RIH a gas lift completion on 2.3/8” NU tubing was in progress until a hold up observed on top of 4.5” liner, tried with working on the string but no success to pass obstruction. It was decided to connect a standpipe hose and try passing an obstruction by washing down. Operation is carried out by using of 2 3/8” completion Tubing + X/O + FOSV + Circulation head, the makeup done in the V-door due to the high stick up of the string once held up. After stopping of wash down the Tubing was B/O in order to be laid down and it immediately started tilting upside down due to the weight above the Elevator was bigger than the weight of the Tubing below the Elevator. The hanging assembly flipped 180 degrees and the Tubing slid down thru the Elevator dropping near the driller room and on the ground.