What are the general requirements for maintaining powerplant inspection records?

Maintaining accurate powerplant inspection records is crucial for the safety, reliability, and regulatory compliance of aircraft operations. The correct choice emphasizes that these records must be dated, signed, and include detailed descriptions of the work performed. This level of detail ensures a comprehensive history of maintenance that can be reviewed and audited, allowing for better tracking of the condition and performance of the aircraft's powerplant over time.

Dated records provide a timeline of maintenance activities, which is essential for assessing adherence to scheduled inspections and understanding any trends in reliability or performance. Including a signature not only adds accountability but also verifies that a qualified technician has completed the work, thereby upholding the standards of safety and professionalism within the aviation industry. Additionally, detailing the specific work performed helps in establishing a clear maintenance history, which can be invaluable for future inspections, troubleshooting, and compliance audits.

While other options indicate various aspects of record maintenance, they do not encompass the full picture necessary for robust record-keeping practices mandated by aviation regulatory authorities. For instance, keeping records for a minimum of one year may not fulfill the longer retention requirements often needed for maintenance records, and major repairs must be documented along with all other tasks, not just those that are significant.