When Chivenor re-opened as a TWU in 1980, the only 'Officer's Mess' was a combined Officers / Sgt's Mess although a new SNCOs' Mess and a new Officers' Mess were planned. I don't know when they opened as I left in March 1981 and they weren't open then:
With acknowledgements to Google Earth
The accuracy of my pushpins isn't guaranteed as I only have an old 1980 sketch map from my Joining Instructions for No.1 Course and it's difficult to match it exactly with the lorry park which now exists at the RAF's best-ever aerodrome.
Which Mess is the ghost believed to haunt?