Hi Geolift. Assuming the LPC is conducted by a UK TRE on a UK EASA licence holder it’s done following CAA DOC 24 guidance, that contains a detailed testing schedule, items marked M are mandatory. However this assumes a ‘basic’ LPC. If you work for an operator they may impose other requirements for their OPC (normally combined with an LPC), and if they are part of an ATQP or EBT training system then there may be further and different requirements. So sadly not a straight forward answer!
If you have a more specific question, feel free to post it and I’ll try to answer. (UK TRE)