Here are links to UK HSE documents regarding this hazard.
http://www.hse.gov.uk/foi/internalop...us/5_03_58.pdf
http://www.hse.gov.uk/foi/internalop...us/5_02_52.pdf
Our company recognizes that helicopters are not equipped with tested tie offs for fall protection and that it may not always be practicable to provide an overhead anchor or work stand.
We require work stands where practicable.
We require three points of contact while climbing up and down and a safety observer to provide aid in case of a fall in instances where a work stand or overhead tie off are not available.