# NTSB investigations: Manufacture/production, general

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 ERA24LA163](https://openairdocs.org/ntsb/ERA24LA163.md): Evektor-Aerotechnik A S Harmony LSA · Seffner, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 4, 2024 · N469JA · Substantial damage
  > The improper installation of the fuel line that connected the fuel pump to the four-way distributor, which resulted in fuel starvation when the line became disconnected.
- [NTSB DCA24LA330](https://openairdocs.org/ntsb/DCA24LA330.md): Boeing 737-8 · Kenner, LA · Incident · Class 2 · Limited · Final report · Dec 20, 2023 · N8830Q · Minor damage
  > A partial loss of engine power due to bird ingestion in the No. 1 (left) engine, which resulted in the activation of the load reduction device to prevent vibration. The load reduction device activation resulted in smoke and fumes entering the cockpit.
- [NTSB CEN23LA390](https://openairdocs.org/ntsb/CEN23LA390.md): Zlin Aviation S R O Savage Norden · Cabot, AR · Accident · No injuries · Class 3 · Limited · Final report · Aug 30, 2023 · N7373 · Substantial damage
  > The airplane manufacturer’s routing of the fuel pump wiring next to the engine’s turbocharger and exhaust, which thermally damaged the wiring and resulted in a malfunction of the fuel delivery system and a total loss of engine power.
- [NTSB WPR23LA255](https://openairdocs.org/ntsb/WPR23LA255.md): Avia Stroitel AC-5M · North Plains, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 5, 2023 · N40233 · Substantial damage
  > The pilot’s failure to maintain control of the motor glider, which resulted in an inflight overstress separation of the right wing during a high-speed, high-wing-load spiral dive recovery. Contributing to the accident was the inadequately manufactured wing…
- [NTSB CEN19LA159](https://openairdocs.org/ntsb/CEN19LA159.md): Lancair LC41 · Cleburne, TX · Accident · No injuries · Class 3 · Limited · Final report · May 30, 2019 · N2514F · Substantial damage
  > A total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect.
- [NTSB ENG19IA008](https://openairdocs.org/ntsb/ENG19IA008.md): Airbus A220 · Busan, South Korea · Incident · Class 3 · Incident · Final report · Dec 26, 2018 · HL8314 · No damage
  > The manufacturer’s inadequate cleaning of the crucible before melting the nickel alloy used in casting the low pressure turbine stage 3 blades that resulted in a casting anomaly from where an intergranular crack occurred became the origin of a fatigue crack…
- [NTSB WPR15LA184](https://openairdocs.org/ntsb/WPR15LA184.md): Eclipse EA500 · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Jun 12, 2015 · N508JA · Substantial damage
  > A manufacturing defect that resulted in fatigue failure of the left main landing gear trunnion.
- [NTSB WPR15LA109](https://openairdocs.org/ntsb/WPR15LA109.md): Bell/Garlick UH 1H · Shelton, WA · Accident · No injuries · Limited investigation · Final report · Feb 19, 2015 · N166DR · Substantial damage
  > The fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly.
- [NTSB WPR14LA046](https://openairdocs.org/ntsb/WPR14LA046.md): Rovey Jason H RV-8 · Wickenburg, AZ · Accident · No injuries · Limited investigation · Final report · Nov 2, 2013 · N391V · Substantial damage
  > The fatigue failure of a propeller pitch change pin due to excessive shot peening of the pin’s surface during the manufacturing process.
- [NTSB ERA13LA262](https://openairdocs.org/ntsb/ERA13LA262.md): Cessna 182P · Brevard, NC · Accident · Minor injuries · Limited investigation · Final report · May 30, 2013 · N6525M · Substantial damage
  > The cylinder manufacturer's misalignment of the exhaust valve guides in the No. 2 cylinder during manufacture, which resulted in the exhaust valve sticking and the pushrod breaking and the subsequent total loss of engine power.
- [NTSB CEN12IA498](https://openairdocs.org/ntsb/CEN12IA498.md): American Champion 8KCAB · Oshkosh, WI · Incident · No injuries · Incident investigation · Final report · Jul 26, 2012 · N60GK · No damage
  > The failure of the pilot’s seat bottom frame due to the manufacturer’s improper production, installation, and inspection of that seat bottom, which resulted in a temporary loss of control during an air show performance.
- [NTSB WPR11FA045](https://openairdocs.org/ntsb/WPR11FA045.md): Eurocopter AS350B2 · Pacoima, CA · Accident · No injuries · Field investigation · Final report · Nov 12, 2010 · N1231A · Substantial damage
  > The contamination of a spool bearing in the power turbine governor during manufacture, which led to the bearing’s failure in flight, a subsequent loss of engine power during departure, and the resultant hard landing.
- [NTSB ERA10TA493](https://openairdocs.org/ntsb/ERA10TA493.md): Bell 412 · Brooklyn, NY · Accident · Minor injuries · Final report · Sep 22, 2010 · N412PD · Substantial damage
  > The fatigue fracture of the reduction gearbox output drive gear, which resulted in the loss of power output from the engines to the helicopter rotor blade system and a subsequent forced landing. The fracture of the output drive gear was caused by a fatigue…
- [NTSB CEN10LA560](https://openairdocs.org/ntsb/CEN10LA560.md): Schweizer 269C · Schaumburg, IL · Accident · No injuries · Limited investigation · Final report · Sep 20, 2010 · N34LB · Substantial damage
  > The in-flight separation of the left aft cluster fitting assembly following the loss of torque on the lock nut due to a manufacturing defect.
- [NTSB WPR09LA253](https://openairdocs.org/ntsb/WPR09LA253.md): Gauchat Safari · Rock Springs, AZ · Accident · 2 fatal · Limited investigation · Final report · May 22, 2009 · N147MD · Substantial damage
  > The separation of the main rotor head during cruise flight as a result of cyclic fatigue of the main rotor head spindle. The fatigue crack was due to an inadequate manufacturing process.
- [NTSB WPR09FA234](https://openairdocs.org/ntsb/WPR09FA234.md): Upton Bakeng Duce · Ramona, CA · Accident · 2 fatal · Field investigation · Final report · May 9, 2009 · N86YP · Substantial damage
  > An in-flight separation of the right wing, which resulted from the pilot's performance of a maneuver that produced aerodynamic loads that exceeded the wing spar’s degraded strength. The wing spar strength degradation was due to the builder's failure to comply…
- [NTSB CHI08FA269](https://openairdocs.org/ntsb/CHI08FA269.md): Bell 206L-1 · Greensburg, IN · Accident · 3 fatal · Field investigation · Final report · Aug 31, 2008 · N37AE · Destroyed
  > The in-flight separation of a main rotor blade due to a fatigue failure of the blade spar, rendering the helicopter uncontrollable, and the manufacturer's production of main rotor blades with latent manufacturing defects, which precipitated the fatigue…

## 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", '04013000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/04013000/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.
