A Flushed PNR is a term used by the Indian Railways to refer to a Passenger Name Record (PNR) that has been deleted from the online system after a specific period of time. The PNR number stays online for 5 days after the date of the journey, and after that, it gets deleted but is still stored in the database. We cannot check the status of flushed PNRs. When trying to check the status of an old travel ticket PNR, one may encounter a "Flushed PNR or PNR not yet generated" error, which means that the PNR has been deleted from the online system. There is no solution to this error, as the PNR has been deleted and cannot be retrieved.