In which book would you expect to find a CMR, a maintenance statement, a sector record, and a deferred defect?

The correct choice is the aircraft logbook because it serves as a comprehensive record of important information and operational history regarding an aircraft. A CMR, or Component Maintenance Record, is crucial for tracking the maintenance of specific components of the aircraft, ensuring compliance with safety and regulatory standards. A maintenance statement provides documentation regarding the maintenance status of the aircraft, including any performed inspections and necessary repairs, which are integral for maintaining airworthiness.

A sector record is a log of specific flight operations or segments, detailing the flights the aircraft has undergone, which can include information such as flight hours and maintenance actions performed after each flight. Additionally, a deferred defect, which refers to an identified issue that has not yet been resolved but has been documented for future resolution, is an essential part of the operational and safety record required in aviation contexts.

In contrast, the supplemental certificate and the updated flight manual do not typically contain all these maintenance-related entries. A technical logbook is focused primarily on recording technical details about specific flights but may not encapsulate the range of information that the aircraft logbook does, especially regarding ongoing maintenance and modifications.