# Fabrication - Type: NTSB finding subsection - Path: [Personnel issues](https://openairdocs.org/ntsb-findings/02) › [Task performance](https://openairdocs.org/ntsb-findings/0206) › [Maintenance](https://openairdocs.org/ntsb-findings/020620) › Fabrication - NTSB code: 02062025 - Cases: 30 - In the probable cause: 26 - Fatal cases: 7 - All cases: https://openairdocs.org/ntsb-findings/02062025/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/02062025/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/02062025 ## Cases per year (in the probable cause / all) - 2008: 2 / 2 - 2009: 2 / 2 - 2010: 2 / 2 - 2011: 4 / 4 - 2012: 1 / 1 - 2014: 2 / 3 - 2015: 2 / 2 - 2016: 2 / 3 - 2017: 1 / 1 - 2018: 1 / 2 - 2019: 1 / 1 - 2021: 2 / 3 - 2022: 1 / 1 - 2023: 1 / 1 - 2024: 2 / 2 ## Defining events in these cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 5 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 4 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 4 cases - [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 3 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 3 cases - [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 2 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 2 cases - [Abrupt maneuver](https://openairdocs.org/ntsb-events/270): 1 cases - [Fuel starvation](https://openairdocs.org/ntsb-events/191): 1 cases - [Fuel related](https://openairdocs.org/ntsb-events/190): 1 cases ## Aircraft models (registry) - [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3): 2 cases - [Stinson 108-3](https://openairdocs.org/model/stinson-108-3): 1 cases - [Sorensen Danny PITTS S1-S](https://openairdocs.org/model/sorensen-danny-pitts-s1-s): 1 cases - [Piper PA-18](https://openairdocs.org/model/piper-pa-18): 1 cases - [Cessna 175A](https://openairdocs.org/model/cessna-175a): 1 cases - [Pipistrel Lsa S R L ALPHA TRAINER](https://openairdocs.org/model/pipistrel-lsa-s-r-l-alpha-trainer): 1 cases - [Norman Me CHALLENGER IISPECIAL](https://openairdocs.org/model/norman-me-challenger-iispecial): 1 cases - [Wright B Flyer WRIGHT B FLYER](https://openairdocs.org/model/wright-b-flyer-wright-b-flyer): 1 cases - [Soto William J CH701](https://openairdocs.org/model/soto-william-j-ch701): 1 cases - [Gary James Lail ZENITH CH 750 CRUZER](https://openairdocs.org/model/gary-james-lail-zenith-ch-750-cruzer): 1 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 5 cases - [Performance/control parameters, general](https://openairdocs.org/ntsb-findings/01062000) (Aircraft): 4 cases - [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 3 cases - [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 2 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 2 cases - [Fasteners](https://openairdocs.org/ntsb-findings/01071430) (Aircraft): 2 cases - [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 2 cases - [Recip eng cyl section](https://openairdocs.org/ntsb-findings/01058530) (Aircraft): 2 cases - [Propeller assembly](https://openairdocs.org/ntsb-findings/01046110) (Aircraft): 2 cases - [Wing structure, general](https://openairdocs.org/ntsb-findings/01035700) (Aircraft): 2 cases ## Newest cases - [NTSB CEN24LA317](https://openairdocs.org/ntsb/CEN24LA317), Aug 15, 2024: Vans RV8 (N184DC), Guthrie, OK, substantial damage. Probable cause: A loss of engine power due to the separation and ingestion of an air filter retaining bracket into the engine cylinder. - [NTSB ERA24LA195](https://openairdocs.org/ntsb/ERA24LA195), Apr 27, 2024: Reddick Jonathan L Zodiac 601XLB (N601DR), Dunbar, PA, destroyed. Probable cause: A total loss of engine power as a result of an improperly fabricated fuel-air mixture cable bracket. Contributing was the pilot’s decision to fly the airplane with a known mechanical engine issue,… - [NTSB CEN24LA038](https://openairdocs.org/ntsb/CEN24LA038), Nov 14, 2023: Bede BD-4 (N931AS), Lowell, IN, substantial damage. Probable cause: Fatigue cracking of the propeller blade root, which resulted in the in-flight separation of the propeller blade from its root. Contributing to the accident was the improper machining of the blade… - [NTSB WPR22FA169](https://openairdocs.org/ntsb/WPR22FA169), Apr 30, 2022: Bearhawk LSA (N1908A), Kalispell, MT, substantial damage, 2 fatal. Probable cause: An excessive pitch control input for undetermined reasons while the airplane was operating above maneuvering speed, which led to a structural failure of the right wing during cruise flight.… - [NTSB CEN21LA326](https://openairdocs.org/ntsb/CEN21LA326), Jul 17, 2021: Gary James Lail Zenith CH 750 Cruzer (N9667Z), Blossom, TX, substantial damage. Probable cause: The improper swaging of the rudder control cable, which disconnected during flight and resulted in the loss of control. - [NTSB CEN21LA241](https://openairdocs.org/ntsb/CEN21LA241), May 28, 2021: Pipistrel Alpha Trainer (N119JP), Fort Collins, CO, substantial damage. Probable cause: A partial loss of engine power due to the failure of the throttle control cable, which resulted in the loss of control of the dual carburetor system. The cable failure was a result of improper… - [NTSB WPR21LA108](https://openairdocs.org/ntsb/WPR21LA108), Feb 8, 2021: Abbett Gerry Lancair Evolution (N7569A), Saratoga, WY, substantial damage. Probable cause: A windshield failure during cruise flight due to stress concentrations in the bond area as a result of improper assembly of the windshield. - [NTSB WPR20LA035](https://openairdocs.org/ntsb/WPR20LA035), Nov 29, 2019: Zenith Stol CH701 (N701WJ), Byron, CA, substantial damage. Probable cause: The pilot/builder's improper construction of the cowling, which resulted in inadequate venting of the engine, its overheating, and a partial loss of engine power. - [NTSB WPR18FA260](https://openairdocs.org/ntsb/WPR18FA260), Sep 12, 2018: Robert L Coons RotorWay RW 1 (N166LC), Billings, MT, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain clearance with a hangar while maneuvering to his hangar. Contributing to the accident was the pilot's limited experience in helicopters. - [NTSB ERA18FA240](https://openairdocs.org/ntsb/ERA18FA240), Sep 1, 2018: Lance M Hooley Jetez (N815EY), Covington, TN, destroyed, 1 fatal. Probable cause: The improper manufacture of the left wing, which resulted in a left wing flutter event and failure at low altitude and high speed. NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted. Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1). NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names. --- 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.