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What is OPS/CHK in Aviation? (Operational Check)

Updated: March 07, 2024

Operational Check: Ensuring Safety and Efficiency in Aviation

Aviation is a complex and highly regulated industry that demands absolute precision and adherence to protocols. One crucial aspect of aviation operations is the operational check, abbreviated as OPS/CHK. This process plays a vital role in ensuring the safety and efficiency of aircraft, thereby minimizing risks and potential hazards. In this article, we will delve into the significance of operational checks, their various components, and their role in maintaining aviation standards.

Why Operational Checks are Essential

Operational checks are integral to aviation operations as they verify the proper functioning of aircraft systems and equipment. These comprehensive inspections are conducted before, during, and after flights to ensure that all systems are in optimal condition and capable of performing their intended functions. By thoroughly examining critical components and systems, operational checks help identify any potential issues or malfunctions that could compromise the safety or efficiency of the aircraft.

One of the primary objectives of operational checks is to prevent any unforeseen issues during flight. These checks are designed to detect any anomalies, malfunctions, or failures that may impact the aircraft's performance or compromise the safety of the crew and passengers. By identifying and rectifying these issues before takeoff, operational checks help minimize the risk of in-flight emergencies and ensure a smooth and trouble-free journey.

The Components of an Operational Check

An operational check encompasses a wide range of inspections, tests, and verifications. Each component of the aircraft is carefully examined to ensure its proper functioning. Let's explore some of the key components that are typically assessed during an operational check:

Flight Controls: The aircraft's flight controls, including ailerons, elevators, and rudders, are inspected to ensure they respond correctly to pilot inputs and are free from any restrictions or abnormalities. The control surfaces' movement range, rigidity, and connection integrity are thoroughly examined to guarantee their smooth operation.
Engine and Propeller: The engine is the heart of an aircraft, and operational checks assess its performance, responsiveness, and overall health. Parameters such as engine power, fuel consumption, oil pressure, and temperature are closely monitored. Additionally, the propeller's condition, pitch adjustment, and balance are scrutinized to ensure optimal propulsion efficiency.
Electrical Systems: The aircraft's electrical systems, including power generation, distribution, and utilization, are subjected to thorough inspections. Operational checks involve verifying the functionality of critical systems such as lighting, communication equipment, navigation aids, and instrumentation. Any deviations or abnormalities are meticulously addressed before the aircraft takes off.
Avionics: The avionics suite, which encompasses electronic systems for communication, navigation, and surveillance, is an essential part of modern aircraft. Operational checks involve testing the functionality of radios, transponders, GPS systems, and autopilot features to ensure their accuracy and reliability. Proper functioning of avionics systems is crucial for maintaining safe and efficient flight operations.
Landing Gear and Brakes: The landing gear and brakes are critical for safe takeoff and landing. During an operational check, the landing gear's extension and retraction mechanisms, shock absorption capabilities, and tire condition are examined. Brake functionality, including effectiveness and response time, is also assessed to guarantee reliable stopping power.

These are just a few examples of the components that are evaluated during an operational check. The specific checks performed may vary depending on the aircraft type, manufacturer guidelines, and regulatory requirements. It is essential for aviation operators and technicians to adhere to the specific operational check procedures outlined by the aircraft manufacturer and approved by the aviation regulatory authorities.

The Importance of Regular Operational Checks

Regular and consistent operational checks are critical for maintaining the highest standards of safety and efficiency in aviation. These checks are typically conducted at specified intervals, such as pre-flight, post-flight, and periodic inspections. Let's explore why regular operational checks are of utmost importance:

Ensuring Safety

Safety is paramount in aviation, and operational checks play a crucial role in upholding safety standards. By thoroughly inspecting and testing various aircraft systems and components, operational checks help identify potential hazards or malfunctions that could jeopardize the safety of the aircraft, crew, and passengers. Regular operational checks minimize the risk of in-flight emergencies, ensuring a safe and secure flying experience.

According to the Federal Aviation Administration (FAA), operational checks are a vital part of the overall maintenance program for aircraft. Adhering to these checks helps operators identify and address potential safety concerns before they escalate into more significant issues. By proactively addressing maintenance and safety issues, operational checks contribute to a culture of continuous improvement and risk mitigation in aviation.

Optimizing Efficiency

In addition to safety, operational checks also contribute to the overall efficiency of aviation operations. By thoroughly inspecting and verifying the aircraft's various systems and components, operational checks ensure that everything is in proper working order. Identifying and rectifying any inefficiencies or malfunctions allows for optimal performance, fuel efficiency, and operational cost savings.

Efficient aircraft operations translate into reduced fuel consumption, lower maintenance costs, and improved overall performance. Regular operational checks help aviation operators maintain their fleet's reliability and ensure that their aircraft are operating at peak efficiency levels.

Compliance with Regulatory Requirements

Operational checks are not only essential for safety and efficiency but are also a regulatory requirement in aviation. Regulatory bodies, such as the FAA in the United States and the European Union Aviation Safety Agency (EASA) in Europe, mandate that aircraft operators adhere to specific maintenance and inspection programs, which include operational checks.

Complying with these regulatory requirements is crucial for maintaining an air operator's certificate (AOC) or an airworthiness certificate. Failure to conduct regular operational checks can result in penalties, grounding of aircraft, or suspension of operating licenses. By conducting thorough operational checks, aviation operators demonstrate their commitment to adhering to industry regulations and ensuring the highest standards of safety and operational integrity.


Operational checks, abbreviated as OPS/CHK, are an integral part of aviation operations. They provide a comprehensive assessment of aircraft systems and components, ensuring their proper functioning and identifying any potential issues. By conducting regular operational checks, aviation operators prioritize safety, optimize efficiency, and comply with regulatory requirements.

Aviation is an industry that demands meticulous attention to detail and adherence to protocols. Operational checks are a vital component of this industry, ensuring that aircraft systems and components are in optimal condition and capable of performing their intended functions. By conducting thorough inspections and verifications, operational checks contribute to the safety and efficiency of aviation operations, providing a reliable and secure flying experience for all.

For more information on aviation maintenance and safety practices, visit FAA.gov.

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