# NTSB investigations: Maintenance/inspections

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 5 · 206 cases

## Latest cases

- [NTSB ERA25LA064](https://openairdocs.org/ntsb/ERA25LA064.md): AMS Flight D O O Carat A · Centralhatchee, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 20, 2024 · N17GF · Substantial damage
  > Maintenance personnel’s failure to comply with the engine manufacturer’s guidance, which resulted in improper valvetrain clearances, unseating of the intake valve keepers, and a total loss of engine power.
- [NTSB ERA25LA012](https://openairdocs.org/ntsb/ERA25LA012.md): Piper PA28 · Louisville, KY · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 11, 2024 · N5006W · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN25LA013](https://openairdocs.org/ntsb/CEN25LA013.md): Rotorway Exec · Plymouth, IN · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 11, 2024 · N314AC · Substantial damage
  > A loss of control due to the failed forward tail rotor belt as a result of the owner’s failure to follow the helicopter manufacturer’s tail rotor belt replacement recommendations.
- [NTSB WPR24LA260](https://openairdocs.org/ntsb/WPR24LA260.md): Kitfox Series V · La Grande, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2024 · N53562 · Substantial damage
  > Separation of the propeller blades from progressive damage at the blade roots due to overtightening of the hub bolts.
- [NTSB ERA24FA301](https://openairdocs.org/ntsb/ERA24FA301.md): Cessna 402B · Aguadilla, PR · Accident · 1 fatal · Class 3 · Field · Final report · Jul 11, 2024 · N4167G · Destroyed
  > The pilot’s decision to operate the airplane with known maintenance discrepancies, which resulted in a total loss of right engine power. Contributing to the outcome was the pilot’s failure to maintain airspeed while returning to the airport with a single…
- [NTSB CEN24LA315](https://openairdocs.org/ntsb/CEN24LA315.md): Grumman American Avn. AA-5B · Camdenton, MO · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2024 · N23JK · Substantial damage
  > The inadequate maintenance of the seat locking mechanism, which resulted in the pilot’s seat sliding back during takeoff and a subsequent loss of control.
- [NTSB CEN23LA363](https://openairdocs.org/ntsb/CEN23LA363.md): Beech C-99 · Lansing, MI · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 15, 2023 · N261SW · Substantial damage
  > The pilot’s failure to properly set the rudder trim position which resulted in a loss of directional control during takeoff. Contributing was the pilot’s inadequate checklist procedures prior to takeoff.
- [NTSB CEN23FA314](https://openairdocs.org/ntsb/CEN23FA314.md): Piper PA-31P · Kearney, MO · Accident · 1 fatal · Class 3 · Field · Final report · Jul 20, 2023 · N200RA · Destroyed
  > The pilot’s decision to operate an airplane with known fuel leaks, his failure to conduct an engine run-up before takeoff, his subsequent failure to abort the takeoff, and the mechanic’s inadequate maintenance, which resulted in a partial loss of right engine…
- [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 ENG23LA030](https://openairdocs.org/ntsb/ENG23LA030.md): Gulfstream Aerospace G-IV · Sioux City, IA · Incident · No injuries · Class 3 · Limited · Final report · Jun 17, 2023 · N926TT · Minor damage
  > A No. 2 (right) engine failure due to a spinner fairing separation and subsequent impact with the fan blades that resulted in a midspan fracture of one fan blade. The spinner fairing separated as a result of a fatigue crack that originated from the heat…
- [NTSB ERA23LA218](https://openairdocs.org/ntsb/ERA23LA218.md): Piper PA-28-180 · Greenville, NC · Accident · Serious injuries · Class 3 · Limited · Final report · May 5, 2023 · N180LR · Substantial damage
  > Inadequate maintenance by the operator and maintenance personnel, which resulted in a loss of engine power due to oil starvation.
- [NTSB WPR23LA160](https://openairdocs.org/ntsb/WPR23LA160.md): Remos Remos GX · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Apr 18, 2023 · N21GX · Substantial damage
  > A total loss of engine power caused by fatigue cracking and fracture of the crankshaft. Contributing to the accident was the operator’s failure to properly maintain the airplane.
- [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 ERA23LA086](https://openairdocs.org/ntsb/ERA23LA086.md): Beech A36 · Covington, GA · Accident · No injuries · Class 3 · Limited · Final report · Dec 8, 2022 · N900AW · Substantial damage
