# NTSB investigations: Aircraft maintenance event

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 2 of 10 · 484 cases

## Cases, newest first

- [NTSB WPR23LA232](https://openairdocs.org/ntsb/WPR23LA232.md): Piper PA-28-140 · Rochester, NV · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 17, 2023 · N3508K · Substantial damage
  > A broken fuel line fitting that resulted in a total loss of engine power due to fuel starvation.
- [NTSB WPR23LA216](https://openairdocs.org/ntsb/WPR23LA216.md): Cessna 172R · Santa Monica, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 5, 2023 · N819KS · Substantial damage
  > A failure of the nose wheel upper torque link bolt, which resulted in a loss of steering control. Contributing to the accident were maintenance personnel’s failure to inspect and replace the fractured bolt and the pilot’s oversight of the bolt during his…
- [NTSB CEN23LA182](https://openairdocs.org/ntsb/CEN23LA182.md): Loehle Acft 5151 Mustang · Hector, MN · Accident · No injuries · Class 3 · Limited · Final report · May 11, 2023 · N91026 · Substantial damage
  > A total loss of engine power due to fuel starvation as a result of the pilot’s modifications to the fuel system. Contributing to the accident was the pilot’s decision to continue the takeoff despite observing lower than anticipated propeller rpm, his decision…
- [NTSB ERA23LA225](https://openairdocs.org/ntsb/ERA23LA225.md): Mooney M20K · Hillsborough Township, NJ · Accident · Minor injuries · Class 3 · Limited · Final report · May 6, 2023 · N262MK · Substantial damage
  > The partial loss of engine power due to maintenance personnel’s failure to ensure that the ignition harnesses were properly secured and the pilot’s inappropriate pitch control inputs, which resulted in the airplane exceeding its critical angle of attack and…
- [NTSB WPR23LA177](https://openairdocs.org/ntsb/WPR23LA177.md): Cessna 210M · Pasco, WA · Accident · No injuries · Class 3 · Limited · Final report · May 4, 2023 · N777CF · Substantial damage
  > Improper maintenance on the fuel outlet line to the fuel servo, which resulted in the line partially separating from the fuel outlet fitting and the subsequent fuel starvation and total loss of engine power.
- [NTSB CEN23LA166](https://openairdocs.org/ntsb/CEN23LA166.md): Protech PT2 · Columbia, MS · Accident · No injuries · Class 3 · Limited · Final report · Apr 25, 2023 · N44048 · Substantial damage
  > The pilot’s lack of proper maintenance, which allowed the fuel filters to become obstructed, leading to fuel starvation and a subsequent engine power loss.
- [NTSB ERA23LA202](https://openairdocs.org/ntsb/ERA23LA202.md): Rockwell International 112 · Miami, FL · Accident · No injuries · Class 3 · Limited · Final report · Apr 18, 2023 · N12RX · Substantial damage
  > Failure of the right main landing gear due to inadequate hydraulic pressure as result of a torn O-ring that was installed on the hydraulic pack’s check valve during overhaul.
- [NTSB CEN23LA165](https://openairdocs.org/ntsb/CEN23LA165.md): Pipistrel Lsa Sinus · Kingsford, MI · Accident · No injuries · Class 3 · Limited · Final report · Apr 13, 2023 · N413EK · Substantial damage
  > The failure of maintenance personnel to properly secure the left carburetor bowl cover, which resulted in an engine fire before takeoff.
- [NTSB WPR23LA149](https://openairdocs.org/ntsb/WPR23LA149.md): Stevens Kelly C RV-7 · Morgan, UT · Accident · No injuries · Class 3 · Limited · Final report · Apr 9, 2023 · N17NK · Substantial damage
  > The pilot/builder improperly torqued the propeller attachment bolts while reinstalling the propeller, which resulted in the fatigue failure of the bolts and the separation of the propeller assembly.
- [NTSB ERA23LA183](https://openairdocs.org/ntsb/ERA23LA183.md): Peterson Mark G Peterson A600 · Foley, AL · Accident · No injuries · Class 4 · Limited · Final report · Apr 6, 2023 · N272AM · Destroyed
  > The loss of engine power during the initial climb due to the disconnection of the turbocharger air intake hose and clamp, and the pilot’s inadequate servicing and preflight inspection of the turbocharger air intake clamp.
- [NTSB ERA23LA162](https://openairdocs.org/ntsb/ERA23LA162.md): Cessna 177 · Travelers Rest, SC · Accident · No injuries · Class 3 · Limited · Final report · Mar 23, 2023 · N13612 · Substantial damage
  > Maintenance personnel’s improper servicing of the magneto, which resulted in its accelerated wear, failure, and the total loss of engine power.
