What are the most common types of aircraft maintenance checks?

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If you own or operate an aircraft, you know how important it is to keep it in good condition. Regular maintenance checks are essential to ensure safety, performance, and compliance with aviation standards. But what are the most common types of aircraft maintenance checks, and how often do they need to be performed? In this article, we will explain the four main categories of maintenance checks, based on the frequency and complexity of the tasks involved. We will also give you some tips on how to plan and prepare for your maintenance checks, and what to expect from your maintenance provider.

本文章的要点总结

Scheduled inspections:

Regular maintenance checks are a must for aircraft safety. A, B, C, and D checks at varying intervals cover everything from basic operations to full overhauls, ensuring your craft meets aviation standards.
Pre-flight checks:

Before every flight, thorough inspections should be performed. This proactive approach catches potential issues early, keeping safety the top priority and minimizing unexpected downtime.

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1 A Checks

A checks are the most frequent and basic type of maintenance check for an aircraft. They are usually performed every 50 to 100 flight hours, or every month, depending on the aircraft type and usage. A checks typically involve inspecting and servicing the vital systems and components of the aircraft, such as the engines, landing gear, brakes, tires, fluids, filters, and instruments. A checks can be done in a few hours, and often do not require the aircraft to be taken out of service.

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Sidney Manzela

Administrativo de Obras | Especialista em Energia Renovável e Infraestrutura | UFV, Linhas de Transmiss?o e Subesta??es
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Cheque A: este tipo de manuten??o é realizado com periodicidade que varia de 300 a 800 horas de voo, dependendo do manual do fabricante. Exigem um intervalo de seis a oito horas em solo. Aqui, as tarefas típicas s?o recomposi??o de graxa em trens de pouso, flaps e superfícies de comando, entre outras.

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Elton Viera Leite

Mentor, Palestrante, Conselheiro empresarial em SMSQ. Candidato a Vereador em Campos dos Goytacazes-RJ.
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Os fatores primordiais em um cheque de manuten??o de aeronave para prevenir acidentes incluem a minuciosa inspe??o e manuten??o dos motores, sistemas de trem de pouso, freios, pneus, fluidos, filtros e instrumentos. Identificar e corrigir potenciais falhas nessas áreas é crucial para garantir a seguran?a operacional da aeronave. Além disso, seguir as diretrizes de manuten??o recomendadas pelo fabricante e cumprir os intervalos regulares de verifica??o s?o práticas essenciais para evitar falhas críticas que possam levar a acidentes. Eu operei Heliponto em navios e plataformas de petróleo e certa vez tive que alertar o piloto em virtude do trem de pouso apresentar falhas com uma parte retraída e outra baixada e travada com risco de acidente.

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Esdras Candido

Sócio Solu??es Medicina e Seguran?a do Trabalho|EHS|SSMA|Previdenciário|NR's
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A manuten??o de aeronaves é importante para manter ou melhorar a sua aeronavegabilidade e confiabilidade. Ou seja: garantir que o funcionamento do avi?o está perfeito, seguro e confortável para pilotos e passageiros. Engana-se, porém, quem acredita que é fácil realizar essa atividade. Na verdade, existe uma série de itens que devem ser levados em considera??o. Sendo necessário, portanto, contar com equipes especializadas, bem como processos claros e definidos.

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Andreas Hoeffener

DG, TopAircraft
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Standard checks yes , and after a C-check the airplane doesn't fly / or work correctly until a hundred hours have been flown. ( of course not always ) Standard check: Flight crew walk around prior to flight . It is important to notice a wooden cargo pallet that some how got lodged up in the R/H main gear area . Just because it is cold , newly minted F/O , does not mean you can do a 'run around ' How the hell did a pallet get up there ? Ans. It did ! Welcome to aviation.

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2 B Checks

B checks are less frequent than A checks, but more thorough. They are usually performed every 150 to 300 flight hours, or every 3 to 6 months, depending on the aircraft type and usage. B checks involve a more detailed inspection and testing of the aircraft systems and components, as well as some minor repairs and adjustments. B checks can take up to a day, and may require the aircraft to be taken out of service for a short period.

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Sidney Manzela

Administrativo de Obras | Especialista em Energia Renovável e Infraestrutura | UFV, Linhas de Transmiss?o e Subesta??es
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Pesquisando na internet encontrei outras informa??es que podem ser úteis: Cheque B: em aeronaves mais antigas, há uma deriva??o mais pesada do cheque A, chamada cheque B. Esta inspe??o era comum nos Boeing mais antigos (727 e 737-200, por exemplo), sendo pouco utilizada nas frotas atuais. As tarefas correspondentes nas aeronaves mais modernas est?o inseridas hoje no cheque A.

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3 C Checks

C checks are the most comprehensive and complex type of maintenance check for an aircraft. They are usually performed every 18 to 24 months, or after a certain number of flight cycles, depending on the aircraft type and usage. C checks involve a complete overhaul of the aircraft, including dismantling, inspecting, repairing, replacing, and testing all the systems and components, as well as checking for corrosion, fatigue, and structural damage. C checks can take several days or weeks, and require the aircraft to be taken out of service for a long period.