  > A total loss of engine power due to oil starvation as a result of engine operation with low oil pressure. Contributing to the accident was the failure of two separate maintenance facilities to comply with guidance from the engine manufacturer to disassemble…
- [NTSB CEN23LA040](https://openairdocs.org/ntsb/CEN23LA040.md): Cessna 150L · Cypress, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 20, 2022 · N10612 · Substantial damage
  > Failure of the engine exhaust valve during cruise flight, which resulted in a loss of engine power and a forced landing.
- [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 ERA22LA242](https://openairdocs.org/ntsb/ERA22LA242.md): Aeronca 7EC · Putnam Valley, NY · Accident · No injuries · Class 3 · Limited · Final report · May 25, 2022 · N7410B · Substantial damage
  > A total loss of engine power during cruise flight due to fuel starvation resulting from obstructed forward and aft vent outlets in the left fuel tank.
- [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 WPR22LA149](https://openairdocs.org/ntsb/WPR22LA149.md): Dietrich Ryan S-4 Coyote 1 · Chula Vista, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 8, 2022 · N3156D · Substantial damage
  > The pilot/owner and maintenance personnel’s improper installation of the right wing’s aft lift strut to the right wing, which resulted in a loss of lift during takeoff, an uncommanded right roll, and an impact with terrain.
- [NTSB ERA22LA139](https://openairdocs.org/ntsb/ERA22LA139.md): Cessna 152 · Madisonville, TN · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 28, 2022 · N68218 · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB ERA22LA117](https://openairdocs.org/ntsb/ERA22LA117.md): Hughes 369D · Bel Air, MD · Accident · No injuries · Class 3 · Limited · Final report · Feb 9, 2022 · N9159F · Substantial damage
  > A loss of engine power due to bearing failures in the turbine section resulting from a fatigue fracture of the oil supply line that fed oil to the Nos. 6 and 7 bearings. The oil line failure led to rapid deterioration of the bearings from oil starvation.…
- [NTSB WPR22LA090](https://openairdocs.org/ntsb/WPR22LA090.md): Textron TTX Inc. T240 · Ravendale, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 28, 2022 · N420WT · Substantial damage
  > The inadequate maintenance and inspection of the engine induction system, which resulted in the separation of the right induction tube from the turbocharger compressor outlet and the subsequent loss of engine power during departure.
- [NTSB CEN22LA068](https://openairdocs.org/ntsb/CEN22LA068.md): CHR International Safari 400 · McKinney, TX · Accident · Serious injuries · Class 4 · Limited · Final report · Dec 9, 2021 · N666JS · Substantial damage
  > The pilot did not remove the cyclic control lock during preflight, which resulted in a loss of control during the initial hover.
- [NTSB WPR22LA005](https://openairdocs.org/ntsb/WPR22LA005.md): Beech B36TC · Los Banos, CA · Accident · No injuries · Class 3 · Limited · Final report · Oct 9, 2021 · N7220B · Substantial damage
  > The total loss of engine power due to the improper installation of the No. 4 connecting rod bolt nut during a recent overhaul.
- [NTSB ERA21LA170](https://openairdocs.org/ntsb/ERA21LA170.md): Mooney M20C · College Park, MD · Accident · No injuries · Class 3 · Limited · Final report · Apr 3, 2021 · N2953L · Substantial damage
  > Improper maintenance of the airplane by its owners and their failure to have qualified maintenance personnel determine the root cause of water infiltration into the fuel system. Also causal was the pilot’s inadequate preflight inspection, which failed to…
- [NTSB CEN21LA138](https://openairdocs.org/ntsb/CEN21LA138.md): Cessna 182F · Millville, IA · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 24, 2021 · N3209U · Substantial damage
  > The inadequate maintenance/inspection of the airplane, which resulted in a total loss of engine power due to oil starvation.
- [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 CEN20CA139](https://openairdocs.org/ntsb/CEN20CA139.md): Rans S-12 Airaile · Hillrose, CO · Accident · Serious injuries · Data collection · Final report · Apr 4, 2020 · UNREG · Substantial damage
  > The noncertificated pilot's diverted attention while looking at a fire during low-altitude flying, which resulted in a collision with power lines.