- [NTSB ERA23LA173](https://openairdocs.org/ntsb/ERA23LA173.md): Beech P35 · Perry, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 5, 2023 · N9777Y · Substantial damage
  > Maintenance personnel’s incorrect torquing of the oil filter adapter jam nut, resulting in the failure of the adapter threads, a complete loss of oil, and subsequent total loss of engine power.
- [NTSB ERA23LA120](https://openairdocs.org/ntsb/ERA23LA120.md): Mooney M20C · Calhoun, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 28, 2023 · N5587Q · Destroyed
  > A partial loss of engine power during the initial climb due to an improperly installed spark plug.
- [NTSB ERA23FA103](https://openairdocs.org/ntsb/ERA23FA103.md): Piper PA28 · Suffolk, VA · Accident · 2 fatal · Class 3 · Field · Final report · Jan 7, 2023 · N592FL · Destroyed
  > The pilot’s decision to fly the airplane without confirming it had been released from maintenance, which resulted in a partial loss of engine power due to loose magnetos. Contributing to the outcome was the pilot’s failure to maintain adequate airspeed and…
- [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 CEN23LA025](https://openairdocs.org/ntsb/CEN23LA025.md): Bell 206 · Greenville, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 3, 2022 · N61KH · Substantial damage
  > The mechanic’s failure to inspect and clean the entire fuel nozzle assembly in accordance with the engine maintenance manual, which resulted in fuel starvation and a partial loss of engine power, an autorotation, and a hard landing.
- [NTSB ERA23FA033](https://openairdocs.org/ntsb/ERA23FA033.md): Beech A24 · Keene, NH · Accident · 2 fatal · Class 3 · Field · Final report · Oct 21, 2022 · N8020R · Destroyed
  > Improper maintenance of the fuel injector nozzles and the pilots’ failure to abort the takeoff during the takeoff roll. Contributing to the accident was the mechanic’s decision to return the airplane to service with the engine unable to attain its full rated…
- [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 ERA23LA002](https://openairdocs.org/ntsb/ERA23LA002.md): Aeronca 7AC · Murray, KY · Accident · Serious injuries · Class 4 · Limited · Final report · Oct 2, 2022 · N3005E · Substantial damage
  > The incorrect (reverse) rigging of the elevator cables by maintenance personnel and their subsequent failure to verify that the rigging was correct during post-maintenance checks and the pilot's inadequate preflight check.
- [NTSB CEN22FA433](https://openairdocs.org/ntsb/CEN22FA433.md): Airgyro AG915 · Yankton, SD · Accident · 1 fatal · Class 3 · Field · Final report · Sep 27, 2022 · N499AG · Destroyed
  > A loss of control while an in-flight fire occurred, which resulted in an impact with terrain. Contributing to the accident was the pilot/builder’s improper engine build procedures.
- [NTSB CEN22FA419](https://openairdocs.org/ntsb/CEN22FA419.md): Piper PA-28R-201 · Conway, SC · Accident · 2 fatal · Class 3 · Field · Final report · Sep 14, 2022 · N62FC · Destroyed
  > The mechanic’s failure to install the required gasket on the vacuum pump drive pad in accordance with the maintenance manual, which resulted in oil exhaustion and the subsequent loss of engine power. Contributing to the accident was the Director of…
- [NTSB CEN22LA344](https://openairdocs.org/ntsb/CEN22LA344.md): Piper PA-32RT-300T · Dallas, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 28, 2022 · N3027J · Substantial damage
  > Maintenance personnel’s inadequate maintenance of the magneto, which resulted in a loss of engine ignition, a loss of engine power, and a subsequent forced landing.
- [NTSB ERA22FA320](https://openairdocs.org/ntsb/ERA22FA320.md): Knight AA Nieuport 28 · Basehor, KS · Accident · 1 fatal · Class 3 · Field · Final report · Jul 18, 2022 · N6170 · Destroyed
  > The pilot’s incorrect installation of the left-wing strut, which resulted in a loss of airplane control during takeoff and a subsequent aerodynamic stall and spin from which the pilot could not recover.
- [NTSB CEN22LA322](https://openairdocs.org/ntsb/CEN22LA322.md): Aero Commander 112 · Granbury, TX · Accident · No injuries · Class 3 · Limited · Final report · Jul 18, 2022 · N1181J · Substantial damage
  > The loss of engine power due to metal contamination within the cylinder following poor maintenance.
