A maintenance entry must be made in the journey log; This entry, which constitutes the owner's declaration of conformity, must detail the equipment essential to IFR flight, as provided for in sections 605.18 and 605.35 of the CARs, and specify that the equipment has been installed, tested and calibrated correctly, in accordance with the requirements. subparts 571 and 605 of the CARs and any other related standards, and that it is functioning properly. The owner should expect to have proof that the assembly, testing and calibration of IFR equipment has been carried out properly. The list of equipment must also be detailed in the weight and balance report of the device, see details below.