What types of audits are conducted to ensure SOP compliance at United Airlines?

Audits are essential for maintaining compliance with Standard Operating Procedures (SOP) at United Airlines, and the correct choice includes a comprehensive approach. Internal audits help assess the processes and compliance within the organization, ensuring that all departments adhere to the established SOPs. They facilitate identifying areas of improvement and ensuring that employees are following the required procedures.

External audits bring in an outside perspective and validate the effectiveness of the processes against industry standards and regulations. These audits can reveal potential blind spots and provide insights that internal teams may overlook.

Operational reviews add another layer by examining the day-to-day operations to ensure that they align with the established policies and procedures. This can involve evaluating workflow, processes, efficiency, and adherence to quality standards in real-time operations.

Together, internal audits, external audits, and operational reviews form a multi-faceted approach that enhances accountability, ensures compliance with SOPs, and promotes continuous improvement throughout the organization. The other options mentioned, such as quarterly employee reviews and customer feedback surveys, play essential roles in performance evaluation and service quality but do not specifically address the auditing process used to ensure SOP compliance.