STS-134 No Earlier Than 5/2 最低日本時間5/3午前３時まで延期

Endeavour Launch Scrubbed
Shuttle Launch Director Mike Leinbach has scrubbed today's STS-134 launch attempt because of an issue associated with Auxiliary Power Unit 1 heaters. There will be at least a 72-hour scrub turnaround while engineers assess the issue.
"During today’s countdown, engineers detected a failure in one of two heater circuits associated with Auxiliary Power Unit (APU) 1. Heaters are required to keep the APUs’ hydrazine from freezing on orbit. Attempts to activate the heater were not successful .