# Replacement - 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) › Replacement - NTSB code: 02062020 - Cases: 70 - In the probable cause: 65 - Fatal cases: 10 - All cases: https://openairdocs.org/ntsb-findings/02062020/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/02062020/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/02062020 ## Cases per year (in the probable cause / all) - 2008: 4 / 4 - 2010: 3 / 3 - 2011: 4 / 4 - 2012: 6 / 6 - 2013: 9 / 9 - 2014: 6 / 6 - 2015: 4 / 4 - 2016: 2 / 2 - 2017: 6 / 7 - 2019: 3 / 5 - 2020: 3 / 3 - 2021: 5 / 5 - 2022: 4 / 4 - 2023: 1 / 2 - 2024: 4 / 5 - 2025: 1 / 1 ## Defining events in these cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 21 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 10 cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 9 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 7 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 6 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 3 cases - [Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150): 3 cases - [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 2 cases - [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 2 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 2 cases ## Aircraft models (registry) - [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 2 cases - [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac): 2 cases - [Cessna U206G](https://openairdocs.org/model/cessna-u206g): 2 cases - [Cessna U206F](https://openairdocs.org/model/cessna-u206f): 2 cases - [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181): 2 cases - [S N I A S AS-350B ECUREUIL](https://openairdocs.org/model/s-n-i-a-s-as-350b-ecureuil): 1 cases - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 1 cases - [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 1 cases - [Piper PA-46-310P](https://openairdocs.org/model/piper-pa-46-310p): 1 cases - [Piper PA-36-300](https://openairdocs.org/model/piper-pa-36-300): 1 cases ## Other findings in the same cases - [Recip eng cyl section](https://openairdocs.org/ntsb-findings/01058530) (Aircraft): 10 cases - [Recip engine power section](https://openairdocs.org/ntsb-findings/01058520) (Aircraft): 9 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 5 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 5 cases - [Fuel distribution](https://openairdocs.org/ntsb-findings/01022820) (Aircraft): 4 cases - [Scheduled/routine inspection](https://openairdocs.org/ntsb-findings/02061520) (Personnel issues): 3 cases - [Post maintenance inspection](https://openairdocs.org/ntsb-findings/02061515) (Personnel issues): 3 cases - [Oil](https://openairdocs.org/ntsb-findings/01071020) (Aircraft): 3 cases - [Directional control](https://openairdocs.org/ntsb-findings/01062020) (Aircraft): 3 cases - [Recip eng oil sys](https://openairdocs.org/ntsb-findings/01058550) (Aircraft): 3 cases ## Newest cases - [NTSB CEN25LA077](https://openairdocs.org/ntsb/CEN25LA077), Jan 15, 2025: Piper PA-28-181 (N504AF), Addison, TX, substantial damage. Probable cause: A partial loss of engine power during takeoff due to the partial blockage of the fuel diaphragm metering stem and the No. 1 cylinder fuel injector nozzle. Contributing to the accident was maintenance… - [NTSB CEN25FA056](https://openairdocs.org/ntsb/CEN25FA056), Dec 8, 2024: Zenith Zodiac CH601 (N9853M), Columbia, IL, destroyed. Probable cause: The pilot’s failure to secure the engine oil filter following maintenance, which resulted in oil starvation, a total loss of engine power, and impact with terrain. - [NTSB CEN25LA018](https://openairdocs.org/ntsb/CEN25LA018), Oct 17, 2024: Piper PA-32R-301 (N81481), Van, TX, substantial damage. Probable cause: The mechanic’s improper maintenance of the engine’s air induction scat duct, which collapsed during the flight and resulted in a loss of engine power. - [NTSB CEN25LA013](https://openairdocs.org/ntsb/CEN25LA013), Oct 11, 2024: Rotorway Exec (N314AC), Plymouth, IN, substantial damage. Probable cause: 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 CEN24LA337](https://openairdocs.org/ntsb/CEN24LA337), Sep 2, 2024: Piper PA-28-140 (N32435), East Troy, WI, substantial damage. Probable cause: The pilot/mechanic’s improper torquing of the fuel hose fitting while replacing the fuel pump, which allowed air to enter the fuel system and resulted in a loss of engine power during initial climb.… - [NTSB CEN24LA115](https://openairdocs.org/ntsb/CEN24LA115), Feb 14, 2024: Beech 400 (N95GK), Bentonville, AR, substantial damage. Probable cause: Improper rigging of the elevator cable over the upper guard pin, which resulted in a cable separation and loss of elevator control. - [NTSB ENG23LA031](https://openairdocs.org/ntsb/ENG23LA031), Jun 28, 2023: Boeing 737-9 (N37516), Newark, NJ, incident, minor damage. Probable cause: A No. 1 (left) engine fire due a fuel leak that originated from the fuel nozzle 17 b-nut connection that was not properly torqued in accordance with the aircraft maintenance manual procedure. - [NTSB WPR23LA216](https://openairdocs.org/ntsb/WPR23LA216), Jun 5, 2023: Cessna 172R (N819KS), Santa Monica, CA, substantial damage. Probable cause: 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… - [NTSB ERA23LA009](https://openairdocs.org/ntsb/ERA23LA009), Oct 6, 2022: Swensen Fisher Celebrity (N655WP), Greensboro, NC, substantial damage. Probable cause: The pilot/mechanic’s failure to remove excess sealant from the header fuel tank after recent maintenance, which resulted in fuel starvation to the engine and a loss of engine power. Contributing to… - [NTSB ERA23LA002](https://openairdocs.org/ntsb/ERA23LA002), Oct 2, 2022: Aeronca 7AC (N3005E), Murray, KY, substantial damage. Probable cause: 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… 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.