Where must an air carrier maintain a complete copy of the Section 121.133 manual(s)?

Where must an air carrier maintain a complete copy of the Section 121.133 manual(s)?

• A. At the carrier's principal base of operations
• B. At each maintenance facility
• C. On every aircraft operated by the carrier
• D. In the operations control center

Answer: (A)

An air carrier is required to maintain a complete copy of the Section 121.133 manual(s) at the carrier's principal base of operations to ensure compliance with the regulations outlined in the Federal Aviation Administration (FAA) guidelines. This location serves as the central hub for the carrier's operations, where all relevant documentation can be accessed readily by personnel involved in compliance, safety, and operational procedures.

Having the manuals at the principal place allows for efficient management and oversight of policies and practices outlined in these critical documents. It also ensures that all employees can reference the manuals whenever necessary, facilitating thorough training and adherence to established operational standards.

While other locations like maintenance facilities, onboard aircraft, or in operations centers may have copies for specific operational needs, maintaining a complete set at the main base is essential for oversight and regulatory compliance. This principal base serves both as a physical repository and a symbolic center of the carrier's operational integrity.