https://assets.publishing.service.gov.uk/media/5b742327ed915d0b615a3ec2/Morane_Saulnier_MS.315E_D2_G-BZNK_09-18.pdf

Report out. The engine was not to blame. Aircraft unexpectedly ran out of fuel due to extreme fuel consumption after a mechanical failure in the engine primer system. Worth a good read, particularly the pilot’s explanation why he was able to put it down the way he did. Planning ahead, preparing for such an event, and practice.