U.S. spacewalk was cancelled on June 24, 2024 due to a water leak in the service and cooling umbilical unit (SCU) on Tracy Dyson's spacesuit.

Tracy Dyson and Michael Barratt set their suits to battery power at 12:46 UTC and opened the hatch to the space station's Quest airlock before reporting the water issue.

"Oh my goodness," said Tracy Dyson. "Water is flowing out of my SCU guys."

"Yeah, there is a lot of particulates floating around here," added Michael Barratt. "There is water everywhere in here."

"Tracy, if you can reconnect your SCU to the DCM [Display and Control Module], that is the best way to stop this," radioed capcom Stephen Bowen from Mission Control in Houston.

Once Tracy Dyson reconnected her spacesuit cooling unit, the leak stopped but she had to deal with ice on her gloves and concerns about where other ice deposits had formed. Tracy Dyson closed the airlock hatch.

Tracy Dyson and Michael Barratt worked with ground controllers to repressurize the crew lock section of the airlock before returning inside the station's equipment lock.

This spacewalk had a duration of 31 minutes, officially ending 13:17 UTC. Tracy Dyson has now logged 23 hours and 20 minutes on four EVAs. Michael Barratt now has spent 5 hours and 37 minutes on three spacewalks.