Around 6:55 there was a power glitch. Power in the experimental hutch and rack room went down in SASE3, error message in Xray interlock system and no power for PP laser.

During morning TS turned the power on and interlock issues were solved by DESY. SCS could restart large part of SCS systems, however got help of DOC only after 2:30p.m. Similarily, PP laser was needed help of DOC and got this help only around 2p.m. The afternoon shift was mainly bringing the instrument in operation with helps of DOC. Around 9p.m. we realized that PP laser is not in operational state because of large fluctuations, this was not communicated to SCS at all. After calling the Laser group, SCS was told that the laser group will work on recover of the laser on Sunday morning. Without laser we could not continue user program, therefore  at least 24h of user operation were lost.