# Scheduled maint checks - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft handling/service](https://openairdocs.org/ntsb-findings/0101) › [Maintenance/inspections](https://openairdocs.org/ntsb-findings/010105) › Scheduled maint checks - NTSB code: 01010520 - Cases: 76 - In the probable cause: 56 - Fatal cases: 14 - All cases: https://openairdocs.org/ntsb-findings/01010520/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01010520/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01010520 ## Cases per year (in the probable cause / all) - 2008: 3 / 4 - 2009: 5 / 6 - 2010: 3 / 5 - 2011: 4 / 6 - 2012: 6 / 8 - 2013: 5 / 8 - 2014: 8 / 9 - 2015: 4 / 4 - 2016: 4 / 7 - 2017: 5 / 6 - 2018: 3 / 4 - 2020: 1 / 3 - 2021: 2 / 2 - 2022: 3 / 3 - 2023: 0 / 1 ## Defining events in these cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 13 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 11 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 11 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 8 cases - [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 7 cases - [Landing gear collapse](https://openairdocs.org/ntsb-events/094): 7 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 3 cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 2 cases - [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 2 cases - [Fuel contamination](https://openairdocs.org/ntsb-events/193): 2 cases ## Aircraft models (registry) - [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 4 cases - [Piper PA-28RT-201](https://openairdocs.org/model/piper-pa-28rt-201): 2 cases - [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181): 2 cases - [Costruzioni Aeronautiche Tecna P2002 SIERRA](https://openairdocs.org/model/costruzioni-aeronautiche-tecna-p2002-sierra): 2 cases - [Eurocopter AS 350 B2](https://openairdocs.org/model/eurocopter-as-350-b2): 1 cases - [Barney Robert J STARDUSTER SA-100](https://openairdocs.org/model/barney-robert-j-starduster-sa-100): 1 cases - [Luscombe 8A](https://openairdocs.org/model/luscombe-8a): 1 cases - [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 1 cases - [Piper PA-46-310P](https://openairdocs.org/model/piper-pa-46-310p): 1 cases - [Piper PA-38-112](https://openairdocs.org/model/piper-pa-38-112): 1 cases ## Other findings in the same cases - [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 21 cases - [Scheduled/routine inspection](https://openairdocs.org/ntsb-findings/02061520) (Personnel issues): 14 cases - [Fuel](https://openairdocs.org/ntsb-findings/01071010) (Aircraft): 10 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 9 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 6 cases - [Qualification/certification](https://openairdocs.org/ntsb-findings/02031010) (Personnel issues): 5 cases - [Recip eng cyl section](https://openairdocs.org/ntsb-findings/01058530) (Aircraft): 5 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 4 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 4 cases - [Preflight inspection](https://openairdocs.org/ntsb-findings/02061510) (Personnel issues): 4 cases ## Newest cases - [NTSB CEN23LA255](https://openairdocs.org/ntsb/CEN23LA255), Jun 22, 2023: Piper PA-25-235 (N7419Z), Westhope, ND, substantial damage. Probable cause: The pilot’s failure to maintain aircraft control that resulted in an impact with terrain after takeoff. - [NTSB CEN23LA062](https://openairdocs.org/ntsb/CEN23LA062), Dec 13, 2022: Mooney M20K (N231GZ), Addison, TX, substantial damage. Probable cause: The fatigue failure of the engine’s camshaft gear teeth which resulted in a loss of all engine power. Contributing to the accident was the non-compliance with the engine manufacturer’s recommended… - [NTSB ERA22LA410](https://openairdocs.org/ntsb/ERA22LA410), Sep 9, 2022: Cessna U206 (N8019Z), Buckland, AK, substantial damage. Probable cause: The installation of incompatible rocker arms and rocker arm bushings during an engine overhaul, which resulted in a complete loss of engine power. - [NTSB ERA22LA194](https://openairdocs.org/ntsb/ERA22LA194), Apr 18, 2022: Piper PA-28-140B (N8891N), Panama City, FL, substantial damage. Probable cause: A total loss of engine power due to fuel contamination. Contributing to the accident was the inadequate maintenance and inspection of the airplane and engine by maintenance personnel, and the pilot’s… - [NTSB DCA21FA085](https://openairdocs.org/ntsb/DCA21FA085), Feb 20, 2021: Boeing 777-222 (N772UA), Broomfield, CO, incident, minor damage. Probable cause: The fatigue failure of the right engine fan blade. Contributing to the fan blade failure was the inadequate inspection of the blades, which failed to identify low-level indications of cracking, and… - [NTSB ERA21LA106](https://openairdocs.org/ntsb/ERA21LA106), Jan 19, 2021: American AA5 (N5880L), Leesburg, VA, substantial damage. Probable cause: The weakened structure of the left horizontal stabilizer, which resulted in elevator flutter and subsequent partial separation of the left elevator in flight. Contributing to the accident were the… - [NTSB CEN21LA030](https://openairdocs.org/ntsb/CEN21LA030), Oct 26, 2020: Cessna 210 (N9622T), Lubbock, TX, destroyed, 1 fatal. Probable cause: The pilot’s improper decision to fly into icing conditions with an airplane that was not equipped for icing, which led to structural icing and a subsequent loss of airplane control, and the pilot’s… - [NTSB CEN20LA322](https://openairdocs.org/ntsb/CEN20LA322), Aug 2, 2020: Quad City Challenger (N990SS), Jonesboro, LA, substantial damage. Probable cause: Loss of engine power due to the use of improper fuel in the airplane by the non-certificated pilot. - [NTSB ERA20LA271](https://openairdocs.org/ntsb/ERA20LA271), Aug 1, 2020: American AA 5 (N7192L), Dunnellon, FL, substantial damage, 1 fatal. Probable cause: A total loss of engine power due to fuel starvation as a result of improper installation and inspection of the airplane’s fuel system. Contributing to the accident was the pilot’s lack of… - [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 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.