1. Date of Maintenance: Exact date and time when the maintenance activity was performed.

2. Type of Maintenance: Classification of the maintenance performed, such as routine check, scheduled service, unscheduled repair, overhaul, etc.

3. Description of Maintenance Work: Detailed description of the maintenance work carried out, including any specific tasks or procedures performed.

4. Parts Replaced or Repaired: A list of parts that were replaced or repaired during the maintenance, including part numbers and specifications.

5. Hours Logged: The number of hours logged on the aircraft since the last maintenance, or total aircraft hours at the time of maintenance.

6. Technician Details: Information about the technicians who performed the maintenance, including names, qualifications, and certifications.

7. Service Bulletins and AD Compliance: Details on any service bulletins or Airworthiness Directives (ADs) complied with during the maintenance.

8. Cost of Maintenance: Total cost of the maintenance, including labor, parts, and any additional expenses.

9. Maintenance Location: Location where the maintenance was carried out, including facility name and address.

10. Operational Tests Performed: Details of any operational tests conducted post-maintenance to ensure functionality and safety.

11. Discrepancies Noted and Actions Taken: Any discrepancies noted during the maintenance and the subsequent actions taken to address them.

12. Next Scheduled Maintenance: Information on the next scheduled maintenance or inspection, based on hours flown, calendar time, or other criteria.

13. Comments and Observations: Any additional comments or observations made by the maintenance personnel, which could be relevant for future maintenance activities.

14. Certification of Release to Service: A statement or certification indicating that the aircraft is released back to service after maintenance, in compliance with relevant aviation regulations.

15. Digital Attachments: Any relevant digital attachments like photographs, scanned documents, or digital logs that accompany the maintenance record.