 · N5639A · Substantial damage
  > The pilot's negligent maintenance of the airplane, which resulted in improper fuel management, fuel starvation, and a loss of engine power during takeoff due to a missing securing pin in the fuel selector handle, and a subsequent forced landing on unsuitable…
- [NTSB CEN16LA336](https://openairdocs.org/ntsb/CEN16LA336.md): Beech E-55 · Wichita Falls, TX · Accident · No injuries · Limited investigation · Final report · Aug 24, 2016 · N855T · Substantial damage
  > The failure of the landing gear assembly snap ring, which prevented the pilot from being able to extend the landing gear and resulted in a gear-up landing. Also causal was the lack of the assembly's overhaul in accordance with the airplane maintenance manual.
- [NTSB CEN16LA300](https://openairdocs.org/ntsb/CEN16LA300.md): Wings AN Things Avid Flyer · Bluffton, IN · Accident · Serious injuries · Limited investigation · Final report · Aug 3, 2016 · N430WT · Substantial damage
  > The loss of roll control during climb for reasons that could not be determined because postaccident examination of the airframe revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR16LA134](https://openairdocs.org/ntsb/WPR16LA134.md): Bell OH 58A · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Jul 2, 2016 · N6251G · Substantial damage
  > The engine's degraded performance due to excessive wear of the engine bleed valve, which prevented it from closing during the accident flight. Contributing to the accident was the operator's failure to overhaul the bleed valve within the…
- [NTSB ERA16LA145](https://openairdocs.org/ntsb/ERA16LA145.md): Cessna 175B · Hurley, MS · Accident · No injuries · Limited investigation · Final report · Apr 2, 2016 · N8115T · Substantial damage
  > The mechanic's failure to identify and remove a plastic sheath covering a portion of the mixture control cable during an annual inspection, which prevented the proper securing of the mixture control cable and full travel of the control at the carburetor and…
- [NTSB WPR16LA080](https://openairdocs.org/ntsb/WPR16LA080.md): North Wing Apache · Queen Creek, AZ · Accident · Serious injuries · Limited investigation · Final report · Mar 5, 2016 · N242WT · Substantial damage
  > A loss of control for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the noncertificated pilot’s lack of experience in the…
- [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 DCA16LA096](https://openairdocs.org/ntsb/DCA16LA096.md): Lockheed 382G · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Feb 12, 2016 · N401LC · Substantial damage
  > The fatigue failure of the forward pressure bulkhead canted web that originated from stress corrosion cracking areas. Contributing to the failure were inspection procedures and intervals inadequate to identify the crack.
- [NTSB ERA16LA073](https://openairdocs.org/ntsb/ERA16LA073.md): Cessna 310 · Kennesaw, GA · Accident · No injuries · Limited investigation · Final report · Dec 13, 2015 · N7675Q · Substantial damage
  > Inadequate inspection and rigging of the landing gear system, which resulted in the subsequent failure and collapse of the left main landing gear during landing.
- [NTSB WPR16LA015](https://openairdocs.org/ntsb/WPR16LA015.md): Cessna 310J · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Oct 10, 2015 · N3123L · Substantial damage
  > The insufficient right main landing gear (MLG) down-lock tension due to maintenance personnel's failure to perform a rigging procedure during the airplane's most recent inspection, which resulted in the right MLG collapsing during landing.
- [NTSB ERA15LA341](https://openairdocs.org/ntsb/ERA15LA341.md): Piper PA 28RT-201 · Russell Springs, KY · Accident · Minor injuries · Class 2 · Limited · Final report · Sep 4, 2015 · N8162S · Substantial damage
  > Maintenance personnel’s inadequate fuel injection servo maintenance due to an out-of-date AD list, which resulted in the fuel injection servo plug backing out of the threaded plug hole on the regulator cover of the fuel injection servo and subsequent total…
- [NTSB WPR15LA217](https://openairdocs.org/ntsb/WPR15LA217.md): Piper PA 28-181 · Las Vegas, NV · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 2015 · N8740E · Destroyed
  > The engine's inability to produce full-rated power due to wear on internal engine components, which resulted in a loss of altitude and subsequent landing on uneven terrain. Contributing to the accident was the airplane owner's failure to maintain the engine…
- [NTSB ERA15LA071](https://openairdocs.org/ntsb/ERA15LA071.md): Cessna 210 5(205) · Sussex, NJ · Accident · Minor injuries · Limited investigation · Final report · Dec 4, 2014 · N8296Z · Substantial damage
  > Maintenance personnel’s inadequate inspection of the No. 2 cylinder valve area during the most recent annual inspection, which resulted in the in-flight failure of the intake valve springs due to rust on the spring surfaces and subsequent fatigue cracking.
