NOUS61 KPHI 261535 FTMPHL MESSAGE DATE: JUL 26 2019 1534 UTC THE TERMINAL DOPPLER WEATHER RADAR (TDWR) AT PHILADELPHIA INTERNATIONAL AIRPORT (TPHL) REQUIRES ADDITIONAL MAINTENANCE TO BE RETURNED TO NORMAL SERVICE. WHILE THE RADAR IS CURRENTLY OPERATING, IT MAY GO DOWN AGAIN AT ANY TIME. FURTHER REPAIR WORK IS SCHEDULED FOR EARLY NEXT WEEK.