Artesyn ATCA-7365 Installation and Use (May 2014) - Manual (Page 69)

Hardware Preparation and Installation
ATCA-7365 Installation and Use (6806800K65M) 69
3. Remove the face plate cables, if applicable.
4. Unfasten the screws of the face plate until the blade is detached from the shelf.
5. Remove the blade from the shelf.
Data Loss
Removing the blade with the blue LED still blinking causes data loss.
Wait until the blue LED is permanently illuminated, before removing the blade.