- [NTSB WPR15LA025](https://openairdocs.org/ntsb/WPR15LA025.md): Cessna 172S · Santa Monica, CA · Accident · No injuries · Limited investigation · Final report · Oct 26, 2014 · N353MV · Substantial damage
  > The separation of a section of a propeller blade due to fatigue cracking. Contributing to the accident was the operator’s failure to comply with the manufacturer’s maintenance and inspection instructions.
- [NTSB CEN14LA517](https://openairdocs.org/ntsb/CEN14LA517.md): Robinson Helicopter R22 Beta · Cahokia, IL · Accident · No injuries · Limited investigation · Final report · Sep 19, 2014 · N115DD · Substantial damage
  > The pilot’s poor decision to take off with the clutch warning light illuminated, which resulted in the total failure of the fan assembly due to a lack of lubrication. Contributing to the accident was the mechanic’s failure to lubricate the lower actuator…
- [NTSB CEN14LA485](https://openairdocs.org/ntsb/CEN14LA485.md): Cismowski Tierra II · Montevideo, MN · Accident · 2 fatal · Limited investigation · Final report · Sep 7, 2014 · N622MC · Substantial damage
  > The pilot's impaired judgment due to the use of marijuana, which led to his improper decision to fly the airplane over its maximum gross weight and his subsequent loss of airplane control during takeoff with gusting wind conditions.
- [NTSB CEN14LA331](https://openairdocs.org/ntsb/CEN14LA331.md): Cessna A188 · Arlington, TX · Accident · No injuries · Limited investigation · Final report · Jun 27, 2014 · N8157V · Substantial damage
  > The total loss of engine power due to a loose oil filter adapter, which resulted in oil starvation. Contributing to the accident was maintenance personnel’s failure to comply with a Federal Aviation Administration airworthiness directive.
- [NTSB ERA14LA308](https://openairdocs.org/ntsb/ERA14LA308.md): Taylor J-2 · Lock Haven, PA · Accident · No injuries · Limited investigation · Final report · Jun 20, 2014 · N16667 · Substantial damage
  > The airplane owner’s failure to clean and lubricate the engine valve guides and stems, which resulted in a partial loss of engine power during the initial climb due to an exhaust valve failure.
- [NTSB ERA14LA248](https://openairdocs.org/ntsb/ERA14LA248.md): Bell Helicopter Textron Canada 206 L4 · Beverly, MA · Accident · No injuries · Limited investigation · Final report · May 21, 2014 · N55SL · Substantial damage
  > Maintenance personnel’s inadequate inspection of the engine’s outer combustion case, which resulted in the failure of the case due to fatigue cracks that initiated on the inside surface of the case and the subsequent total loss of engine power.
- [NTSB ERA14LA108](https://openairdocs.org/ntsb/ERA14LA108.md): Enstrom F 28A · Memphis, TN · Accident · No injuries · Limited investigation · Final report · Jan 29, 2014 · N24RB · Substantial damage
  > A skid tube clamp weld failure due to high residual stress, which resulted in a skid collapse during landing. Contributing to the accident was the airplane manufacturer’s lack of adequate guidance for periodically inspecting the skid tube clamp.
- [NTSB ERA14LA107](https://openairdocs.org/ntsb/ERA14LA107.md): Piper PA-34-200 · West Palm Beach, FL · Accident · No injuries · Limited investigation · Final report · Jan 28, 2014 · N16389 · Substantial damage
  > The pilot/owner’s failure to maintain the airplane in accordance with a mandatory service bulletin and an airworthiness directive, which resulted in the nose landing gear collapse during landing.
- [NTSB WPR14FA068](https://openairdocs.org/ntsb/WPR14FA068.md): Cessna 208B · Kalaupapa, HI · Accident · 1 fatal · Field investigation · Final report · Dec 12, 2013 · N687MA · Destroyed
  > The loss of engine power due to the fracture of multiple blades on the compressor turbine wheel, which resulted in a ditching. The reason for the blade failures could not be determined due to secondary thermal damage to the blades.
