Ashley, if you open the full docket and go to the first page, you will find the details. It appears that a person was injured (crushed) due to the unintended movement of an elevator. You can find it on page 6 of the lawsuit here: https://www.docketalarm.com/cases/N...A_v._DELUXE_HOME_BUILDERS_CORP._et_al/1/

Regarding your question about what is unsafe about the controller, let me explain. Elevator safety primarily hinges on redundancy. Eliminating redundancies or interpreting the safety code in a way that reduces redundancies to simplify the controller, making it smaller and cheaper, is problematic. Consider why manufacturers like MCE, GAL, Virginia Control, EC, OTIS, etc., have much larger controllers with numerous contactors, relays, wires, and boards, whereas Smartrise uses a single small board for everything. It's not that Smartrise designers are smarter than other controller manufacturers; rather, they may be bypassing safety code to make their controller compact and affordable. For instance, the code requires certain safety signals to be transmitted through hardware, not software. However, Smartrise controllers transmit many safety signals via communication networks, which are software-based, but they say because we use a specific type of processing unit it will not be considered software while it is still software.

I searched smartrise in this forum and found numerous comments where people report unsafe behavior of these controllers. Here are some references for you:

http://www.vatortrader.com/forums/ubbthreads.php?ubb=showflat&Number=35782&Searchpage=1&Main=6353&Words=%2Bsmartrise&Search=true#Post35782
http://www.vatortrader.com/forums/ubbthreads.php?ubb=showflat&Number=34850&Searchpage=2&Main=6121&Words=%2Bsmartrise&Search=true#Post34850
http://www.vatortrader.com/forums/ubbthreads.php?ubb=showflat&Number=32451&Searchpage=3&Main=5617&Words=%2Bsmartrise&Search=true#Post32451
http://www.vatortrader.com/forums/ubbthreads.php?ubb=showflat&Number=32176&Searchpage=4&Main=5556&Words=%2Bsmartrise&Search=true#Post32176
http://www.vatortrader.com/forums/ubbthreads.php?ubb=showflat&Number=32144&Searchpage=4&Main=5414&Words=%2Bsmartrise&Search=true#Post32144