What caused this operator to take this risk? Was the machine’s elevating ability damaged or inoperative? If so, the machine should have been taken out of service until properly repaired. Fall protection as specified by the manufacture is required to be used by all occupants. The guard rails in the application provide the necessary fall protection. Being on the ladder shown, certainly takes the worker out of the protective envelope provided by the guardrails.
Work smart, work SAFE, don’t use powered equipment that is damaged, defective or not functioning as designed.
If you have employees who operate aerial or scissors lift equipment, contact Evergreen Safety Council for information regarding training of your operators.