Earlier today, UAL1045, enroute from Newark NJ to Austin TX, had to return to Newark because of fuel pump problems that prevented the flight crew from using any of the fuel in the center fuel tank. The fuel was essentially "trapped" in the center tank essentially resulting in not having enough available fuel to reach their destination. They were over southeastern Pennsylvania when this occurred and turned around for a safe landing at KEWR a short time later.
https://www.flightaware.com/live/flight/UAL1045/history/20231111/1111Z/KEWR/KEWR
