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What does CDL stand for in aviation?

  1. Controlled Descent Landing

  2. Configuration Deviation List

  3. Critical Design Load

  4. Composite Deployment List

The correct answer is: Configuration Deviation List

In aviation, CDL stands for "Configuration Deviation List." This document is essential for flight operations because it specifies the allowable configurations of an aircraft when certain inoperative equipment or systems are present. The CDL provides pilots and dispatchers with specific instructions on how to operate the aircraft safely while adhering to these deviations. For instance, if a component of the aircraft is inoperative, the CDL may outline permissible modifications or restrictions that can be implemented, ensuring that the aircraft remains airworthy and that operational safety is maintained. It usually accompanies the aircraft's flight manual and is an important factor in the planning and decision-making process for flight operations. Understanding the role of the Configuration Deviation List is crucial for those working in flight operations, as it directly impacts safety, performance, and compliance with regulatory standards.