What is a "Letter of Authorization" as per FARs?

A "Letter of Authorization" (LOA) is a document issued by the Federal Aviation Administration (FAA) that allows for specific operations under defined conditions. This document serves as a formal endorsement from the FAA, permitting an individual or entity to conduct specific types of operations, which may include the use of advanced equipment or procedures that require FAA approval.

LOAs generally outline particular operational parameters, training requirements, and the responsibilities of the parties involved. They are important for ensuring that operations meet safety standards and regulatory compliance.

In contrast, the other options do not accurately reflect the definition of a Letter of Authorization. For instance, granting custody of an aircraft, requesting flight clearance, or issuing a temporary pilot license are distinct processes that do not fall under the definition or purpose of an LOA as set forth by the FAA. Understanding the specific role of an LOA within the framework of aviation regulations is crucial for both operators and regulatory compliance.