MEP Licence Proficiency Check/IRR Renewal

[JUMBO400]

I recently Conducted an IR renewal for a wannabee who flies a C172 on aerial work. He told me that he had revalidated his MEP with a UK FE(PPL Group B examiner in old money) at his local flying school as he had been informed that the LPC and the IR could not be conducted on the same flight. Rubishh!!the MEP LPC incorporates the IRR(if required or necessary) but can be conducted on two separate flights.