On 18 June 2020, operation was RIH and wash down 13 3/8” CSG, last two 2m from shoe depth, observed sudden shoot in press and lost circulation. After confirming that DAS laflure has failed, decided to break the joint and lay down joint using circulation sub. While attempting to break with power tong, operator gave signal to wench operator (FM) to p/up tong. Driller though signal was given to him & attempt to P/up csg joint ahead of time (joint was still not disconnected). Results in having o/pull on Single Joint Elevator (SJE) where Shackle (1” size) between Swivel and slings got deformed/ disconnected and fall on rig floor, close to Draw work around 4.5m from rotary. Luckily, DAS operator moved just before SJE and two slings drop and rest on power tong. No injuries.