- [NTSB CEN14LA058](https://openairdocs.org/ntsb/CEN14LA058.md): Piper PA 28-140 · San Antonio, TX · Accident · Serious injuries · Limited investigation · Final report · Nov 16, 2013 · N57DB · Substantial damage
  > A partial loss of engine power after departure due to the collapse of the carburetor air inlet duct, which restricted the airflow to the engine. Contributing to the accident was the overdue annual inspection and the installation of the improper air inlet duct.
- [NTSB WPR13LA404](https://openairdocs.org/ntsb/WPR13LA404.md): Bell 47G5 · King City, CA · Accident · No injuries · Limited investigation · Final report · Sep 11, 2013 · N7836S · Substantial damage
  > The failure of the helicopter’s center frame tube due to a fatigue crack and corrosion originating from a welded surface. Contributing to the accident was maintenance personnel’s inadequate inspection of the helicopter during its most recent 100-hour…
- [NTSB ERA13LA410](https://openairdocs.org/ntsb/ERA13LA410.md): Cessna 188B · Woodrow, SC · Accident · Minor injuries · Limited investigation · Final report · Sep 4, 2013 · N59JK · Substantial damage
  > A failure of the right rudder pedal arm due to corrosion as a result of inadequate maintenance and inspection of the rudder pedal assembly.
- [NTSB ERA13IA396](https://openairdocs.org/ntsb/ERA13IA396.md): Piper PA-28RT-201 · Chesapeake, VA · Incident · No injuries · Incident investigation · Final report · Aug 31, 2013 · N2091W · No damage
  > Maintenance personnel’s inadequate inspection and compliance with a Federal Aviation Administration airworthiness directive, which resulted in an undetected corroded and cracked stabilator turnbuckle and the subsequent failure of the turnbuckle and loss of…
- [NTSB ERA13IA267](https://openairdocs.org/ntsb/ERA13IA267.md): Piper PA-34-200T · Tallahassee, FL · Incident · No injuries · Incident investigation · Final report · Jun 3, 2013 · N633TC · No damage
  > The failure of the elevator trim cable due to fatigue cracking, which resulted from maintenance personnel’s repeated inadequate inspection of the cable.
- [NTSB CEN13CA190](https://openairdocs.org/ntsb/CEN13CA190.md): Mooney M20E · Middletown, OH · Accident · Serious injuries · Data collection · Final report · Mar 12, 2013 · N199Q · Substantial damage
  > The total loss of engine power due to fuel exhaustion, which resulted from the noncurrent pilot’s improper in-flight fuel management and decision-making and his decision to conduct the flight after consuming alcohol.
- [NTSB CEN13FA137](https://openairdocs.org/ntsb/CEN13FA137.md): Beech 95-B55 (T42A) · Mangum, OK · Accident · 3 fatal · Field investigation · Final report · Jan 19, 2013 · N143E · Substantial damage
  > The airplane's aerodynamic stall/spin at low altitude and subsequent impact with terrain for reasons that could not be determined during postaccident examinations. Contributing to the accident was the pilot's lack of currency/proficiency.
- [NTSB WPR13LA009](https://openairdocs.org/ntsb/WPR13LA009.md): Piper PA-38-112 · Corona, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 13, 2012 · N4309E · Substantial damage
  > Total loss of engine power during the landing approach due to insect debris in the carburetor metering valve, which resulted in fuel starvation.
- [NTSB WPR12LA423](https://openairdocs.org/ntsb/WPR12LA423.md): Barney Stardustrer SA-100 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Sep 17, 2012 · N1356Y · Substantial damage
  > A loss of engine power as a result of fuel exhaustion due to a fuel line failure. Contributing to the accident was the pilot’s failure to adhere to the maintenance inspection criteria for the airplane.
- [NTSB CEN12FA616](https://openairdocs.org/ntsb/CEN12FA616.md): Piper J3C-65 · Kingsland, TX · Accident · 1 fatal · Field investigation · Final report · Sep 8, 2012 · N70108 · Substantial damage
  > The pilot’s failure to maintain adequate airspeed following a partial loss of engine power resulting from an engine intake valve that became stuck open. Contributing to the accident was the pilot’s decision to operate the airplane when a required maintenance…

Next page: https://openairdocs.org/ntsb-findings/01010520/cases.md?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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01010520'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01010520/cases

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