Stop Use and Product Recall Notice: 3M™ Model SWSW Series Mobile SkyWalk Horizontal Lifeline Systems and Components A recent analysis of 3M™ Model Number SWSW Series Mobile SkyWalk horizontal lifeline systems identified that these systems may not satisfactorily meet the minimum requirements of OSHA 29 CFR 1910.66, 1926.502 regulations and may not arrest a fall in the working clearances stated in 3M user manuals. Please see the recall notification below for further details.