I believe DJI must include maintenance schedules, procedures, and checklists for preventative, routine, and periodic, maintenance, in the User Manual. Not only should the schedules be published, but so should procedures and checklists be published as well. It seems that since DJI does not include these maintenance requirements, they can not hold the user accountable for not performing the maintenance. I plan on notifying the FAA UAS Integration Office if I don't see something happen with respect to this issue in the next 10 days.