For how long must certificate holders keep copies of completed load manifests?

The correct answer indicates that certificate holders are required to keep copies of completed load manifests for 30 days at the principal operations base. This requirement is set forth by regulatory authorities to ensure proper record-keeping and accountability in aviation operations. Load manifests are critical documents that provide detailed information about the cargo and passengers on board an aircraft. Retaining these records for a specific period is essential to support safety, security, and operational integrity.

Keeping the load manifests for 30 days at the principal operations base allows the airline or operator to readily access these documents for various purposes, such as audits, investigations, or inquiries about the flight. This practice helps maintain an organized system that can be referred back to if needed, ensuring compliance with regulations and operational standards.

Other options suggest variations in the duration or location for keeping the manifests that do not align with regulatory requirements. For example, maintaining them for only 30 days at the flight's destination, for one month at a temporary location, or for an extended period at headquarters does not adhere to the specific rules concerning the principal operations base. Each of these options fails to recognize the importance of having operational records easily accessible at the main site where the airline or operation is based, which is vital for effective management and oversight.