# Maintenance records - Type: NTSB finding subsection - Path: [Organizational issues](https://openairdocs.org/ntsb-findings/04) › [Support/oversight/monitoring](https://openairdocs.org/ntsb-findings/0403) › [Documentation/record keeping](https://openairdocs.org/ntsb-findings/040330) › Maintenance records - NTSB code: 04033025 - Cases: 16 - In the probable cause: 9 - Fatal cases: 4 - All cases: https://openairdocs.org/ntsb-findings/04033025/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/04033025/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/04033025 ## Cases per year (in the probable cause / all) - 2008: 0 / 2 - 2010: 1 / 1 - 2012: 4 / 5 - 2013: 1 / 1 - 2015: 1 / 3 - 2018: 2 / 2 - 2022: 0 / 1 - 2023: 0 / 1 ## Defining events in these cases - [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 2 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 2 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 2 cases - [Ground resonance](https://openairdocs.org/ntsb-events/232): 2 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 1 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 1 cases - [Electrical system malf/failure](https://openairdocs.org/ntsb-events/332): 1 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 1 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 1 cases - [Fuel exhaustion](https://openairdocs.org/ntsb-events/192): 1 cases ## Aircraft models (registry) - [Texas Helicopter OH-13E/M74](https://openairdocs.org/model/texas-helicopter-oh-13e-m74): 1 cases - [Socata TB-20 TRINIDAD](https://openairdocs.org/model/socata-tb-20-trinidad): 1 cases - [Schweizer 269C-1](https://openairdocs.org/model/schweizer-269c-1): 1 cases - [Schweizer 269C](https://openairdocs.org/model/schweizer-269c): 1 cases - [Ryan Aeronautical ST3KR](https://openairdocs.org/model/ryan-aeronautical-st3kr): 1 cases - [Piper PA-18-135](https://openairdocs.org/model/piper-pa-18-135): 1 cases - [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3): 1 cases - [Dassault-Breguet FALCON 50](https://openairdocs.org/model/dassault-breguet-falcon-50): 1 cases - [Cirrus Design SR22T](https://openairdocs.org/model/cirrus-design-sr22t): 1 cases - [Cessna 172K](https://openairdocs.org/model/cessna-172k): 1 cases ## Other findings in the same cases - [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 5 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 2 cases - [Oversight of personnel](https://openairdocs.org/ntsb-findings/04032010) (Organizational issues): 2 cases - [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 2 cases - [Oversight of maintenance](https://openairdocs.org/ntsb-findings/04032020) (Organizational issues): 1 cases - [Between groups/organizations](https://openairdocs.org/ntsb-findings/04025020) (Organizational issues): 1 cases - [Within group(s)/organization](https://openairdocs.org/ntsb-findings/04025015) (Organizational issues): 1 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational issues): 1 cases - [Availability of policy/proc](https://openairdocs.org/ntsb-findings/04021010) (Organizational issues): 1 cases - [Document/info production](https://openairdocs.org/ntsb-findings/04013020) (Organizational issues): 1 cases ## Newest cases - [NTSB WPR23LA107](https://openairdocs.org/ntsb/WPR23LA107), Feb 7, 2023: Bell OH-58A (N36FA), Yuma, AZ, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined. - [NTSB DCA22MA193](https://openairdocs.org/ntsb/DCA22MA193), Sep 4, 2022: Dehavilland DHC-3 (N725TH), Freeland, WA, destroyed, 10 fatal. Probable cause: 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… - [NTSB ERA18FA264](https://openairdocs.org/ntsb/ERA18FA264), Sep 27, 2018: Dassault Falcon 50 (N114TD), Greenville, SC, substantial damage, 2 fatal. Probable cause: 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… - [NTSB ANC18LA018](https://openairdocs.org/ntsb/ANC18LA018), Jan 1, 2018: Costruzioni Aeronautiche Tecna P2006 (N594MA), Lynchburg, VA, substantial damage. Probable cause: 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… - [NTSB CEN15LA345](https://openairdocs.org/ntsb/CEN15LA345), Aug 5, 2015: Air Tractor AT 401 (N1539U), Nekoosa, WI, substantial damage. Probable cause: 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… - [NTSB WPR15FA121](https://openairdocs.org/ntsb/WPR15FA121), Mar 5, 2015: Ryan Aeronautical ST3KR (N53178), Santa Monica, CA, substantial damage. Probable cause: 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… - [NTSB CEN15LA156](https://openairdocs.org/ntsb/CEN15LA156), Feb 20, 2015: Agusta Aerospace AW119 Mkii (N802SM), Gulf of Mexico, substantial damage. Probable cause: 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… - [NTSB ERA13LA188](https://openairdocs.org/ntsb/ERA13LA188), Apr 1, 2013: Cessna 402C (VQ-TIN), Fort Lauderdale, FL, substantial damage. Probable cause: 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,… - [NTSB CEN12LA525](https://openairdocs.org/ntsb/CEN12LA525), Aug 7, 2012: Bell 214ST (N409SB), Avalon, TX, substantial damage. Probable cause: 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… - [NTSB CEN12LA343](https://openairdocs.org/ntsb/CEN12LA343), Jun 2, 2012: Schweizer 269C (N2196F), Denver, CO, substantial damage. Probable cause: 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… 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.