# NTSB investigations: Maintenance records

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 WPR23LA107](https://openairdocs.org/ntsb/WPR23LA107.md): Bell OH-58A · Yuma, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 7, 2023 · N36FA · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB DCA22MA193](https://openairdocs.org/ntsb/DCA22MA193.md): Dehavilland DHC-3 · Freeland, WA · Accident · 10 fatal · Class 1 · Major · Final report · Sep 4, 2022 · N725TH · Destroyed
  > The in-flight unthreading of the clamp nut from the horizontal stabilizer trim actuator barrel due to a missing lock ring, which resulted in the horizontal stabilizer moving to an extreme trailing-edge-down position rendering the airplane’s pitch…
- [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 ANC18LA018](https://openairdocs.org/ntsb/ANC18LA018.md): Costruzioni Aeronautiche Tecna P2006 · Lynchburg, VA · Accident · No injuries · Class 2 · Limited · Final report · Jan 1, 2018 · N594MA · Substantial damage
  > The failure of the left main landing gear assembly due to a fatigue fracture along the inside circumferential weld on the trailing arm’s attachment flange, which resulted from the manufacturer’s inadequate welding of the trailing arm connecting the lower arm…
- [NTSB CEN15LA345](https://openairdocs.org/ntsb/CEN15LA345.md): Air Tractor AT 401 · Nekoosa, WI · Accident · No injuries · Limited investigation · Final report · Aug 5, 2015 · N1539U · Substantial damage
  > The pilot’s inadequate preflight planning, which resulted in his attempt to take off for the agricultural application flight with the airplane over its maximum gross weight in high-density altitude conditions and led to the airplane’s degraded climb…
- [NTSB WPR15FA121](https://openairdocs.org/ntsb/WPR15FA121.md): Ryan Aeronautical ST3KR · Santa Monica, CA · Accident · Serious injuries · Field investigation · Final report · Mar 5, 2015 · N53178 · Substantial damage
  > A total loss of engine power during initial climb when the carburetor main metering jet became unseated, which led to an extremely rich fuel-to-air ratio. Contributing to the accident was the lack of adequate carburetor maintenance instructions. Contributing…
- [NTSB CEN15LA156](https://openairdocs.org/ntsb/CEN15LA156.md): Agusta Aerospace AW119 Mkii · Gulf of Mexico · Accident · No injuries · Limited investigation · Final report · Feb 20, 2015 · N802SM · Substantial damage
  > The fracture of the tail rotor pitch change link due to excessive bearing rotational friction, which resulted from the bearings being installed in exceedance of the maximum allowable torque during the last overhaul of the pitch change link.
- [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 CEN12LA525](https://openairdocs.org/ntsb/CEN12LA525.md): Bell 214ST · Avalon, TX · Accident · No injuries · Limited investigation · Final report · Aug 7, 2012 · N409SB · Substantial damage
  > Maintenance personnel’s failure to properly torque the retaining nut and install the cotter pin that secured the helicopter’s tail rotor counterweight bellcrank. Contributing to the accident was the lack of detailed maintenance records that documented…
- [NTSB CEN12LA343](https://openairdocs.org/ntsb/CEN12LA343.md): Schweizer 269C · Denver, CO · Accident · No injuries · Limited investigation · Final report · Jun 2, 2012 · N2196F · Substantial damage
  > The inadequately overhauled landing gear dampers that allowed initiation of a ground resonance event from which the pilot was unable to recover. Contributing to the accident was the overhaul facility's failure to identify the overcharged dampers and a lack of…
- [NTSB CEN12LA353](https://openairdocs.org/ntsb/CEN12LA353.md): Schweizer 269C-1 · Chesterfield, MO · Accident · No injuries · Limited investigation · Final report · May 26, 2012 · N345MH · Substantial damage
  > The undercharged and overcharged landing gear dampers, which allowed initiation of the ground resonance event from which the pilot was unable to recover due to his limited experience in helicopters. Contributing to the accident was the ineffective damper…
- [NTSB CEN12LA220](https://openairdocs.org/ntsb/CEN12LA220.md): Cirrus Design SR22T · Addison, TX · Accident · No injuries · Limited investigation · Final report · Mar 23, 2012 · N229TX · Substantial damage
  > Maintenance personnel’s improper maintenance, which resulted in the incorrect wiring of the No. 1 alternator and a subsequent electrical system fire during taxi. Contributing to the accident was the airplane manufacturer's inadequate maintenance documentation…
- [NTSB WPR12LA115](https://openairdocs.org/ntsb/WPR12LA115.md): Texas Helicopter OH-13E/M74 · Farmington, CA · Accident · Serious injuries · Limited investigation · Final report · Feb 22, 2012 · N43921 · Substantial damage
  > The in-flight separation of the wood portion of one main rotor blade while maneuvering at low level, the reason for which could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA10FA502](https://openairdocs.org/ntsb/ERA10FA502.md): Cessna 172 · Chatsworth, GA · Accident · 2 fatal · Field investigation · Final report · Sep 25, 2010 · N84249 · Substantial damage
  > The pilot's inadequate flight planning and in-flight fuel management resulting in a total loss of engine power due to fuel exhaustion. Contributing to the accident was the operator's failure to ensure aircraft records pertaining to engine modifications and…
- [NTSB CHI08LA272](https://openairdocs.org/ntsb/CHI08LA272.md): Socata TB-20 Trinidad · Cassville, WI · Accident · 1 fatal · Limited investigation · Final report · Sep 3, 2008 · N597TB · Substantial damage
  > The left seat pilot's failure to maintain control of the airplane during a go-around and the inadvertent in-flight opening of the cabin door for undetermined reasons. Contributing to the accident was the distraction of the door opening.
- [NTSB NYC08LA201](https://openairdocs.org/ntsb/NYC08LA201.md): Piper PA-18-135 · Myrtle Beach, SC · Accident · Minor injuries · Limited investigation · Final report · May 31, 2008 · N802DA · Substantial damage
  > A loss of engine power due to thermally-induced failure of a piston. Contributing to the accident was the sustained engine exposure to abnormally high operating temperatures and detonation, and the exceedance of the engine manufacturer's recommended overhaul…

## 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", '04033025'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/04033025/cases

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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.
