An operator must ensure that the following records are kept for the prescribed periods-
- the total time in service (hours, calendar time and cycles, as appropriate) of the helicopter and all life limited components;
- the current status of compliance with all mandatory continuing airworthiness information;
- appropriate details of modifications and repairs;
- the time in service (hours, calendar time and cycles, as appropriate) since the last overhaul of the helicopter or its components subject to a mandatory overhaul life;
- the current status of the helicopter’s compliance with the maintenance programme; and
- the detailed maintenance records to show that all requirements for the signing of a maintenance release have been met.