- [NTSB ERA22LA327](https://openairdocs.org/ntsb/ERA22LA327.md): Cessna 150 · Hanson, MA · Accident · No injuries · Class 4 · Limited · Final report · Jul 17, 2022 · N5859E · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard landing and partial loss of directional control. Contributing to the accident was the pilot’s improper decision to depart and land with a known mechanical deficiency with the nose landing gear.
- [NTSB ERA22LA317](https://openairdocs.org/ntsb/ERA22LA317.md): Cessna T210F · Monticello, NY · Accident · No injuries · Class 3 · Limited · Final report · Jul 15, 2022 · N6195R · Destroyed
  > Maintenance personnel’s improper torque of the engine through-bolts during maintenance, which resulted in a bearing shift, oil starvation, and a total loss of engine power.
- [NTSB CEN22FA298](https://openairdocs.org/ntsb/CEN22FA298.md): Piper PA-24-250 · St. Jacob, IL · Accident · 1 fatal · Class 3 · Field · Final report · Jul 2, 2022 · N5235P · Destroyed
  > The inadequate maintenance of the airplane fuel system that resulted in fuel exhaustion and a loss of engine power.
- [NTSB CEN22LA250](https://openairdocs.org/ntsb/CEN22LA250.md): Beech 58 · Evansville, IN · Incident · No injuries · Class 3 · Limited · Final report · Jun 8, 2022 · N78KL · Minor damage
  > The failure of the propeller blade due to high-cycle fatigue that originated from damage that occurred at an unknown time. Contributing to the accident was the failure to identify the damage before the accident flight.
- [NTSB CEN22LA233](https://openairdocs.org/ntsb/CEN22LA233.md): Beech A36 · Amarillo, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 4, 2022 · N9087S · Substantial damage
  > The loss of engine power due to a leak in the fuel control assembly. Contributing to the accident was the inadequate maintenance of the fuel control assembly.
- [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 ERA22LA241](https://openairdocs.org/ntsb/ERA22LA241.md): Evektor-Aerotechnik Sportstar · Lancaster, OH · Accident · No injuries · Class 3 · Limited · Final report · May 21, 2022 · N503RK · Substantial damage
  > The improper installation and subsequent failure of the pushrod O-rings, which resulted in failure of the No. 4 connecting rod due to oil starvation.
- [NTSB ERA22LA198](https://openairdocs.org/ntsb/ERA22LA198.md): Cessna 310 · Selma, AL · Accident · No injuries · Class 3 · Limited · Final report · Apr 13, 2022 · N7733Q · Substantial damage
  > The failure of maintenance personnel to properly rig the rudder trim system after reinstallation and pilot’s inadequate preflight inspection after recent maintenance, which resulted in an inability to adequately maintain directional control during the flight.
- [NTSB ERA22LA159](https://openairdocs.org/ntsb/ERA22LA159.md): Dwyer Michael D Q · Spring Hill, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 17, 2022 · N3QP · Destroyed
  > The pilot’s improper modification of the pull starter motor, which resulted in its failure and the subsequent loss of engine power.
- [NTSB CEN22LA146](https://openairdocs.org/ntsb/CEN22LA146.md): Hughes 369 · Adair, IA · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 17, 2022 · N500MZ · Substantial damage
  > The mechanic’s failure to properly torque a fuel control unit B-nut, which resulted in a partial loss of engine power, an attempted autorotation, and an impact with terrain.
- [NTSB ERA22FA126](https://openairdocs.org/ntsb/ERA22FA126.md): Beech 58 · Lexington, NC · Accident · 1 fatal · Class 3 · Field · Final report · Feb 16, 2022 · N58LF · Destroyed
  > Inadequate maintenance, which led to a partial loss of both right and left engine power during takeoff, and the pilot’s subsequent failure to maintain airspeed while maneuvering with one engine at low altitude. Contributing to the accident was the pilot’s…
- [NTSB CEN22LA060](https://openairdocs.org/ntsb/CEN22LA060.md): Piper PA-46-310P · Cassville, MO · Accident · No injuries · Class 4 · Limited · Final report · Dec 1, 2021 · N444DT · Substantial damage
  > The pilot’s failure to reinstall the nose landing gear linkage prior to the flight which resulted in a loss of directional control during landing.
- [NTSB ERA22LA080](https://openairdocs.org/ntsb/ERA22LA080.md): Piper PA-12 · Labelle, FL · Accident · Serious injuries · Class 4 · Limited · Final report · Nov 30, 2021 · N3098M · Substantial damage
  > The pilot’s improper fuel system modification, which resulted in a loss of engine power due to fuel exhaustion.
