The session is a single lesson that will introduce the who, what where, when and why's of overhaul and maintenance of Onboard Systems cargo hooks and hoists. A summary of the tasks and how to get access to necessary technical publications will be presented. Finally, a description of work that can be done locally in the field vs. depot level maintenance that has to be done only by Onboard. This course will allow operators how best to maintain airworthiness of their Onboard hook and hoists.