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Sidney Manzela

Administrativo de Obras | Especialista em Energia Renovável e Infraestrutura | UFV, Linhas de Transmiss?o e Subesta??es
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Outras informa??es complementares: Cheque C: antigamente era classificada como uma inspe??o anual, mas hoje em dia em algumas aeronaves pode ser executada até a cada dois anos ou mais. Engloba desmontagens, modifica??es, pinturas e também tarefas controladas por horas de voo e ciclos, com a periodicidade dependendo da utiliza??o que cada empresa aérea faz de sua frota de aeronaves. Leva em torno de cinco a 14 dias, podendo se estender por um mês, dependendo da idade e da utiliza??o do avi?o em quest?o.

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4 D Checks

D checks are the most rare and extensive type of maintenance check for an aircraft. They are usually performed every 6 to 10 years, or after a certain number of flight hours, depending on the aircraft type and usage. D checks involve a complete restoration of the aircraft, including stripping, painting, refurbishing, and modifying the interior and exterior, as well as performing all the tasks of a C check. D checks can take several weeks or months, and require the aircraft to be taken out of service for a very long period.

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Sidney Manzela

Administrativo de Obras | Especialista em Energia Renovável e Infraestrutura | UFV, Linhas de Transmiss?o e Subesta??es
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Também encontrei um complemento: Cheque D: a mais complexa das manuten??es chega a necessitar de 28 a 40 dias de tempo de solo, quando se desmonta a aeronave para uma recupera??o completa de estruturas, interiores, pintura, entre outros itens. Tem periodicidade entre quatro e seis anos.

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5 Maintenance Planning

Maintenance planning is the process of scheduling and managing your maintenance checks, based on your aircraft type, usage, and regulatory requirements. Maintenance planning helps you optimize your operational efficiency, reduce your downtime, and prevent unexpected failures and delays. Maintenance planning involves keeping track of your aircraft records, logs, and manuals, as well as coordinating with your maintenance provider, crew, and customers.

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Sidney Manzela

Administrativo de Obras | Especialista em Energia Renovável e Infraestrutura | UFV, Linhas de Transmiss?o e Subesta??es
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Segue mais outras informa??es complementares: Manuten??o n?o programada: mesmo com planos de manuten??o cada vez mais sofisticados com o passar dos anos, fatos imprevisíveis também fazem parte do universo da avia??o. Colis?o com pássaros e bal?es, pane em algum sistema e até mesmo um artefato que cause avaria num pneu podem levar a aeronave para a manuten??o, por horas ou até dias, afetando a escala programada para aquele avi?o. “Isso pode causar atrasos em voos e deixar o passageiro estressado. Mas seguran?a é primordial na avia??o”, afirma Amparo.

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Ahmad M. Mandili

Director of MRO Operations Systems | Vision 2030 | Executive Management | Operations Technology | Digital Transformation | AMOS SME | Prosci? Certified Change Practitioner
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Maintenance planning for aircraft involves various checks, with the most common being Line Maintenance, A Checks, B Checks, C Checks, and D Checks. Line Maintenance involves routine, minor tasks performed regularly. A Checks, done every 200-600 flight hours, focus on basic inspections and minor repairs. B Checks, every few months, address more comprehensive systems and components. C Checks, every 18-24 months, involve detailed inspections and significant maintenance. Lastly, D Checks, occurring every 5-12 years, are the most extensive, involving disassembly and thorough examination of the aircraft's structure. Effective planning ensures adherence to these checks, ensuring safety, reliability, and compliance with aviation regulations.

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6 Maintenance Provider

Maintenance provider is the organization or individual that performs your maintenance checks, either in-house or outsourced. Maintenance provider must be qualified, certified, and authorized to perform the maintenance tasks for your aircraft type and category, according to the aviation standards and regulations. Maintenance provider must also have the necessary facilities, equipment, tools, and personnel to perform the maintenance tasks efficiently and safely. Maintenance provider must also communicate with you and provide you with the documentation and reports of your maintenance checks.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Elton Viera Leite

Mentor, Palestrante, Conselheiro empresarial em SMSQ. Candidato a Vereador em Campos dos Goytacazes-RJ.
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Além das qualifica??es e instala??es mencionadas, é crucial enfatizar a importancia da conformidade contínua com as atualiza??es regulatórias da avia??o para garantir que o provedor de manuten??o esteja sempre alinhado com as normas mais recentes. Além disso, destacar a transparência na comunica??o sobre qualquer altera??o nos procedimentos ou nos cronogramas de manuten??o contribuirá para um relacionamento mais eficaz e seguro.

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What are the most common types of aircraft maintenance checks?

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1 A Checks

2 B Checks

3 C Checks

4 D Checks

5 Maintenance Planning

6 Maintenance Provider

7 Here’s what else to consider

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