- [NTSB CEN20LA041](https://openairdocs.org/ntsb/CEN20LA041.md): Cessna 525A · Scotts Bluff, NE · Accident · No injuries · Class 3 · Limited · Final report · Dec 18, 2019 · CGOJG · Substantial damage
  > The installation of incorrect mounting hardware to secure the right engine cowl, which resulted in an in-flight separation and impact with the horizontal stabilizer and elevator.
- [NTSB CEN19FA279](https://openairdocs.org/ntsb/CEN19FA279.md): Aero Commander 200 · Howell, MI · Accident · 2 fatal · Class 3 · Field · Final report · Aug 20, 2019 · N200HS · Substantial damage
  > The improper installation of the engine’s metal intake screen, which allowed the filter element to become displaced and subsequently lodge in the intake, blocking intake air and causing the total loss of engine power, at low altitude and low airspeed…
- [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 WPR19LA128](https://openairdocs.org/ntsb/WPR19LA128.md): Beech 35 · Sedona, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 1, 2019 · N6864Q · Substantial damage
  > The partial loss of engine power due to deteriorated O-rings in the throttle metering assembly. Contributing to the accident was non-compliance with the manufacturer's recommended throttle metering assembly overhaul schedule.
- [NTSB ERA19LA143](https://openairdocs.org/ntsb/ERA19LA143.md): Cessna 175 · Edgefield, SC · Accident · No injuries · Class 3 · Limited · Final report · Apr 4, 2019 · N7622M · Substantial damage
  > The total loss of engine power due to a stuck engine exhaust valve. Contributing to the loss of engine power was the pilot’s failure to properly address the recurring stuck exhaust valve issue.
- [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 ANC18LA058](https://openairdocs.org/ntsb/ANC18LA058.md): Robinson R44 · Bettles, AK · Accident · No injuries · Limited investigation · Final report · Jul 29, 2018 · N744AK · Substantial damage
  > Maintenance personnel's application of insufficient preload on the attachment hardware for the idler gear shaft during engine overhaul, which resulted in the dismounting of the idler gear shaft assembly due to wear and deformation and the subsequent total…
- [NTSB ERA18LA181](https://openairdocs.org/ntsb/ERA18LA181.md): Beech 35B33 · Berlin, MD · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 29, 2018 · N9745Y · Substantial damage
  > The failure of the No. 3 cylinder exhaust valve, which resulted in the total loss of engine power during takeoff.
- [NTSB ERA18LA163](https://openairdocs.org/ntsb/ERA18LA163.md): Vans RV4 · Butler, PA · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 2018 · N7765X · Substantial damage
  > The pilot's improper decision to fly the airplane with a known engine problem and his improper modification of the engine control unit fuel delivery software, which led to the engine running too lean and resulted in a total loss of engine power during climb.
- [NTSB CEN18LA114](https://openairdocs.org/ntsb/CEN18LA114.md): Beech 77 · Odessa, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 1, 2018 · N6699B · Substantial damage
  > The pilot’s improper takeoff procedures and his failure to abort the takeoff, which resulted in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot’s lack of experience in the airplane.
- [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 CEN18CA072](https://openairdocs.org/ntsb/CEN18CA072.md): Bell Helicopter Textron Canada 407 · Norfolk, NE · Accident · No injuries · Data collection · Final report · Jan 5, 2018 · N214AM · Substantial damage
  > Maintenance personnel’s failure to properly secure the tail rotor drive shaft cover, which resulted in the cover departing the helicopter in 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 CEN17LA368](https://openairdocs.org/ntsb/CEN17LA368.md): Eris E. Ervin Quicksilver · Cleburne, TX · Accident · 1 fatal · Limited investigation · Final report · Sep 25, 2017 · N5112S · Destroyed
  > An engine loss of power due to fuel starvation from a broken fuel line between the fuel tank and the engine; the loss of engine power prevented the pilot from reaching a suitable landing area. Contributing to the accident was the inadequate maintenance of the…

Next page: https://openairdocs.org/ntsb-findings/010105/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", '010105'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/010105/cases

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