- [NTSB ERA22LA064](https://openairdocs.org/ntsb/ERA22LA064.md): Mooney M20M · Tampa, FL · Accident · No injuries · Class 3 · Limited · Final report · Nov 15, 2021 · N21890 · Substantial damage
  > The total loss of engine power due to the failure of maintenance personnel to properly tighten the fuel supply line b-nut at the manifold valve during installation.
- [NTSB ERA21LA356](https://openairdocs.org/ntsb/ERA21LA356.md): Waco GXE · Burt, NY · Accident · No injuries · Class 3 · Limited · Final report · Sep 13, 2021 · N8564 · Substantial damage
  > The improper magneto timing, which resulted in the engine’s inability to produce full power during the takeoff.
- [NTSB ERA21LA328](https://openairdocs.org/ntsb/ERA21LA328.md): Piper PA-28-140 · Orlando, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 17, 2021 · N98304 · Substantial damage
  > A total loss of engine power due to fuel starvation that resulted from improper maintenance of the fuel selector valve and fuel selector valve cover.
- [NTSB CEN21LA379](https://openairdocs.org/ntsb/CEN21LA379.md): Diamond Aircraft Industries DA-42 · Bellefontaine, OH · Accident · No injuries · Class 3 · Limited · Final report · Aug 17, 2021 · N215BN · Substantial damage
  > The improper position of the right engine’s fuel feed pump bolt, which led to a total loss of power on the right engine, and the left engine's partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB WPR21LA325](https://openairdocs.org/ntsb/WPR21LA325.md): Stout Garry V Europa - Trigear · Hanksville, UT · Accident · No injuries · Class 3 · Limited · Final report · Aug 16, 2021 · N133AC · Substantial damage
  > The pilot’s installation of a non-original equipment manufactured radiator cap, which resulted in the loss of coolant and the engine’s exceedance of the maximum admissible cylinder head temperature. Contributing to the accident was the lack of suitable…
- [NTSB CEN21LA358](https://openairdocs.org/ntsb/CEN21LA358.md): Cessna 182 · Patterson, LA · Accident · No injuries · Class 3 · Limited · Final report · Jul 27, 2021 · N148LP · Substantial damage
  > The mechanic’s failure to properly secure the throttle arm rendering it loose and inoperable after takeoff, which resulted in a total loss of engine power.
- [NTSB CEN21LA341](https://openairdocs.org/ntsb/CEN21LA341.md): Cessna T210F · Peyton, CO · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2021 · N6162R · Substantial damage
  > The pilot’s fuel mismanagement that resulted in a complete loss of engine power during climb and subsequent impact with terrain during a forced landing.
- [NTSB ERA21LA297](https://openairdocs.org/ntsb/ERA21LA297.md): Cessna 150 · Arden, NC · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2021 · N3059X · Substantial damage
  > The inadequate inspection of the throttle control cable assembly, which resulted in a partial loss of engine power during cruise flight.
- [NTSB CEN21LA326](https://openairdocs.org/ntsb/CEN21LA326.md): Gary James Lail Zenith CH 750 Cruzer · Blossom, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 17, 2021 · N9667Z · Substantial damage
  > The improper swaging of the rudder control cable, which disconnected during flight and resulted in the loss of control.
- [NTSB CEN21LA319](https://openairdocs.org/ntsb/CEN21LA319.md): Air Tractor AT-401 · Carroll, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 13, 2021 · N7315P · Substantial damage
  > The wear-related failure of the airframe fuel boost pump, which resulted in fuel starvation and a loss of engine power.
- [NTSB ENG21WA028](https://openairdocs.org/ntsb/ENG21WA028.md): Boeing 787 · London, United Kingdom · Accident · Minor injuries · Class 5 · Foreign · Jun 18, 2021 · G-ZBJB · Minor damage
- [NTSB CEN21FA272](https://openairdocs.org/ntsb/CEN21FA272.md): Antenor Velazco Lancair Evolution · Parker, CO · Accident · 2 fatal · Class 3 · Field · Final report · Jun 16, 2021 · N704AK · Destroyed
  > The pilot’s diversion of attention following an asymmetric flap deployment, which resulted in a descent and collision with powerlines. Contributing to the accident was maintenance personnel’s failure to properly secure the flap control rod attachment bolts,…
- [NTSB ERA21LA250](https://openairdocs.org/ntsb/ERA21LA250.md): Diamond DA20 · Matthews, VA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 14, 2021 · N458MA · Substantial damage
  > The mechanic’s failure to properly secure the oil sump drain plug during a 100-hour maintenance inspection, which resulted in a total loss of engine power due to oil starvation.

Next page: https://openairdocs.org/ntsb-events/040/sequence.md?page=3

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '040' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/040/sequence?page=2

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