Hi Chopperaguilera
Your simplest option is to refer to the R44 Maintenance Manual Section 2 and Lycoming Operators Manual Section 4 which have a full manufacturers maintenance programme detailed.
What we do at our maintenace facility is copy these pages and use them as a check sheet with addition worksheets detailing AD's, SB's and any other regional authority requirements.
If your regional authority require you to produce an Approved Maintenance Programme then all a lot of companies do is copy word for word the contents of these inspections onto a headed document.
I hope this helps