MASE Product Failure Injury Report
Product involved: Werner D-1532-2
What happened: Workers were applying tar to roofs. Ladder was moved around throughout the day. As one worker went to descend from a roof, the extension ladder collapsed, telescoping on itself, until the ladder fell from the eave of the roof.
Injuries: Back, leg injuries
Recommendations: Use a rung engagement device with a positive acting mechanism to prevent fly-lock where fly section tip partially engages a ladder rung. Additional safety systems to prevent ladder collapse can be added including a method to lock a rung from one extension ladder section to a rung on the second extension ladder section.
OSHA/Standard violations?: No
